SPI Supplies Division|
|
Date Effective... February 17, 2007
(most recent revision)
Chemical Name/Synonyms:
Magnesium Oxide (MgO)
Chemical Family... Metal Oxide
Emergencies Contacting CHEMTREC 24 Hour Emergency
Use Only #'s.... Worldwide phone : 1-(703)-527-3887
Worldwide FAX : 1-(703)-741-6090
Toll-free phone : 1-(800)-424-9300 USA only
Product or Trade Name... SPI Magnesium Oxide Single Crystal Substrates
CAS #.................... 1309-48-4
Chemical Formula......... MgO
Formula Weight........... 40.30
NFPA
(National Fire Protection Association)
Rating (Scale 0-4) :
Not applicable
Boiling Point............ 760 mm Hg : 3600° C/6512° F
Coeff. of Water/Oil Dist. Not Applicable
pH (Liquids Only)........ Not Applicable
% Volatile By Weight..... N/A
% Volatile By Volume..... 3
Melting Point............ 5166° F/2852° C
Vapor Pressure........... mm Hg: Not Applicable
Vapor Density/Air is 1... Not Applicable
Solubility In Water...... Less than 0.1%
Appearance and Color..... Clear transparent solid; in powder form, it
becomes a white to gray looking free flowing
powder
Specific Gravity......... (H2O = 1): 3.60
Evaporation Rate......... (n-butyl acetate = 1): Zero
Odor..................... None
Flash Point.................... Non-flammable Flammable Limits in Air........ Flammable limit in air, % by vol. LEL (Lower Explosive Limit) : Not Applicable UEL (Upper Explosive Limit) : Not Applicable Fire Extinguishing Media: This material is non-combustible. Use appropriate extinguishing agent for surrounding fires. Do not use water to extinguish fires around operations involving molten metal, due to the potential for a steam explosion. Firefighting Procedure: Appropriate for the surrounding fire Fire and explosion hazards: This is a stable material and will not burn or ignite. Toxic Gases Produced: None
Stable: Yes Hazardous Polymerization: Does not occur Hazardous Decomposition Products: None identified Conditions to avoid: Air, dusting Materials to avoid: Incompatibilities are with strong acids, bromine trifluoride and trichloride, phosphorus pentachloride
Spill Response: Not applicable for solid wafer products. Disposal considerations: Should be done in accordance with all applicable federal, state, and local regulations.
Potential health effects (overview):
The material in either solid or alloy form is generally not considered
hazardous. However, if the process involves grinding, melting, cutting,
or any other process that causes a release of fumes, hazardous levels
of airborne particulates could be generated.
Primary routes of entry:
Inhalation, Skin contact
Human effects and symptoms of exposure:
Listed below are certain potential health hazards which apply to
the product in ground or powdered form:
Inhalation: Irritation of upper respiratory tract, leukocytosis
Eye contact: Irritation
Ingestion: None identified
Skin contact: Irritation
Skin absorption: None identified
Chronic effects: None identified
Threshold Limit Value: 10 mg/m3 of air (as Mg)
Short Term Exposure Limit: (STEL): Not established
Permissible Exposure Limit: (PEL): 15 mg/m3
Carcinogenicity: None identified
Reproductive Effects: None identified
Target organs: Respiratory system, lungs, eyes
Medical Conditions Aggravated by Exposure:
Respiratory system disease
Carcinogenic references:
Material is not listed in the Annual Report on Carcinogens as
prepared by the National Toxicology Program (NTP), as well as
the International Agency for Research on Cancer (IARC),
Monograph Series or OSHA.
TLV (Units as Mg): 10 mg/m3 of air
Component Weight % OSHA/PEL ACGIH/TLV
Magnesium oxide 99+% 15 mg/m3 10 mg/m3
SARA/Title III Hazard Categories and Lists:
Acute: Yes
Chronic: Yes
Flammability: No
Pressure: No
Reactivity: No
Extremely Hazardous Substance: No
CERCLA Hazardous Substance: No
SARA 313 Toxic Chemicals: No
TSCA: Yes
The following information is provided in the event the solid wafer is cut
and powder and/or dust should be generated:
First Aid for Eyes:
Dust or powder should be flushed from the eyes with running water
for 15 minutes. If irritation persists obtain medical assistance.
First Aid for Skin:
Skin cuts and abrasions can be treated by standard first aid.
Skin contamination with dust or powder can be removed with soap
and water. If irritation persists obtain medical assistance. Be
sure to remove any contaminated clothing.
First Aid for Inhalation:
Breathing difficulty, caused by inhalation of dust or fume
requires removal to fresh air. If breathing has stopped
perform artificial respiration and seek medical assistance
at once. If breathing is difficult, give oxygen. But prompt
action is essential!
First Aid for Ingestion:
Obtain medical assistance at once. If swallowed, do not induce
vomiting. If conscious, give large amounts of water.
In the solid form of a wafer, this material poses no special problems. Store metal in a dry area to extend shelf life. Do not store adjacent to strong acids or other items mentioned in "incompatibilities".
Eye Protection Requirements:
Safety glasses are recommended especially if powder is being created.
Skin Protection Requirements:
Protective gloves are recommended, to prevent mechanical
irritation. This is particularly true if powder or dust
is being generated.
Respiratory Protection:
Use an appropriate NIOSH approved respirator if airborne
dust concentrations exceed the PEL or TLV.
Other protective equipment:
Eye wash fountain should be readily available in areas of
use of handling especially if powder or dust is being created.
Exposure Limits:
Not established for product as a whole. Refer to Section
02 above.
Ventilation Requirements:
Local exhaust: Recommended, when cutting, grinding, or
melting or any other operation where dust or fumes are created.
Environmental Surveillance:
If the operation generates dust or fumes, exposure to airborne
materials should be determined by having air samples taken in
the employee breathing zone and work area.
No hazardous ingredients in this material.
DOT Shipping Name: Not regulated DOT Hazard Class: None Product RQ: None Technical Shipping Name: Metal alloy UN or NA number: None
OSHA Status: N/A TSCA Status: These products are pure magnesium oxide (MgO). RCRA Status: N/A SARA Title III: No hazardous substances. California Prop. 65: Proposition 65 requires manufacturers or distributors of consumer products into the State of California to provide a warning statement if the product contains ingredients for which the State has found to cause cancer, birth defects or other reproductive harm. If this product contains an ingredient listed by the State of California to cause cancer or reproductive toxicity, it will be listed below:
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