Name:
Magnesium Oxide
Synonym:
Magnesia
CAS:
1309-48-4
Section 1 - Chemical Product
MSDS Name:Magnesium Oxide
Synonym:Magnesia
Synonym:Magnesia
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 1309-48-4 | Magnesium oxide | >95 | 215-171-9 |
| Hazard Symbols: None Listed. Risk Phrases: None Listed. |
Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Hygroscopic (absorbs moisture from the air).
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
Dust may cause mechanical irritation.
Ingestion:
No hazard expected in normal industrial use.
Inhalation:
Inhalation of fumes may cause metal fume fever, which is characterized by flu-like symptoms with metallic taste, fever, chills, cough, weakness, chest pain, muscle pain and increased white blood cell count. Inhalation of dust may cause irritation of the nose and throat.
Chronic:
No information found.
Hygroscopic (absorbs moisture from the air).
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
Dust may cause mechanical irritation.
Ingestion:
No hazard expected in normal industrial use.
Inhalation:
Inhalation of fumes may cause metal fume fever, which is characterized by flu-like symptoms with metallic taste, fever, chills, cough, weakness, chest pain, muscle pain and increased white blood cell count. Inhalation of dust may cause irritation of the nose and throat.
Chronic:
No information found.
Section 4 - FIRST AID MEASURES
Eyes: Gently lift eyelids and flush continuously with water. If irritation develops, get medical aid.
Skin:
In case of contact, flush skin with plenty of water. Remove contaminated clothing and shoes. Get medical aid if irritation develops and persists. Wash clothing before reuse.
Ingestion:
If swallowed, do not induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person. Get medical aid.
Inhalation:
If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Skin:
In case of contact, flush skin with plenty of water. Remove contaminated clothing and shoes. Get medical aid if irritation develops and persists. Wash clothing before reuse.
Ingestion:
If swallowed, do not induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person. Get medical aid.
Inhalation:
If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Substance is noncombustible. Magnesium oxide, as a fume, is produced when magnesium is burned in high-temperature processes or exposed to fire conditions.
Extinguishing Media:
Use extinguishing media most appropriate for the surrounding fire.
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Substance is noncombustible. Magnesium oxide, as a fume, is produced when magnesium is burned in high-temperature processes or exposed to fire conditions.
Extinguishing Media:
Use extinguishing media most appropriate for the surrounding fire.
Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions. Provide ventilation.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions. Provide ventilation.
Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Use with adequate ventilation. Avoid breathing dust and fume.
Storage:
Store in a cool, dry place. Keep away from strong acids. Store protected from moisture.
Wash thoroughly after handling. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Use with adequate ventilation. Avoid breathing dust and fume.
Storage:
Store in a cool, dry place. Keep away from strong acids. Store protected from moisture.
Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 1309-48-4: United Kingdom, WEL - TWA: 10 mg/m3 TWA (inhalable dust, as Mg); mg/m3 TWA (fume and respirable dust, as United Kingdom, WEL - STEL: 30 mg/m3 STEL (inhalable dust, as Mg) mg/m3 STEL (fume and respirable dust, United States OSHA: 15 mg/m3 TWA (total particulate) Belgium - TWA: 10 mg/m3 VLE (fumes) France - VME: 10 mg/m3 VME (fume) Malaysia: 10 mg/m3 TWA (fume) Netherlands: 10 mg/m3 MAC (smoke, as Mg) Russia: 5 mg/m3 TWA Spain: 10 mg/m3 VLA-ED (dust and fume) Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Glove protection is not normally required.
Clothing:
Wear appropriate protective clothing to minimize contact with skin.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 1309-48-4: United Kingdom, WEL - TWA: 10 mg/m3 TWA (inhalable dust, as Mg); mg/m3 TWA (fume and respirable dust, as United Kingdom, WEL - STEL: 30 mg/m3 STEL (inhalable dust, as Mg) mg/m3 STEL (fume and respirable dust, United States OSHA: 15 mg/m3 TWA (total particulate) Belgium - TWA: 10 mg/m3 VLE (fumes) France - VME: 10 mg/m3 VME (fume) Malaysia: 10 mg/m3 TWA (fume) Netherlands: 10 mg/m3 MAC (smoke, as Mg) Russia: 5 mg/m3 TWA Spain: 10 mg/m3 VLA-ED (dust and fume) Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Glove protection is not normally required.
Clothing:
Wear appropriate protective clothing to minimize contact with skin.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Powder
Color: white
Odor: odorless
pH: 10.3 (saturated aq soln)
Vapor Pressure: 0 mm Hg @ 25 deg C
Viscosity: Not available.
Boiling Point: 3600 deg C
Freezing/Melting Point: 2800 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: Very slightly .0086g/100ml
Specific Gravity/Density: 3.58
Molecular Formula: MgO
Molecular Weight: 40.30
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable at room temperature in closed containers under normal storage and handling conditions. Absorbs carbon dioxide from the air.
Hygroscopic: absorbs moisture or water from the air.
Conditions to Avoid:
Dust generation, moist air, prolonged exposure to air.
Incompatibilities with Other Materials:
Strong acids, interhalogens.
Hazardous Decomposition Products:
None.
Hazardous Polymerization: Will not occur.
Stable at room temperature in closed containers under normal storage and handling conditions. Absorbs carbon dioxide from the air.
Hygroscopic: absorbs moisture or water from the air.
Conditions to Avoid:
Dust generation, moist air, prolonged exposure to air.
Incompatibilities with Other Materials:
Strong acids, interhalogens.
Hazardous Decomposition Products:
None.
Hazardous Polymerization: Will not occur.
Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 1309-48-4: OM3850000 LD50/LC50:
Not available.
Carcinogenicity:
Magnesium oxide - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
CAS# 1309-48-4: OM3850000 LD50/LC50:
Not available.
Carcinogenicity:
Magnesium oxide - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
Section 12 - ECOLOGICAL INFORMATION
Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.
Section 14 - TRANSPORT INFORMATION
IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.
Section 15 - REGULATORY INFORMATION
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 1309-48-4: 1
Canada
CAS# 1309-48-4 is listed on Canadas DSL List.
CAS# 1309-48-4 is listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 1309-48-4 is listed on the TSCA inventory.
