1 Identification of substance:

        Trade name: Silicon nitride

        Stock number: SN4201,SN53490

    Manufacturer/Supplier:
Sun Innovations,Inc.
43241 Osgood RD.
Fremont, CA 94539

  2 Composition/Data on components:

    Chemical characterization:
           Description: (CAS#) 
            Silicon nitride (CAS# 12033-89-5), 96% 

    Identification number(s):

    EINECS Number: 234-796-8

  3 Hazards identification

    Hazard description:  Not applicable

    Information pertaining to particular dangers for man and environment
Not applicable 

  4 First aid measures

    After inhalation
Supply fresh air. If required, provide artificial respiration. Keep patient warm. 
Seek immediate medical advice. 

    After skin contact
Immediately wash with water and soap and rinse thoroughly. 
Seek immediate medical advice. 

    After eye contact
Rinse opened eye for several minutes under running water. Then consult a doctor. 

    After swallowing Seek medical treatment.

  5 Fire fighting measures

    Suitable extinguishing agents
Product is not flammable. Use fire fighting measures that suit the surrounding fire. 

    Special hazards caused by the material, its products of combustion or
  resulting gases:
In case of fire, the following can be released: 
Nitrogen oxides (NOx) 

    Protective equipment:
Wear self-contained respirator. 
Wear fully protective impervious suit. 

  6 Accidental release measures

    Person-related safety precautions:
Wear protective equipment. Keep unprotected persons away. 
Ensure adequate ventilation 

    Measures for environmental protection:
Do not allow material to be released to the environment without proper governmental permits. 

    Measures for cleaning/collecting: Pick up mechanically.

    Additional information:
See Section 7 for information on safe handling 
See Section 8 for information on personal protection equipment. 
See Section 13 for disposal information. 

  7 Handling and storage

    Handling

    Information for safe handling:
Keep container tightly sealed. 
Store in cool, dry place in tightly closed containers. 
No special precautions are necessary if used correctly. 

    Information about protection against explosions and fires:
The product is not flammable 

    Storage

    Requirements to be met by storerooms and receptacles:
No special requirements. 

    Information about storage in one common storage facility: None known.

    Further information about storage conditions:
Keep container tightly sealed. 
Store in cool, dry conditions in well sealed containers. 

  8 Exposure controls and personal protection

    Additional information about design of technical systems:
Properly operating chemical fume hood designed for hazardous chemicals and having an average face velocity of at least 100 feet per minute. 
Components with limit values that require monitoring at the workplace: 
Not required. 

    Additional information: No data

    Personal protective equipment

    General protective and hygienic measures
The usual precautionary measures for handling chemicals should be followed. 
Keep away from foodstuffs, beverages and feed. 
Remove all soiled and contaminated clothing immediately. 
Wash hands before breaks and at the end of work. 

    Breathing equipment:
Use suitable respirator when high concentrations are present. 

    Protection of hands: Impervious gloves

    Eye protection: Safety glasses

    Body protection: Protective work clothing.

  9 Physical and chemical properties:

    Form: Powder

    Color: White

    Odor: Odorless
 

                                         Value/Range  Unit    Method 
 

    Change in condition

    Melting point/Melting range:                  1900 ^oC       (subl)

    Boiling point/Boiling range:       Not determined

    Sublimation temperature / start:   Not determined

    Flash point:                       Not applicable

    Flammability (solid, gaseous)      Product is not flammable.

    Ignition temperature:              Not determined

    Decomposition temperature:         Not determined

    Danger of explosion:
Product does not present an explosion hazard. 

    Explosion limits:

    Lower:                             Not determined

    Upper:                             Not determined

    Vapor pressure:                    Not determined

    Density:   at   20 ^oC             3.4 g/cm³

    Solubility in / Miscibility with

    Water:                             Insoluble

 10 Stability and reactivity

    Thermal decomposition / conditions to be avoided:
Decomposition will not occur if used and stored according to specifications. 

    Materials to be avoided: None known.

    Dangerous reactions No dangerous reactions known

    Dangerous products of decomposition: Nitrogen oxides

 11 Toxicological information

    Acute toxicity:

    Primary irritant effect:

    on the skin: May cause irritation

    on the eye: May cause irritation

    Sensitization: No sensitizing effects known.

    Subacute to chronic toxicity:
Inorganic silicon compounds may be acute inhalation irritants. Prolonged inhalation may cause pulmonary fibrosis known as silicosis. 

    Additional toxicological information:
To the best of our knowledge the acute and chronic toxicity of this substance is not fully known. 
No classification data on carcinogenic properties of this material is available from the EPA, IARC, NTP, OSHA or ACGIH. 

 12 Ecological information:

    General notes:
Do not allow material to be released to the environment without proper governmental permits. 

 13 Disposal considerations

    Product:

    Recommendation
Consult state, local or national regulations for proper disposal. 

    Uncleaned packagings:

    Recommendation:
Disposal must be made according to official regulations. 

 14 Transport information

Not a hazardous material for transportation. 

    DOT regulations:

    Hazard class:             None

    Land transport ADR/RID  (cross-border)

    ADR/RID class:                None

    Maritime transport IMDG:

    IMDG Class:               None

    Air transport ICAO-TI and IATA-DGR:

    ICAO/IATA Class:          None

    Transport/Additional information:
Not dangerous according to the above specifications. 

 15 Regulations

    Product related hazard informations:
Observe the general safety regulations when handling chemicals 

    National regulations
All components of this product are listed in the U.S. Environmental Protection Agency Toxic Substances Control Act Chemical Substance Inventory. 

    Information about limitation of use:
For use only by technically qualified individuals. 

 16 Other information:

Employers should use this information only as a supplement to other information gathered by them, and should make independent judgement of suitability of this information to ensure proper use and protect the health and safety of employees.  This information is furnished without warranty, and any use of the product not in conformance with this Material Safety Data Sheet, or in combination with any other product or process, is the responsibility of the user.