ELECTRONIC SPACE PRODUCTS INTERNATIONAL
1050 Benson Way, Ashland, OR 97520
Toll Free (800) 638-2581 * Fax (541) 488-8313
E-Mail: sales@espimetals.com
MATERIAL SAFETY DATA SHEET
I PRODUCT IDENTIFICATION
Trade Name: Magnesium Oxide Chemical Nature: Metal oxide
Synonym: Magnesia, calcined magnesite Formula: MgO
CAS #: 1309-48-4 Formula Weight: 40.30
II HAZARDOUS INGREDIENTS
Hazardous Component % OSHA/PEL ACGIH/TLV
Magnesium Oxide 0-100 15 mg/m3 10 mg/m3
SARA Title III: No
III PHYSICAL DATA
Boiling Point 760 mm Hg: 3600 oC Melting Point: 2852 oC
Specific Gravity: 3.60 Vapor Density: N/A
% Volatiles by Weight: N/A % Volatiles by Volume: 3
Appearance and Odor: White to gray powder, odorless Solubility in H2O: Slightly (<0.1%)
IV FIRE AND EXPLOSION HAZARDS DATA
Flash Point: N/A Method Used: Non-flammable
Explosive Limits: Lower: N/A Upper: N/A Autoignition Temperature: N/A
Extinguishing Media: Use extinguishing media suitable for surrounding materials and type of fire.
Special Fire Fighting Procedures: Firefighters must wear full face, self-contained breathing apparatus with full protective clothing.
Unusual Fire & Explosion Hazard: None known
V HEALTH HAZARD INFORMATION
Effects of Exposure: To the best of our knowledge the chemical, physical and toxicological properties of magnesium oxide have not been thoroughly investigated and reported. Tumorigenic effects have been observed on tests with laboratory animals.
Inhalation: Irritation of upper respiratory tract, leukocytosis. Inhalation of magnesium oxide may cause metal fume fever.
Ingestion: None identified
Skin: May cause irritation.
Eye: May cause irritation.
Target Organs: Respiratory system, lungs, eyes
Medical Conditions Generally Aggravated by Exposure: Respiratory system disease.
Carcinogenicity: NTP: No IARC: No OSHA: No
Primary Routes of Entry: Inhalation, ingestion, eye contact, skin contact
EMERGENCY AND FIRST AID PROCEDURES:
INHALATION: If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Prompt action is essential.
INGESTION: CALL A PHYSICIAN. If swallowed, do NOT induce vomiting. If conscious, give large amounts of water.
SKIN: Remove any contaminated clothing, brush material off of skin, flush with running water, wash carefully with soap and water.
EYES: Flush with copious amounts of water for 15 minutes.
VI REACTIVITY DATA
Stability: Stable
Conditions To Avoid: Air, dusting, water/moisture.
Incompatibility (Materials to Avoid): Strong acids, bromine trifluoride and trichloride, phosphorus pentachloride, interhalogens, reducing agents. Reacts violently with interhalogens.
Hazardous Decomposition Products: None known
Hazardous Polymerization: Will not occur
VII SPILL OR LEAK PROCEDURES
Steps to be Taken in Case Material is Released or Spilled: Wear self-contained breathing apparatus and full protective clothing. With clean shovel, carefully place material into clean, dry container and cover, remove from area. Flush spill area with water.
Waste Disposal Method: In accordance with Local, State and Federal Waste Disposal Regulations.
VIII SPECIAL PROTECTION INFORMATION
Respiratory Protection (Specify Type): Respiratory protection required if airborne concentration exceeds TLV. At concentrations up to 500 ppm, a high-efficiency particulate respirator is recommended. Above this level, a self-contained breathing apparatus is advised.
Ventilation: Use general or local exhaust ventilation to meet TLV requirements.
Protective Gloves: Neoprene gloves
Eye Protection: Safety Goggles
Other Protective Equipment: Normal Lab Wear
IX SPECIAL PRECAUTIONS
Precautions to Be Taken in Handling and Storage: Wash thoroughly after handling. Keep container tightly closed. Store away form water/moisture. Do not store together with acids.
Other Precautions: Do not get in eyes, on skin or clothing. Do not breathe dust, vapor, mist, or gas.
The above information is believed to be correct, but does not purport to be all inclusive and shall be used only as a guide. ESPI shall not be held liable for any damage resulting from handling or from contact with the above product.
Issued by: S. Dierks
Date: June 2003