Guidechem | China Chemical Manufacturers,suppliers,B2B Marketplace
Msds lib
  • Msds lib
  • Products
  • Encyclopedia
  • Buy offers
  • Suppliers
Home> CAS DataBase Listed 1   ->   /  Inorganic Chemicals  /  Inorganic Chemicals  /  Inorganic Chemicals  /  Organic Intermediates  /  Agrochemicals

Magnesium oxide (CAS No. 1309-48-4) SDS

  • CAS No: 1309-48-4
  • Molecular Weight: 40.3044
  • Molecular Formula: MgO
Names and Identifiers Properties Safety and Handling Synthesis Route Precursor and Product Computational chemical data 802 Suppliers


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

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017


1.1 GHS Product identifier

Product name Magnesium oxide

1.2 Other means of identification

Product number -
Other names Magnesiumoxalatedihydrate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Processing Aids and Additives
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

Not classified.

2.2 GHS label elements, including precautionary statements

Pictogram(s) No symbol.
Signal word

No signal word.

Hazard statement(s)


Precautionary statement(s)








2.3 Other hazards which do not result in classification


3.Composition/information on ingredients

3.1 Substances

Chemical name Common names and synonyms CAS number EC number Concentration
Magnesium oxide Magnesium oxide 1309-48-4 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

Fresh air, rest.

In case of skin contact

Remove contaminated clothes. Rinse and then wash skin with water and soap.

In case of eye contact

Rinse with plenty of water (remove contact lenses if easily possible).

If swallowed

Rinse mouth.

4.2 Most important symptoms/effects, acute and delayed

Exposure Routes: inhalation, skin and/or eye contact Symptoms: Irritation eyes, nose; metal fume fever: cough, chest pain, flu-like fever Target Organs: Eyes, respiratory system (NIOSH, 2016)

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

/SRP:/ 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 as necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on 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. /Magnesium and Related Compounds/

5.Fire-fighting measures

5.1 Extinguishing media

Suitable extinguishing media

In case of fire in the surroundings: all extinguishing agents allowed.

5.2 Specific hazards arising from the chemical

no data available

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

Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting.

6.3 Methods and materials for containment and cleaning up

Pick up and arrange disposal. Sweep up and shovel. Keep in suitable, closed containers for disposal.

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

Separated from strong acids. Dry. Well closed.Store in tightly closed containers in a cool, well ventilated area away from moisture.

8.Exposure controls/personal protection

8.1 Control parameters

Occupational Exposure limit values

After reviewing available published literature, NIOSH provided comments to OSHA on August 1, 1988, regarding the "Proposed Rule on Air Contaminants" (29 CFR 1910, Docket No. H-020) ... At that time, NIOSH also conducted a limited evaluation of the literature and concluded that the documentation cited by OSHA was inadequate to support the proposed PEL (as an 8-hour TWA) of 10 mg/cu m for ... magnesium oxide fume ... .

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 or light grey powder
Colour White, very fine powder
Odour Odorless
Melting point/ freezing point 2852\u00baC
Boiling point or initial boiling point and boiling range 3600\u00baC
Flammability Noncombustible SolidNot combustible.
Lower and upper explosion limit / flammability limit no data available
Flash point 3600\u00baC
Auto-ignition temperature no data available
Decomposition temperature no data available
pH pH = 10.3 (saturated aqueous solution)
Kinematic viscosity no data available
Solubility 0.009 % at 30\u00b0C (NIOSH, 2016)
Partition coefficient n-octanol/water (log value) no data available
Vapour pressure 0 mm Hg (approx) (NIOSH, 2016)
Density and/or relative density 3.58
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 under recommended storage conditions.

10.3 Possibility of hazardous reactions

Phosphorus pentachloride and magnesium oxide react with brilliant incandescence [Mellor 8:1016. 1946-1947]. The oxide is incompatible with interhalogens such as bromine pentafluoride, etc.

10.4 Conditions to avoid

no data available

10.5 Incompatible materials

Violent reaction with halogens, chlorine trifluoride, bromine pentalfluoride, phosphorous pentachloride, strong acids. May ignite and explode when heated with sublimed sulfur, magnesium powder, or aluminum powder.

10.6 Hazardous decomposition products

no data available

11.Toxicological information

Acute toxicity

  • Oral: LD50 Rat female oral 3990 mg/kg
  • Inhalation: no data available
  • 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


A4: Not classifiable as a human carcinogen.

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: no data available
  • Toxicity to daphnia and other aquatic invertebrates: no data available
  • Toxicity to algae: no data available
  • Toxicity to microorganisms: no data available

12.2 Persistence and degradability

no data available

12.3 Bioaccumulative potential

no data available

12.4 Mobility in soil

no data available

12.5 Other adverse effects

no data available

13.Disposal considerations

13.1 Disposal methods


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: Not dangerous goods. IMDG: Not dangerous goods. IATA: Not dangerous goods.

14.2 UN Proper Shipping Name

ADR/RID: unknown
IMDG: unknown
IATA: unknown

14.3 Transport hazard class(es)

ADR/RID: Not dangerous goods. IMDG: Not dangerous goods. IATA: Not dangerous goods.

14.4 Packing group, if applicable

ADR/RID: Not dangerous goods. IMDG: Not dangerous goods. IATA: Not dangerous goods.

14.5 Environmental hazards

ADR/RID: no IMDG: no IATA: no

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
Magnesium oxide Magnesium oxide 1309-48-4 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 12, 2017
Revision Date Aug 12, 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%


  • IPCS - The International Chemical Safety Cards (ICSC), website:
  • HSDB - Hazardous Substances Data Bank, website:
  • IARC - International Agency for Research on Cancer, website:
  • eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website:
  • CAMEO Chemicals, website:
  • ChemIDplus, website:
  • ERG - Emergency Response Guidebook by U.S. Department of Transportation, website:
  • Germany GESTIS-database on hazard substance, website:
  • ECHA - European Chemicals Agency, website:

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
Recommended Suppliers
  • FOB Price:10 USD/kg 
  • Min.Order:1 KG 
  • Purity:99.9% 
  • Supply Ability:1000 Month/KG 
  • Formula:MgO 
  • Appearance:White 
  • Einecs:215-171-9 
  • Description:Payment & Packing & DeliveryDetailed Description Payment: We can accept various payment methods, western union, T/T, BTC(bitcoin)etc. Packing: Carton Box, Foil Bags and Drums,or according to your requirements. Delivery:
  • Updatetime:Sep 27 2022 
more +
  • FOB Price:10 USD/kg 
  • Min.Order:1 KG 
  • Purity:99% 
  • Supply Ability:100 Month/T 
  • Formula:MgO 
  • Appearance:powder 
  • Einecs:215-171-9 
  • Description:Common Name
  • Updatetime:Sep 30 2022 
more +
  • FOB Price:100 USD/kilogram 
  • Min.Order:10 Gram 
  • Purity:99% 
  • Supply Ability:1000 Month/Kilogram 
  • Formula:MgO 
  • Appearance:white powder 
  • Einecs:215-171-9 
  • Description:Product description
  • Updatetime:Sep 30 2022 
more +
  • FOB Price:7 USD/kg 
  • Min.Order:1000 KG 
  • Purity:96.0~100.5% 
  • Supply Ability:5000 Year/MT 
  • Formula:MgO 
  • Appearance:White powder, odorless, tasteless 
  • Einecs:215-171-9 
  • Description:Magnesium oxide CP, BP, USP, EP Chemical Name
  • Updatetime:Sep 30 2022 
more +
  • FOB Price:9 USD/kg 
  • Min.Order:1 KG 
  • Purity:99%+ 
  • Supply Ability:15000 Year/T 
  • Formula:MgO 
  • Appearance:powder 
  • Einecs:215-171-9 
  • Description:Product Description
  • Updatetime:Sep 29 2022 
more +
  • FOB Price:13 USD/kg 
  • Min.Order:1 KG 
  • Purity:99% 
  • Supply Ability:30 Month/MT 
  • Formula:MgO 
  • Appearance:white powder 
  • Einecs:215-171-9 
  • Description:Quick Details Classification: Pharmaceutical Intermediates Cas NO.:1309-48-4 Name:Magnesium oxide Formula:MgO
  • Updatetime:Sep 22 2022 
more +
  • FOB Price:20 USD/kg 
  • Min.Order:1 KG 
  • Purity:99% 
  • Supply Ability:5000 Year/KG 
  • Formula:MgO 
  • Appearance:powder 
  • Einecs:215-171-9 
  • Description:Whatsapp:+86 13043111536 Telegram Messenger:+86 13043111536 Wickr ME:rachelya Basic info.
  • Updatetime:Jul 25 2022 
more +
  • FOB Price:1 USD/kilogram 
  • Min.Order:10 Gram 
  • Purity:99 
  • Supply Ability:15 Month/Metric Ton 
  • Formula:MgO 
  • Appearance:white powder 
  • Einecs:215-171-9 
  • Description:seawatermagnesia;Sermag;slo369;slo469;Tanbase;MAGNESIUM OXIDE, NANOPOWDER;M
  • Updatetime:Jul 15 2022 
more +