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Home> Hot Product Listed Z   > Zinc sulfate Heptahydrate
7446-20-0 structure

Zinc sulfate Heptahydrate

CAS No.:7446-20-0
EINECS(EC#): 231-793-3
Molecular Weight:161.4716
Molecular Formula:O4SZn (isomer)
Properties
Appearance
colourless to white crystalline solid
Density
1.957
Melting Point
100℃
Boiling Point
330 °C at 760 mmHg
Flash Point
无意义
Solubility
960 g/L
Color/Form
Colorless, orthorhombic crystals
Stability
Stable. Incompatible with strong oxidizing agents. Hygroscopic - protect from moisture.
HS Code
28332600
Storage temp
Store at RT.
Safety and Handling
Hazard Codes
Xn
Risk Statements
R22;R41;R50/53
Safety Statements
S22;S26;S39;S46;S60;S61
HazardClass
9.2
Safety

Safety Information of ZINC SULFATE HEPTAHYDRATE(7446-20-0):
Hazard Codes:Xn ,N
Risk Statements:22-41-50/53-36/38
22:Harmful if swallowed.
41:Risk of serious damage to eyes.
50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
36/38:Irritating to eyes and skin
Safety Statements:22-26-39-46-60-61-25
22:Do not breathe dust.
26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
39:Wear eye/face protection.
46:If swallowed, seek medical advice immediately and show this container or label.
60:This material and its container must be disposed of as hazardous waste.
61:Avoid release to the environment. Refer to special instructions/safety data sheets.
25:Avoid contact with eyes
RIDADR:UN 3077 9/PG 3
WGK Germany:3
RTECS:ZH5300000
HS Code:28332600
Human poison by an unspecified route. Poison experimentally by subcutaneous, intravenous, and intraperitoneal routes. Moderately toxic by ingestion. Experimental reproductive effects. When heated to decomposition it emits toxic fumes of SOx and ZnO. See also ZINC SULFATE.

Toxicity
1. ???

sln-dmg-orl 5?mmol/L

??? MUREAV ?? Mutation Research. 90 (1981),91.
2. ???

dni-mus-ipr 20?g/kg

??? ARGEAR ?? Archiv fuer Geschwulstforschung. 51 (1981),605.
3. ???

unr-man LDLo:221?mg/kg

??? 85DCAI ?? Poisoning; Toxicology, Symptoms, Treatments. 2 (1970),73.
4. ???

orl-rat LD50:2150?mg/kg

??? ARTODN ?? Archives of Toxicology. 54 (1983),275.
5. ???

scu-rat LDLo:330?mg/kg

??? HBAMAK ?? “Abdernalden’s Handbuch der Biologischen Arbeitsmethoden.“ 4 (1935),1419.
6. ???

ivn-rat LDLo:49?mg/kg

??? HBAMAK ?? “Abdernalden’s Handbuch der Biologischen Arbeitsmethoden.“ 4 (1935),1419.
7. ???

orl-mus LD50:2200?mg/kg

??? BSPBAD ?? Bulletin de la Societe de Pharmacie de Bordeaux. 116 (1977),47.
8. ???

ipr-mus LD50:260?mg/kg

??? BSPBAD ?? Bulletin de la Societe de Pharmacie de Bordeaux. 116 (1977),47.
9. ???

scu-dog LDLo:78?mg/kg

??? HBAMAK ?? “Abdernalden’s Handbuch der Biologischen Arbeitsmethoden.“ 4 (1935),1419.
10. ???

ivn-dog LDLo:66?mg/kg

??? HBAMAK ?? “Abdernalden’s Handbuch der Biolo
Skin, Eye, and Respiratory Irritations
Zinc salts of strong mineral acids are astringent, corrosive to skin ... /Zinc salts/
Inhalation of dust causes irritation of nose and throat. ... Contact with eyes or skin causes irritation.
Cleanup Methods
Environmental considerations: Land spill: Dig a pit, pond, lagoon, or holding area to contain liquid or solid material. /SRP: If time permits, pits, ponds, lagoons, soak holes, or holding areas should be contained with a flexible impermeable membrane liner./ Cover solids with a plastic sheet to prevent dissolving in rain or fire fighting water.
Environmental considerations: Water spill: Neutralize with agricultural lime, crushed limestone or sodium bicarbonate. Add soda ash. Adjust pH to neutral (pH= 7). Use mechanical dredges or lifts to remove immobilized masses of pollutants and precipitates.
Transport
UN 3077
Fire Fighting Procedures
If material on fire or involved in fire: Extinguish fire using agent suitable for type of surrounding fire. Material itself does not burn or burns with difficulty.
Fire Potential
Non-combustible
Formulations/Preparations
Grades: Technical; USP; reagent. /Heptahydrate/
Fertilizer solutions are sold on the basis of 10-12% elemental zinc content
Neozin (American optical): solution (sterile) 0.25% with phenylephrine hydrochloride 0.125% and benzalkonium chloride 0.004% in 15 mL containers (nonprescription).
Optised (Professional Pharmacal): solution (sterile) 0.25% with phenylephrine hydrochloride 0.125% and benzalkonium chloride 1:10000 in 15 mL containers (nonprescription).
Prefrin-Z (Allergan): solution (sterile) 0.25% with phenylephrine hydrochloride 0.12%, polyvinyl alcohol 1.4%, sodium bisulfite, sodium citrate, sodium chloride, sodium hydroxide and thimerosal 0.005% in 15 mL containers.
Visine-AC (Leeming): solution (sterile, isotonic) 0.25% with tetrahydrozoline hydrochloride 0.05%, boric acid, sodium citrate, sodium chloride, edetate disodium 0.1% and benzalkonium chloride 0.01% in 15 mL and 30 mL containers (nonprescription).
Zincfrin (Alcon/BP): solution (sterile) 0.25% with phenylephrine hydrochloride 0.12% and benzalkonium chloride 0.01% in 15 mL containers (nonprescription).
Op-Thal-Zin (Alcon). Solution (sterile) 0.25% with benzalkonium chloride 0.01% in 15 ml containers (nonprescription).
Zinc sulfate, basic: monohydrate ... zinc content 20%
Zinc sulfate ophthalmic solution: 0.217% Eye-Sed ... Zinc sulfate combination ophthalmic solutions: 0.25% with naphazoline hydrochloride 0.02%: VasoClear A ... 0.25% with Phenylephrine hydrochloride 0.12%: Phenylzin ... 0.25% with tetrahydrozoline hydrochloride 0.05%: Collyrium 2 Eye Drops ... .
Zinc sulfate preparations: Baths: zinc sulfate Bath ... Eye Lotions: Collyrium Zinc Luteum ... Collyrium Zinc Sulfuric ...
Zinc sulfate preparations: Eye-drops: ... Zinc Sulfate & Adrenaline Eye-drops ... Irrigations: Zinc Sulfate Irrigation ... Lotions: Zinc sulfate Lotions ... Zinc Sulfate Lotion ... Mouth-washes: Zinc Sulfate and Zinc Chloride Mouth-wash ...
Copper and Zinc Sulfate Lotion ...
Trade Names: Bonazen, Medizinc, Bufopto Zinc Sulfate, Caswell-No-927, Op-thal-zin, Optraex, Solvenzinc, Verazinc, Zincate, Zincomed, Zincosite, A13-03967, Orazinc, Zinc-200, Zinclet, Neozin, Optised, Prefrin-Z, Visine-AC, Zincfrin, Zinc-Gro: Zincosite
ZnSO4 is available as the mono-, hexa-, and heptahydrates with zinc contents of 36, 24, and 22%, respectively. The principal commercial preparation of zinc sulfate is the monohydrate granular (36% of zinc) ...
Ophthalmic: Solution: 0.25% with Naphazoline Hydrochloride 0.012%, Clear Eyes ACR ( with benzalkonium chloride and glycerin; viscous), (Prestige); 0.25% with Tetrahydrozoline Hydrochloride 0.05% Visine A.C. ( with benzalkonium chloride and edetate disodium), (Pfizer).
Exposure Standards and Regulations
Drug products containing certain active ingredients offered over-the-counter (OTC) for certain uses. A number of active ingredients have been present in OTC drug products for various uses, as described below. However, based on evidence currently available, there are inadequate data to establish general recognition of the safety and effectiveness of these ingredients for the specified uses: zinc sulfate is included in skin protectant drug products (fever blister and cold sore treatment).
Other Preventative Measures
If material not on fire and not involved in fire: Keep material out of water sources and sewers. Build dikes to contain flow if necessary. Keep upwind. Avoid breathing vapors or dust. 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.
Prevention ... /of metal fume fever/ is a matter of keeping exposure of workers below level of concn currently accepted as satisfactory for working with the metal in industry, preferably by employment of proper local exhaust ventilation to collect fumes at their source. Acceptable respirators are avail commercially but should be used only under suitable conditions. /Zinc/
In all cases where zinc is heated to the point where fume is produced, it is most important to ensure that adequate ventilation is provided. Individual protection is best ensured by education of the worker concerning metal-fume fever & the provision of local exhaust ventilation, or, in some situations by wearing of supplied-air hood or mask.
Protective Equipment and Clothing
... Recommended appropriate protective equipment including protective eyewear, long-sleeved shirts and long-legged pants, rubber gloves, and boots. /zinc salts/
/NIOSH approved respirator/; goggles or face shield; protective gloves.
Specification

First Aid Measures of?Zinc sulfate heptahydrate (CAS NO.7446-20-0):
Eyes:Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:Get medical aid. Wash mouth out with water.
Inhalation:Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.

Report

?Zinc and its compounds are on the Community Right-To-Know List.

Disposal Methods
SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational exposure or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in soil or water; effects on animal, aquatic, and plant life; and conformance with environmental and public health regulations.
Chemical Treatability of Zinc; Concentration Process: Ultrafiltration; Chemical Classification: Metals; Scale of Study: Continuous flow, pilot scale; Type of Wastewater Used: Industrial wastewater; Results of Study: 0.38 ppm effluent concentration. /Zinc/
Chemical Treatability of Zinc; Concentration Process: Miscellaneous sorbents; Chemical Classification: Metals; Scale of Study: Literature review; Type of Wastewater Used: Unknown; Results of Study: Final concentration reduced to 0.1 ppb; SiO2 + CaO slags used. /Zinc/
The proprietary Sulfex process (Permutit Co) has been applied to zinc wastes. The process involves addition of ferrous sulfide, which gradually releases sulfide to precipitate the zinc ... . /Zinc/
In the case where zinc removal is the only consideration and recovery is not warranted, removal by precipitation can be accomplished by standard pH adjustment through lime addition, precipitation and flocculation, and sedimentation, employing standard waste treatment equipment, operating data for existing chemical precipitation units indicate that levels of 1 mg/l or less of zinc are readily obtainable with lime precipitation, although assurance of consistent removal of precipitated zinc to lower levels from the effluent stream may require filtration. /Zinc/
Chemical Treatability of Zinc; Concentration Process: Chemical precipitation; Chemical Classification: Metals; Scale of Study: Literature review; Type of Wastewater Used: Unknown; Results of Study: 10.6% reduction by sedimentation. /Zinc/
Chemical Treatability of Zinc; Concentration Process: Biological Treatment; Chemical Classification: Metals; 1) Scale of Study: Literature review; Type of Wastewater Used: Unknown; Results of Study: 89% reduction; Activated sludge process. 2) Scale of Study: full scale; Type of Wastewater Used: domestic wastewater; Results of Study: 20-91% reduction achieved; Survey of municipal wastewater treatment plants. 3) Scale of Study: Continuous flow and pilot scale; Type of Wastewater Used: domestic wastewater; Results of Study: 13-14% reduction in primary treatment. 4) Scale of Study: Laboratory scale; Type of Wastewater Used: Synthetic wastewater; Results of Study: Biological growth inhibited; Study of nitrosomas bacteria. 5) Scale of Study: Continuous flow and full scale; Type of Wastewater Used: Domestic wastewater; Results of Study: 60% reduction; Activated sludge process. 6) Scale of Study: Laboratory scale; Type of Wastewater Used: Synthetic wastewater; Results of Study: Oxygen uptake inhibited. 7) Scale of Study: Literature review; Type of Wastewater Used: Unknown; Results of Study: 57% reduction; Activated sludge process. /Zinc/
Chemical Treatability of Zinc; Concentration Process: Chemical precipitation; Chemical Classification: Metals; 1) Scale of Study: Pilot scale; Type of Wastewater Used: Synthetic wastewater; Results of Study: 1% reduction with alum; 3 coagulants used: 220 ppm of alum at pH= 6.4. 40 ppm of ferric chloride at pH= 6.2; 415 ppm of lime at pH= 11.5; chemical coagulation was followed by dual media filtration. 2) Scale of Study: Laboratory scale, continuous flow; Type of Wastewater Used: Synthetic wastewater; Results of Study: 100% reduction with lime; Lime dose of 50 ppm added. 3) Scale of Study: Pilot scale; Type of Wastewater Used: Domestic wastewater and pure compound (one solute in a solvent) Results of Study: Iron system - 63% reduction, low lime system - 85% reduction; High lime system - 76% reduction; 3 coagulant systems were used: Iron system used 45 ppm as Fe of Fe2(SO4)3 at pH= 6.0. Low lime system used 20 ppm as Fe of Fe2 (SO4)3 and 260 ppm of CaO at pH= 10.0. High lime system used 600 ppm of CaO at pH= 11.5. Chemical coagulation was followed by multimedia filtration. 4) Scale of Study: Full scale, continuous flow; Type of Wastewater Used: Domestic wastewater; Results of Study: 90% reduction with lime (full scale); 37% reduction with lime (continuous flow); Lime dose of 350-400 ppm as calcium oxide at pH= 11.3. 5) Scale of Study: Literature review; Type of Wastewater Used: Unknown; Results of Study: 10.6% reduction by sedimentation. 6) Scale of Study: Literature review; Type of Wastewater Used: Unknown; Results of Study: 91.4% reduction with lime; Lime dose of 400 ppm added. /Zinc/
Chemical Treatability of Zinc; Concentration Process: Reverse osmosis; Chemical Classification: Metals; Scale of Study: Batch flow; Type of Wastewater Used: Pure compound (one solute in a solvent); Results of Study: 1) 96.6% reduction with C/PEI membrane at pH= 8.0 100% reduction with C/PEI membrane at pH= 11.0; CA membrane operated at 400 psig and 16-22 deg C. 2) Results of Study: 96.9%-99.5% reduction with CA membrane; CA membrane operated at 400 psig and 16-22% deg C. /Zinc/
Chemical Treatability of Zinc; Concentration Process: Activated carbon; Chemical Classification: Metals; Scale of Study: Full scale continuous flow; Type of Wastewater Used: (not stated); 1) Results of Study: 81% reduction; 124 ppb effluent concentration; Carbon used as advanced treatment of biologically and chemically treated wastewater. Plant capacity 0.66 cu m/sec. Data presented for two time periods. 2) Results of Study: 61% reduction; 162 ppb effluent concentration; Carbon used as advanced treatment of biologically and chemically treated wastewater. Plant capacity 0.66 cu m/sec. Data presented for two time periods. /Zinc/
Disposal procedures for spills include ferric hydroxide precipitation and cement-based fixation processes; the latter method is very effective in rendering zinc contaminants insoluble (Dawson and Mercer 1986). Unsalvageable zinc waste may be buried in an approved landfill while salvageable zinc is typically recycled.
Reach Info
MSDS

2.Hazard identification

2.1 Classification of the substance or mixture

Acute toxicity - Oral, Category 4

Serious eye damage, Category 1

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

Danger

Hazard statement(s)

H302 Harmful if swallowed

H318 Causes serious eye damage

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.

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

P273 Avoid release to the environment.

Response

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

P330 Rinse mouth.

P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

P310 Immediately call a POISON CENTER/doctor/\u2026

P391 Collect spillage.

Storage

none

Disposal

P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification

none

Computational chemical data
  • Molecular Weight:161.4716g/mol
  • Molecular Formula:O4SZn
  • Exact Mass:159.880876
  • Monoisotopic Mass:159.880876
  • Complexity:62.2
  • Rotatable Bond Count:0
  • Hydrogen Bond Donor Count:0
  • Hydrogen Bond Acceptor Count:4
  • Topological Polar Surface Area:88.6
  • Heavy Atom Count:6
  • Defined Atom Stereocenter Count:0
  • Undefined Atom Stereocenter Count:0
  • Defined Bond Stereocenter Count:0
  • Undefined Bond Stereocenter Count:0
  • Isotope Atom Count:0
  • Covalently-Bonded Unit Count:2
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