Magnesium Silicide
SAFETY DATA SHEET
1 PRODUCT AND SUPPLIER IDENTIFICATION
Product Name: Magnesium Silicide
Formula: Mg2Si
Supplier: ESPI Metals
1050 Benson Way
Ashland, OR 97520
Telephone: 800-638-2581
Fax: 541-488-8313
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
Emergency: Infotrac 800-535-5053 (US) or 352-323-3500 (24 hour)
Recommended Uses: Scientific Research
2 HAZARDS IDENTIFICATION
GHS Classification (29 CFR 1910.1200): Substances and mixtures which, in contact with water, emit flammable gases, category 2.
GHS Label Elements:
Signal Word: Danger
Hazard Statements: H261 In contact with water releases flammable gas.
Precautionary Statements: P223 Do not allow contact with water, P231+P232 Handle and store contents under inert gas, protect from moisture, P280 Wear protective gloves/protective clothing/eye protection/face protection, P302+P335+P334 IF ON SKIN: Brush off loose particles from skin, and immerse in cool water, P370+P378 In case of fire: Use Class D dry chemical extinguishing agent for extinction, P402+P404 Store in a dry place. Store in a closed container, P501 Dispose of contents/container in accordance with local, state or federal regulations.
3 COMPOSITION/INFORMATION ON INGREDIENTS
Ingredient: Magnesium Silicide
CAS#: 22831-39-6
%: 100
EC#: 245-254-5
Common Names and Synonyms: Dimagnesium silicide.
4 FIRST AID MEASURES
General Measures: Remove patient from area of exposure.
INHALATION: Remove to fresh air, keep warm and quiet, give oxygen if breathing is difficult. Seek medical attention.
INGESTION: Rinse mouth with water. Do not induce vomiting. Seek medical attention. Never induce vomiting or give anything by mouth to an unconscious person.
SKIN: Remove contaminated clothing, brush material off skin, wash affected area with soap and water. Seek medical attention if symptoms persist.
EYES: Flush eyes with lukewarm water, including under upper and lower eyelids, for at least 15 minutes. Seek medical attention if symptoms persist.
Most Important Symptoms/Effects, Acute and Delayed: May cause irritation. See section 11 for more information.
Indication of Immediate Medical Attention and Special Treatment: No other relevant information available.
5 FIREFIGHTING MEASURES
Extinguishing Media: Use Class D dry powder extinguishing agent.
Unsuitable Extinguishing Media: Do not use water.
Specific Hazards Arising from the Material: May react with water under fire conditions liberating flammable gases. May emit toxic fumes under fire conditions.
Special Protective Equipment and Precautions for Firefighters: Full face, self-contained breathing apparatus and full protective clothing to prevent contact with skin and eyes.
6 ACCIDENTAL RELEASE MEASURES
Personal Precautions, Protective Equipment, and Emergency Procedures: Wear appropriate respiratory and protective equipment specified in section 8. Isolate spill area and provide ventilation. Avoid breathing dust or fume. Avoid contact with skin and eyes. Eliminate all sources of ignition. Avoid contact with water.
Methods and Materials for Containment and Cleaning Up: Avoid dust formation. Scoop up or vacuum using a vacuum equipped with a HEPA filter and place in a properly labeled closed container for further handling and disposal. Do not use water for clean-up.
Environmental Precautions: Do not flush to sewer, stream, or other bodies of water. Do not allow to enter drains or to be released to the environment.
7 HANDLING AND STORAGE
Precautions for Safe Handling: Handle in an enclosed, controlled process. Avoid contact with water/moisture or acids and air. Keep away from sources of ignition; no smoking. Avoid creating dust. Provide adequate ventilation if dusts are created. Avoid breathing dust or fumes. Avoid contact with skin and eyes. Wash thoroughly before eating or smoking. See section 8 for information on personal protection equipment.
Conditions for Safe Storage, Including Any Incompatibilities: Store in tightly-sealed containers, under dry inert gas if possible. Storage containers should be properly labeled and kept in a cool, dry, well-ventilated area. Protect from water and moisture. Do not store together with acids. See section 10 for more information on incompatible materials.
8 EXPOSURE CONTROLS AND PERSONAL PROTECTION
Exposure Limits: OSHA/PEL: ACGIH/TLV:
Magnesium Silicide No exposure limit established No exposure limit established
Appropriate Engineering Controls: Whenever possible the use of local exhaust ventilation or other engineering controls is the preferred method of controlling exposure to airborne dust and fume to meet established occupational exposure limits. Use good housekeeping and sanitation practices. Do not use tobacco or food in work area. Wash thoroughly before eating or smoking. Do not blow dust off clothing or skin with compressed air.
Individual Protection Measures, Such as Personal Protective Equipment:
Respiratory Protection: Wear a NIOSH/MSHA approved respirator when dusts or fumes are present.
Eye Protection: Safety glasses
Skin Protection: Wear impermeable gloves, protective work clothing as necessary.
9 PHYSICAL AND CHEMICAL PROPERTIES
Appearance:
Form: Powder
Color: Gray or black to blue
Odor: Not determined
Odor Threshold: Not determined
pH: N/A
Melting Point: 1102 oC
Boiling Point: No data
Flash Point: N/A
Evaporation Rate: N/A
Flammability: No data
Upper Flammable Limit: No data
Lower Flammable Limit: No data
Vapor Pressure: No data
Vapor Density: N/A
Relative Density (Specific Gravity): 1.99 g/cc
Solubility in H2O: Reacts
Partition Coefficient (n-octanol/water): Not determined
Autoignition Temperature: No data
Decomposition Temperature: No data
Viscosity: N/A
10 STABILITY AND REACTIVITY
Reactivity: No specific test data available.
Chemical Stability: Stable under recommended storage conditions.
Possibility of Hazardous Reactions: Exposure to water at elevated temperatures can generate highly flammable gases. Magnesium silicide will decompose in dilute acids to produce silane gas, which is spontaneously combustible on contact with air.
Conditions to Avoid: Heat, water/moisture and air.
Incompatible Materials: Acids, oxidizing agents, water/moisture.
Hazardous Decomposition Products: Magnesium oxides, silicon oxides, silane gas.
11 TOXICOLOGICAL INFORMATION
Likely Routes of Exposure: Inhalation, skin and eyes.
Symptoms of Exposure: May cause irritation.
Acute and Chronic Effects:
Magnesium Compounds: Inhalation of excessive concentrations of magnesium oxide fume may cause metal fume fever. Oral administration of magnesium salts may cause vomiting with few other effects unless, however evacuation fails, then mucosal irritation and absorption occur. Overexposure via oral, intravenous and intraperitoneal routes to magnesium (+2) salts may affect the central nervous, heart and respiratory systems.
Silicon Compounds: Silicon dioxide is chemically and biologically inert when ingested, however heavy exposure to freshly formed silica fume may cause an acute reaction similar to metal fume fever. Silicon carbide is considered to be a nuisance particulate. Chlorosilanes, considered non-corrosive in their dry state, may become corrosive when in contact with water or moisture of skin and mucous membranes.
Acute Toxicity: No data
Carcinogenicity: NTP: Not identified as carcinogenic IARC: 3 - Not classifiable as to its carcinogenicity to humans
To the best of our knowledge the chemical, physical and toxicological characteristics of the substance are not fully known.
12 ECOLOGICAL INFORMATION
Ecotoxicity: No data
Persistence and Degradability: No data
Bioaccumulative Potential: No data
Mobility in Soil: No data
Other Adverse Effects: Do not allow material to be released to the environment. No further relevant information available.
13 DISPOSAL CONSIDERATIONS
Waste Disposal Method:
Product: Dispose of in accordance with Federal, State and Local regulations.
Packaging: Dispose of in accordance with Federal, State and Local regulations.
14 TRANSPORT INFORMATION
UN Number: UN2624
UN Proper Shipping Name: Magnesium Silicide
Transport Hazard Class: 4.3
Packing Group: II
Marine Pollutant: No
15 REGULATORY INFORMATION
TSCA Listed: Yes
DSL Listed: No
Regulation (EC) No 1272/2008 (CLP): Substances and mixtures which, in contact with water, emit flammable gases, category 2.
WHMIS 2015 Classification: Substances and mixtures which, in contact with water, emit flammable gases, category 2.
HMIS Ratings: Health: 1 Flammability: 3 Physical: 2
NFPA Ratings: Health: 1 Flammability: 3 Instability: 2 Special Hazard: W
Chemical Safety Assessment: A chemical safety assessment has not been carried out.
16 OTHER INFORMATION
The information contained in this document is based on the state of our knowledge at the time of publication and is believed to be correct, but does not purport to be all inclusive and shall be used only as a guide. ESPI Metals 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. ESPI Metals shall not be held liable for any damages resulting from handling or from contact with the above product. Users should satisfy themselves that they have all current data relevant to their particular use.
Prepared by: ESPI Metals
Revised/Reviewed: November 2017