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CAS Number: 22831-39-6
Product Catalog

93-1293
Magnesium › Magnesium silicide (99.5%-Mg) (C < 1%)
CAS Number: 22831-39-6
MDL Number: MFCD00016202
Molecular Formula: Mg2Si
Molecular Weight: 76.71
Chemical Formula: Mg2Si
Color and Form: -20 mesh gray pwdr.
Note:  

Stability: moisture sensitive

Safety: Hazardous

Physical Characteristics: melting point 1102°C, density 1.94

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Download This MSDS
SECTION 1: Product Identification
Chemical Name: Magnesium silicide (99.5%-Mg)(C < 1%)
Product Number: 93-1293
CAS Registry Number: 22831-39-6
Formula: Mg2Si
EINECS Number: 245-254-5
Chemical Family: metal silicide
Synonym: Dimagnesium silicide
SECTION 2: Composition and Information on Ingredients
Ingredient CAS Number Percent ACGIH (TWA) OSHA (PEL)
Title Compound 22831-39-6 100 10mg(Si)/m3 10mg(Si)/m3
SECTION 3: Hazards Identification
Emergency Overview: Irritating to skin, eyes and mucous membranes.
Primary Routes of Exposure: Ingestion, eyes
Eye Contact: Dust is irritating to the eyes
Skin Contact: Causes mild irritation of the skin.
Inhalation: Irritating to the nose, mucous membranes and respiratory tract.
Ingestion: No specific information is available on the physiological effects of ingestion. Causes irritation of the digestive tract.
Acute Health Effects: Irritating to skin, eyes and respiratory tract.
Chronic Health Effects: No information available on long-term chronic effects.
NTP: No
IARC: No
OSHA: No
SECTION 4: First Aid Measures
Eye Exposure: Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need assistance in keeping their eye lids open. Get immediate medical attention.
Skin Exposure: Wash the affected area immediately with water. Remove contaminated clothing if necessary. Seek medical assistance if irritation persists.
Inhalation: Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance.
Ingestion: Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce vomiting only if directed by medical personnel.
SECTION 5: Fire Fighting Measures
Flash Point: no data
Autoignition Temperature: no data
Explosion Limits: no data
Extinguishing Medium: sand, CO2, or dry powder extinguisher. Use no water.
Special Fire Fighting Procedures: Do not use water. Fire fighters should be equipped with a NIOSH approved positive pressure self- contained breathing apparatus and full protective clothing.
Hazardous Combustion and Decomposion Products: If involved in a fire this material may emit pyrophoric silane gas.
Unusual Fire or Explosion Hazards: Flammable solid. Dust may form explosive mixtures with air. Evolves flammable hydrogen or silane gas with water.
SECTION 6: Accidental Release Measures
Spill and Leak Procedures: In the case of a spill, do not raise dust. The material should be covered with dry soda ash, limestone, or sand. Place in open container. Flammable hydrogen evolution may occur if wet.
SECTION 7: Handling and Storage
Handling and Storage: Store in a tightly sealed container in a cool dry place. Use good housekeeping practice to avoid accumulation of spilled dust, a fire hazard.
SECTION 8: Exposure Controls and Personal Protection
Eye Protection: Always wear approved safety glasses when handling a chemical substance in the laboratory.
Skin Protection: Wear protective clothing and gloves. Consult with glove manufacturer to determine the proper type of glove.
Ventilation: Material may form a fine dust. If possible, handle the material in an efficient fume hood.
Respirator: If ventilation is not available a respirator should be worn. The use of respirators requires a Respirator Protection Program to be in compliance with 29 CFR 1910.134.
Additional Protection: No additional protection required.
SECTION 9: Physical and Chemical Properties
Color and Form: -20 mesh gray powder
Molecular Weight: 76.71
Melting Point: 1102°C
Boiling Point: no data
Vapor Pressure: not applicable
Specific Gravity: 1.94
Odor: none
Solubility in Water: reacts with water
SECTION 10: Stability and Reactivity
Stability: moisture sensitive
Hazardous Polymerization: no hazardous polymerization
Conditions to Avoid: Contact of fine dust with water or mineral acids or strong oxidizing agents.
Incompatibility: water, mineral acids
Decomposition Products: silica dust and magnesia
SECTION 11: Toxicological Information
RTECS Data: No information available in the RTECS files.
Carcinogenic Effects: No data
Mutagenic Effects: No data
Tetratogenic Effects: No data
SECTION 12: Ecological Information
Ecological Information: No information available
SECTION 13: Disposal Considerations
Disposal: Dispose of according to local, state and federal regulations.
SECTION 14: Transportation
Shipping Name (CFR): Magnesium silicide
Hazard Class (CFR): 4.3
Additional Hazard Class (CFR): NA
Packaging Group (CFR): II
UN ID Number (CFR): UN# 2624
Shipping Name (IATA): Magnesium silicide
Hazard Class (IATA): 4.3
Additional Hazard Class (IATA): NA
Packaging Group (IATA): II
UN ID Number (IATA): UN# 2624
SECTION 15: Regulatory Information
TSCA: Listed in the TSCA inventory.
SARA (Title 313): Title compound not listed.
Second Ingredient: None
Third Ingredient: None
SECTION 16: Other Information
Disclaimer: The information herein is believed to be accurate and reliable as of the date compiled. However, Strem Chemicals, Inc. makes no representation, warranty, or guarantee of any kind with respect to the information contained in this document or any use of the product based on this information.
Preparation Date: 6/17/2004
Revision Date: 9/07/2011

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