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Home> Hot Product Listed D   > Diuron

Diuron

CAS No.:330-54-1
EINECS(EC#):206-354-4
Molecular Weight:233.095
Molecular Formula:C9H10Cl2N2O (Products with the same molecular formula)
MOL File:330-54-1.mol
Names and Identifiers
Synonyms

DIREX 4LTelvar Diuron Weed KillerDREXEL1-(3,4-DICHLOROPHENYL)-3,3-DIMETHYLUREE (FRENCH)DIATER80%WDGDIUROL3-(3,4-Dichlorophenol)-1, 1-dimethylureaUNIDRONDIMETHOMORPHHW 920DP Hardener 953- (3,4-Dichloor-fenyl)-1, 1-dimethylureum(DUTCH)DCMU 991-(3,4-Dichlorophenyl)-3,3-dimethylureaKarmexAF 101USAF P-7Karmex DKarmex DWKarmex Diuron Herbicide3- (3,4-Dichlor-phenyl)-1, 1-dimethyl-harnstoff(GERMAN)HerbatoxDichlorfenidimMarmer3-(3,4-Dichlorophenyl)-1,1-dimethylureaDiuron 98%TCDynexDiuron Tech (3-(3,4-Dichlorophenyl)-1,1-Dimethylurea)DuranDiurex3-(3,4-DICLORO-FENYL)-1,1-DIMETIL-UREA (ITALIAN)Di-On1,1-DIMETHYL-3-(3,4-DICHLOROPHENYL)UREAN-(PHOSPHONOMETHYL)GLYCINEUrea,N'-(3,4-dichlorophenyl)-N,N-dimethyl-LucenitDailon3-(3,4-DICHLOOR-FENYL)-1,1-DIMETHYLUREUM (DUTCH)DREXEL DIURON 4LFARMCO DIURON3-(3,4-DICHLOROPHENOL)-1,1-DIMETHYLUREADiuron 95%TCCEKIURONUSAF XR-42N-(3,4-Dichlorophenyl)-N,N-dimethylureaN-(3,4-Dichlorophenyl)-N, N-dimethylureaDIURON 4LDiuronUrea, 3- (3,4-dichlorophenyl)-1,1-dimethyl-TELVARDMU3-(3,4-DICHLOR-PHENYL)-1,1-DIMETHYL-HARNSTOFF (GERMAN)CRISURON3-(3,4-dichlorophenyl)-1,1-dimethyl-ureaVonduron1, 1-Dimethyl-3-(3,4-dichlorophenyl)ureaKaramexDiuron 50%WPDCMUN′-(3,4-DICHLOROPHENYL)-N,N-DIMETHYLUREADyhard UR 2003- (3, 4-Dicloro-fenyl)-1,1-dimetil-urea(Italian)Urea, N- (3,4-dichlorophenyl)-N,N-dimethyl-

Inchi
InChI=1S/C9H10Cl2N2O/c1-13(2)9(14)12-6-3-4-7(10)8(11)5-6/h3-5H,1-2H3,(H,12,14)
InChkey
XMTQQYYKAHVGBJ-UHFFFAOYSA-N
Canonical Smiles
CN(C)C(=O)NC1=CC(=C(C=C1)Cl)Cl
Properties
Appearance
white crystalline solid
Density
1.369 g/cm3
Melting Point
158-159℃
Boiling Point
385.2 °C at 760 mmHg
Refractive Index
1.605
Flash Point
186.7 °C
Water
Slightly soluble. 0.0042 g/100 mL
Solubilities
0.0042 g/100 mL in water
Color/Form
White, crystalline solid
Stability
Stable. Incompatible with strong acids, strong bases, strong oxidizing agents.
Storage temp
APPROX 4°C
Spectral properties
Intense mass spectral peaks: 72 m/z (100%), 232 m/z (38%), 234 m/z (26%), 44 m/z (26%)
Intense mass spectral peaks: 59 m/z, 124 m/z, 174 m/z, 187 m/z, 219 m/z
Safety and Handling
Hazard Codes
Xn:Harmful
Risk Statements
R22;R40;R48/22;R50/53
Safety Statements
S2;S13;S22;S23;S37;S46;S60;S61;S61
HazardClass
9
Safety

Hazard Codes:?HarmfulXn,?DangerousN,?FlammableF
Risk Statements: 22-40-48/22-50/53-36-20/21/22-11?
R22:Harmful if swallowed.?
R40:Limited evidence of a carcinogenic effect.?
R48/22:Harmful: danger of serious damage to health by prolonged exposure if swallowed.?
R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.?
R36:Irritating to eyes.?
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.?
R11:Highly flammable.
Safety Statements: 13-22-23-37-46-60-61-2-36/37-26?
S13:Keep away from food, drink and animal foodstuffs.?
S22:Do not breathe dust.?
S23:Do not breathe vapour.?
S37:Wear suitable gloves.?
S46:If swallowed, seek medical advice immediately and show this container or label.
S60:This material and its container must be disposed of as hazardous waste.
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
S2:Keep out of the reach of children.?
S36/37:Wear suitable protective clothing and gloves.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
RIDADR: UN 3077 9/PG 3
WGK Germany: 3
RTECS: YS8925000
HazardClass: 9
PackingGroup: III

PackingGroup
III
Skin, Eye, and Respiratory Irritations
MAY IRRITATE EYES, NOSE, THROAT, & SKIN.
Cleanup Methods
Spills of pesticides at any stage of their storage or handling should be treated with great care. Liquid formulations may be reduced to solid phase by evaporation. Dry sweeping of solids is always hazardous: These should be removed by vacuum cleaning or by dissolving them in water or other solvent in the factory environment. In the field they may be washed away with water into a suitable soak-hole. /Pesticides/
CLEANING GLASSWARE & SPRAY EQUIPMENT: FLUSH TANK, PUMP, HOSES, & BOOM WITH SEVERAL CHANGES OF WATER AFTER REMOVING NOZZLE TIPS & SCREENS (CLEAN THESE PARTS SEPARATELY). GLASSWARE CAN BE CLEANED BY THOROUGH WASHING WITH DETERGENT FOLLOWED BY ACETONE RINSE.
Hydrolysis is not recomended as a /cleanup/ procedure because of the generation of the toxic products, 3,4-dichloroaniline and dimethylamine.
Environmental considerations: Land spill: Dig a pit, pond, lagoon, holding area to contain liquid or solid material. /SRP: If time permits, pits, ponds, lagoons, soak holes, or holding areas should be sealed with an impermeable flexible membrane liner./ Cover solids with a plastic sheet to prevent dissolving in rain or fire fighting water.
Environmental considerations: Water spill: If dissolved, in region of 10 ppm or greater concentration, apply activated carbon at ten times the spilled amount. Use mechanical dredges or lifts to remove immobilized masses of pollutants and precipitates.
Transport
UN 2767
Fire Fighting Procedures
If material involved in fire: Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.)
Fire Potential
Not flammable
Formulations/Preparations
USEPA/OPP Pesticide Code 035505; Trade Names: Karmex; Cekiuron; Crisuron; Dailon; Diater; DI-ON; Direx 4L; Diurex; Diurol; Vonduron; Drexel diuron 4L; Dynex; Krovar, Ureabor, Unidron.
Formulation types: wettable powder, suspension concentrate
Formulations: Flowable, granule, wettable powder
GRADES: TECHNICAL MATERIAL, 95%, WETTABLE POWDER, 80%.
Reactivities and Incompatibilities
... COMPATIBLE WITH MOST OTHER HERBICIDES WITH WHICH THEY MIGHT BE MIXED. CERTAIN ESTER FORMULATIONS OF HORMONE WEED KILLERS MAY CREATE A PHYSICAL PROBLEM IN SPRAY TANK. /DIURON FORMULATIONS/
Treatment at elevated temperatures by acid or base yields dimethylamine and 3,4-dichloroaniline.
Strong acids.
Other Preventative Measures
AVOID BREATHING DUST OR SPRAY MIST. AVOID CONTACT WITH SKIN, EYES, & CLOTHING. KEEP OUT OF REACH OF CHILDREN.
Smoking, eating, drinking /and the use of toilet facilities/ before washing should be absolutely prohibited when any pesticide of moderate or higher toxicity is being handled or used. /Pesticides/
Handling and storage cautions. ... Avoid nose, skin contact or breathing dust, spary mist. Wash contaminated clothing with soap, hot water before re-use.
If material not involved in fire: Keep material out of of water sources and sewers. Build dikes to contain flow as necessary.
Personnel protection: Keep upwind. ... Avoid breathing vapors or dusts. Wash away any material which may have contacted the body with copious amounts of water or soap and water.
SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.
The worker should wash daily at the end of each work shift.
Workers whose clothing may have become contaminated should change into uncontaminated clothing before leaving the work premises.
SRP: Contaminated protective clothing should be segregated in such a manner so that there is no direct personal contact by personnel who handle, dispose, or clean the clothing. Quality assurance to ascertain the completeness of the cleaning procedures should be implemented before the decontaminated protective clothing is returned for reuse by the workers. Contaminated clothing should not be taken home at end of shift, but should remain at employee's place of work for cleaning.
Protective Equipment and Clothing
Wear appropriate personal protective clothing to prevent skin contact.
Wear appropriate eye protection to prevent eye contact.
Specification

?Diuron (CAS NO.330-54-1) is also named as 1,1-Dimethyl-3-(3,4-dichlorophenyl)urea ; 1-(3,4-Dichlorophenyl)-3,3-dimethylurea ; 1-(3,4-Dichlorophenyl)-3,3-dimethyluree ; 1-(3,4-Dichlorophenyl)-3,3-dimethyluree [French] ; 3-(3,4-Dichlorophenyl)-1,1-dimethylurea ; 3-(3,4-Dicloro-fenyl)-1,1-dimetil-urea ; 3-(3,4-Dicloro-fenyl)-1,1-dimetil-urea [Italian] ; 4-12-00-01263 (Beilstein Handbook Reference) ; AF 101 ; AI3-61438 ; Anduron ; Ansaron ; BRN 2215168 ; Bioron ; CCRIS 1012 ; Caswell No. 410 ; Cekiuron ; Crisuron ; DCMU ; DCMU 99 ; Dirurol ; Ditox-800 ; Duran ; Durashield ; Dynex ; EPA Pesticide Chemical Code 035505 ; Farmco diuron ; HSDB 382 ; HW 920 ; Herbatox ; Herburon ; N'-(3,4-Dichlorophenyl)-N,N-dimethylurea ; N,N,-Dimethyl-N'-(3,4-dichlorophenyl)urea ; N-(3,4-Dichlorophenyl)-N',N'-dimethylurea ; NSC 8950 ; Preventol A 6 ; Seduron ; Sup'r flo ; Telvar diuron weed killer ; USAF P-7 ; USAF XR-42 ; Unidron ; Urox D ; Vonduron .?Diuron (CAS NO.330-54-1) is?a white crystalline solid.?It is a wettable powder. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. Diuron can cause illness by inhalation, skin absorption and/or ingestion. It is very slightly soluble in water. Diuron is incompatible with strong acids. It may cause irritation of nose and throat.

Octanol/Water Partition Coefficient
log Kow= 2.68
Disposal Methods
SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.
Group I Containers: Combustible containers from organic or metallo-organic pesticides (except organic mercury, lead, cadmium, or arsenic compounds) should be disposed of in pesticide incinerators or in specified landfill sites. /Organic or metallo-organic pesticides/
Group II Containers: Non-combustible containers from organic or metallo-organic pesticides (except organic mercury, lead, cadmium, or arsenic compounds) must first be triple-rinsed. Containers that are in good condition may be returned to the manufacturer or formulator of the pesticide product, or to a drum reconditioner for reuse with the same type of pesticide product, if such reuse is legal under Department of Transportation regulations (eg 49 CFR 173.28). Containers that are not to be reused should be punctured ... and transported to a scrap metal facility for recycling, disposal or burial in a designated landfill. /Organic or metallo-organic pesticides/
Water treatment method: Powdered activated carbon: Freundlich adsorption parameters: K: 0.095, 1/n= 0.109; Carbon dose to reduce 5 mg/l to a final concn of 0.1 mg/l: 66 mg/l, Carbon dose to reduce 1 mg/l to a final concn of 0.1 mg/l: 12 mg/l
Chemical and thermal decontamination of 20 pesticides, including diuron, dicamba and dalapon are described. Differential thermal analysis showed that complete incineration temperatures of the reagent grade pesticides ranged from about 250 deg C to approximately 850 deg C; 15 of the compounds were completely combustible at 700 deg C or below, while 5 required 700 to 900 deg C. Dalapon contained about 10% of uncombustible residue at 1000 deg C. [Kennedy MV et al; Residue Rev 29: 89-104 (1969)] PubMed Abstract
Diuron, stable under normal conditions, decomposes on heating to 180 to 190 deg C giving dimethylamine and 2,4-dichlorophenyl isocyanate. Treatment at elevated temp by acid or base yields dimethylamine and 3,4-dichloroaniline. Hydrolysis is not recommended as a disposal procedure because of the generation of the toxic products, 3,4-dichloroaniline and dimethylamine. Proper incineration may be the best method to dispose of diuron. Recommendable methods: Landfill & incineration. Not recommendable method: Hydrolysis. Peer review: Incinerate at high temp in a unit with effluent gas scrubbing. (Peer-review conclusions of an IRPTC expert consultation (May 1985))
Reach Info
This substance has been officially registered by enterprises.
ECHA (EU chemicals Management Agency) published the completed registration file as follows:
Completed registration file:
Registered as ubmitted Total tonnage band  
FULL JOINT 100_1000 view >
Registered companies:
Registrant / Supplier details Latest dossier received
Lanxess Deutschland GmbH 2015
Schirm GmbH 2010
AlzChem AG 2010
more >
MSDS

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SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name diuron

1.2 Other means of identification

Product number -
Other names 3-(3,4-dichlorophenyl)-1,1-dimethylurea

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Herbicide
Uses advised against no data available

1.4 Supplier's details

Company WWW.GuideChem.COM
Address 8F, Block C, No.3 Building, Zijin Plaza, No.701, Gudun Road, Hangzhou, Zhejiang 310030, China
Telephone +86-571-89739798
Fax 86(21)54365166

1.5 Emergency phone number

Emergency phone number +86-571-89739798
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

2.Hazard identification

2.1 Classification of the substance or mixture

Acute toxicity - Oral, Category 4

Carcinogenicity, Category 2

Specific target organ toxicity \u2013 repeated exposure, Category 2

Hazardous to the aquatic environment, short-term (Acute) - Category Acute 1

Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 1

2.2 GHS label elements, including precautionary statements

Pictogram(s)
Signal word

Warning

Hazard statement(s)

H302 Harmful if swallowed

H351 Suspected of causing cancer

H410 Very toxic to aquatic life with long lasting effects

Precautionary statement(s)
Prevention

P264 Wash ... thoroughly after handling.

P270 Do not eat, drink or smoke when using this product.

P201 Obtain special instructions before use.

P202 Do not handle until all safety precautions have been read and understood.

P280 Wear protective gloves/protective clothing/eye protection/face protection.

P260 Do not breathe dust/fume/gas/mist/vapours/spray.

P273 Avoid release to the environment.

Response

P301+P312 IF SWALLOWED: Call a POISON CENTER/doctor/\u2026if you feel unwell.

P330 Rinse mouth.

P308+P313 IF exposed or concerned: Get medical advice/ attention.

P314 Get medical advice/attention if you feel unwell.

P391 Collect spillage.

Storage

P405 Store locked up.

Disposal

P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification

none

3.Composition/information on ingredients

3.1 Substances

Chemical name Common names and synonyms CAS number EC number Concentration
diuron diuron 330-54-1 none 100%

4.First-aid measures

4.1 Description of necessary first-aid measures

General advice

Consult a physician. Show this safety data sheet to the doctor in attendance.

If inhaled

If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.

In case of skin contact

Wash off with soap and plenty of water. Consult a physician.

In case of eye contact

Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.

If swallowed

Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.

4.2 Most important symptoms/effects, acute and delayed

INHALATION: May cause irritation of nose and throat. EYES: Irritation. SKIN: Moderately irritating to skin. (USCG, 1999)

4.3 Indication of immediate medical attention and special treatment needed, if necessary

Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR if necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on the left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. /Poisons A and B/

5.Fire-fighting measures

5.1 Extinguishing media

Suitable extinguishing media

Use dry chemical, CO2, water spray, or foam extinguishers ... If material or contaminated runoff enters waterways, notify downstream users of potentially contaminated waters. Notify local health and fire officials and pollution control agencies. From a secure, explosion-proof location, use water spray to cool exposed containers. If cooling streams are ineffective (venting sound increases in volume and pitch, tank discolors or shows any digns of deforming), withdraw immediately to a secure position ... The only respirators recommended for fire fighting are self-contained breathing apparatuses that have full face-pieces and are operated in a pressure-demand or other positive-pressure mode.

5.2 Specific hazards arising from the chemical

Special Hazards of Combustion Products: Highly toxic fumes are imminent Behavior in Fire: Decomposes at 180\u00b0 to 190\u00b0C (USCG, 1999)

5.3 Special protective actions for fire-fighters

Wear self-contained breathing apparatus for firefighting if necessary.

6.Accidental release measures

6.1 Personal precautions, protective equipment and emergency procedures

Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8.

6.2 Environmental precautions

Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided.

6.3 Methods and materials for containment and cleaning up

Spill handling: evacuate persons not wearing protective equipment from area of spill or leak until clean-up is complete. Remove all ignition sources. Collect powdered material in the most convenient and safe manner and deposit in sealed containers. Ventilate area after clean-up is complete. It may be necessary to contain and dispose of this chemical as a hazardous waste. If material or contaminated runoff enters waterways, notify downstream users of potentially contaminated waters. Contact your Department of Environmental Protection or your regional office of the federal EPA for specific recommendations.

7.Handling and storage

7.1 Precautions for safe handling

Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.

7.2 Conditions for safe storage, including any incompatibilities

Store in tightly closed containers in a cool, well-ventilated area.

8.Exposure controls/personal protection

8.1 Control parameters

Occupational Exposure limit values

Recommended Exposure Limit: 10 Hour Time-Weighted Average: 10 mg/cu m.

Biological limit values

no data available

8.2 Appropriate engineering controls

Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.

8.3 Individual protection measures, such as personal protective equipment (PPE)

Eye/face protection

Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

Skin protection

Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.

Respiratory protection

Wear dust mask when handling large quantities.

Thermal hazards

no data available

9.Physical and chemical properties

Physical state white crystalline solid
Colour White, crystalline solid
Odour Odorless
Melting point/ freezing point 280\u00b0C(lit.)
Boiling point or initial boiling point and boiling range 158\u00b0C/11mmHg(lit.)
Flammability Noncombustible Solid
Lower and upper explosion limit / flammability limit no data available
Flash point 103\u00b0C(lit.)
Auto-ignition temperature no data available
Decomposition temperature no data available
pH no data available
Kinematic viscosity no data available
Solubility 0.004 % (NIOSH, 2016)
Partition coefficient n-octanol/water (log value) log Kow = 2.68
Vapour pressure 2e-09 mm Hg (NIOSH, 2016)
Density and/or relative density 1.369 g/cm3
Relative vapour density no data available
Particle characteristics no data available

10.Stability and reactivity

10.1 Reactivity

no data available

10.2 Chemical stability

Stable for 2 yrs. in double polyethylene bag inside a fiber drum under warehouse conditions.

10.3 Possibility of hazardous reactions

May burn, but not readily flammable.DIURON is incompatible with the following: Strong acids (NIOSH, 2016).

10.4 Conditions to avoid

no data available

10.5 Incompatible materials

Treatment at elevated temperatures by acid or base yields dimethylamine and 3,4-dichloroaniline.

10.6 Hazardous decomposition products

Diuron, stable under normal conditions, decomposed on heating to 180 to 190\u00b0C giving dimethylamine and 3,4-dichlorophenyl isocyanate.

11.Toxicological information

Acute toxicity

  • Oral: LD50 Rat (male) oral 3400 mg/kg
  • Inhalation: LC50 Rat inhalation > 0.265 mg/L for 4 hr
  • Dermal: no data available

Skin corrosion/irritation

no data available

Serious eye damage/irritation

no data available

Respiratory or skin sensitization

no data available

Germ cell mutagenicity

no data available

Carcinogenicity

Cancer Classification: Known/ Likely /to be Carcinogenic to Humans/

Reproductive toxicity

no data available

STOT-single exposure

no data available

STOT-repeated exposure

no data available

Aspiration hazard

no data available

12.Ecological information

12.1 Toxicity

  • Toxicity to fish: LC50; Species: Lepomis macrochirus (Bluegill), weight 0.8 g; Concentration: 8.2 mg/L/96 hr (95% confidence limit 7.4 - 9.1 mg/L); Conditions: static bioassay without aeration, temperature 18\u00b0C, pH 7.2-7.5, water hardness 40-50 mg/L as calcium carbonate, alkalinity 30-35 mg/L
  • Toxicity to daphnia and other aquatic invertebrates: LC50; Species: Daphnia magna (water flea); Concentration: 1400 ug/L/24 hr /Conditions of bioassay not specified
  • Toxicity to algae: LC50; Species: Scenedesmus subspicatus (algae); Concentration: 0.022 mg/L for 4 days; Conditions: temperature 23\u00b0C
  • Toxicity to microorganisms: no data available

12.2 Persistence and degradability

AEROBIC: Diuron, present at 100 mg/L, reached 0% of its theoretical BOD in 4 weeks using an activated sludge inoculum at 30 mg/L in the Japanese MITI test(1). In a Zahn-Wellens inherent biodegradability test, 50 mg/L of diuron was found to be not inherently biodegradable with 0% degradation in activated sludge inoculum after 28 days(2). Degradation of diuron in natural soils was found to be slow and incomplete(3). Inoculation of a sandy C-horizon with a diuron-degrading bacterial strain led to substantial diuron degradation, but the addition of purified fulvic acid and humic acid to these inoculated soils decreased this degradation, suggesting that adsorption to humic substances in soil hinders degradation(3). In soil, enzymatic and microbial demethylation of the nitrogen atom and hydroxylation at position 2 of the benzene ring occurs. Duration of activity in soil is about 4 to 8 months, depending on soil type and humidity, with a half-life of 90 to 180 days(4). In a 22 week laboratory study conducted at 27\u00b0C and 60% relative humidity, approximately 40% degradation occurred in Cecil loamy sand (1 ppm applied 4 times) and Brookstone silty clay loam (5 ppm applied 4 times)(5). Biological degradation in soil increased with increasing temperature and decreased with increasing concentration; little degradation was noted at 0\u00b0C in 20 weeks whereas substantial degradation occurred in 10 weeks in two soils at 10 ppm and only in one at 15 ppm when incubated at 20\u00b0C(6,7). Less than 20% of diuron (60 ppm) added to soil was detoxified within 8 weeks and there was little effect on the degradation rate when the soils were titrated to different pH's between 4.3 and 7.5(8). Degradation of diuron in soil was stimulated by amendment of the soil with manure but inhibited by sludge amendment(9).

12.3 Bioaccumulative potential

BCF values of 3.4 to 4.9 and <2.9 to 14 were measured in fish for diuron at concentrations of 0.5 and 0.05 mg/L, respectively, using carp (Cyprinus carpio) which were exposed over an 6-week period(1). According to a classification scheme(2), these BCF values indicate that bioconcentration in aquatic organisms is low(SRC).

12.4 Mobility in soil

The mean value and standard deviation of Koc for diuron compiled from the published literature for 84 soils is 383 and 72 respectively(1). Other Koc experimental values for diuron are: Webster soil, 682(2); mucky peat soil, 879(3); loamy sand soil, 478(3); two subsurface soils from Oklahoma, 224 and 371(4); 480 (5); 400 (6); aquifer sediments, range 69-266(7). In 43 surface soil samples representing a range of soil physicochemical properties collected from dry and wet zones of Sri Lanka, measured Koc values for diuron ranged from 55.3 to 962 (mean, 407; median, 328), while soils from dry zones were 1.5 times higher than those from the wet zone(8). In three representative cotton soils, a red sandy soil, a black cracking clay, and a brown loam, of North West New South Wales, Australia, diuron had Koc values of 457, 488, and 498, respectively(9). According to a classification scheme(10), these measured Koc values suggest that diuron is expected to have moderate to low mobility in soil.

12.5 Other adverse effects

no data available

13.Disposal considerations

13.1 Disposal methods

Product

The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.

Contaminated packaging

Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.

14.Transport information

14.1 UN Number

ADR/RID: UN3077 IMDG: UN3077 IATA: UN3077

14.2 UN Proper Shipping Name

ADR/RID: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S.
IMDG: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S.
IATA: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S.

14.3 Transport hazard class(es)

ADR/RID: 9 IMDG: 9 IATA: 9

14.4 Packing group, if applicable

ADR/RID: III IMDG: III IATA: III

14.5 Environmental hazards

ADR/RID: yes IMDG: yes IATA: yes

14.6 Special precautions for user

no data available

14.7 Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code

no data available

15.Regulatory information

15.1 Safety, health and environmental regulations specific for the product in question

Chemical name Common names and synonyms CAS number EC number
diuron diuron 330-54-1 none
European Inventory of Existing Commercial Chemical Substances (EINECS) Listed.
EC Inventory Listed.
United States Toxic Substances Control Act (TSCA) Inventory Listed.
China Catalog of Hazardous chemicals 2015 Not Listed.
New Zealand Inventory of Chemicals (NZIoC) Listed.
Philippines Inventory of Chemicals and Chemical Substances (PICCS) Listed.
Vietnam National Chemical Inventory Listed.
Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) Listed.

16.Other information

Information on revision

Creation Date Aug 11, 2017
Revision Date Aug 11, 2017

Abbreviations and acronyms

  • CAS: Chemical Abstracts Service
  • ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
  • RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
  • IMDG: International Maritime Dangerous Goods
  • IATA: International Air Transportation Association
  • TWA: Time Weighted Average
  • STEL: Short term exposure limit
  • LC50: Lethal Concentration 50%
  • LD50: Lethal Dose 50%
  • EC50: Effective Concentration 50%

References

  • IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
  • HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
  • IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
  • eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
  • CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
  • ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
  • ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
  • Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
  • ECHA - European Chemicals Agency, website: https://echa.europa.eu/

Disclaimer: The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. We as supplier shall not be held liable for any damage resulting from handling or from contact with the above product.

Precursor and Product
Computational chemical data

Molecular Weight:233.0945 [g/mol]
Molecular Formula:C9H10Cl2N2O
XLogP3:2.7
H-Bond Donor:1
H-Bond Acceptor:1
Rotatable Bond Count:1
Tautomer Count:2
Exact Mass:232.017018
MonoIsotopic Mass:232.017018
Topological Polar Surface Area:32.3
Heavy Atom Count:14
Formal Charge:0
Complexity:211
Isotope Atom Count:0
Defined Atom Stereocenter Count:0
Undefined Atom Stereocenter Count:0
Defined Bond Stereocenter Count:0
Undefined Bond Stereocenter Count:0
Covalently-Bonded Unit Count:1
Feature 3D Acceptor Count:1
Feature 3D Donor Count:1
Feature 3D Ring Count:1
Effective Rotor Count:3
Conformer Sampling RMSD:0.6
CID Conformer Count:10