MATERIAL SAFETY DATA SHEET
Pure Tech Emergency Phone Numbers:
P.O. Box 1950 CHEMTREC: 800/424-9300
Brewster, New York 10509-8950 POISON CENTER: 800/562-8236
845/279-0900
Date of Last Revision: 12-4-
90
************************************************************************
***
SECTION 1
PRODUCT IDENTIFICATION
CHEMICAL NAME(S) AND SYNONYM(S): Silicon Nitride, FORMULA:
Si(3)N(4)
Trisilicon Tetranitirde
CHEMICAL FAMILY: Metal Nitride CHEM. ABSTRACT NO.: 12033-89-5
TSCA: Product is listed. CAL. MOLECULAR WEIGHT: 140.286
************************************************************************
***
SECTION 2
INGREDIENTS/SUMMARY OF HAZARDS
INGREDIENT(S) CAS # % TLV OSHA PEL
Silicon Nitride 12033-89-5 100 10mg/m3 10mg/m3 -- As Si
0.1mg/m3 -- As SiO(2)
************************************************************************
***
SECTION 3
PHYSICAL DATA
BOILING POINT (oC) : ND DENSITY (gm/cc): 3.44
VAPOR PRESSURE: NA % VOLATILE BY VOLUME: NA
REACTION WITH WATER: Exothermic EVAPORATION RATE: NA
oC):
SOLUBILITY WITH WATER: Insoluble MELTING POINT ( 1900
APPEARANCE/ODOR: Grayish white amorphous powder. Slight ammonia odor.
OTHER:
************************************************************************
***
SECTION 4
FIRE AND EXPLOSION HAZARD DATA
FLASHPOINT/METHOD: NA
AUTOIGNITION TEMP (oC): NA
FLAMMABILITY: Non-flammable
EXTINGUISHING MEDIA: ( ) Water ( ) Foam ( ) Class D Extinguisher
(x) Dry Chemical (x) CO(2)
( ) Other (specify):
SPECIAL FIRE FIGHTING PROCEDURES: Wear NIOSH/MSHA approved self-
contained
breathing apparatus and full protective clothing.
UNUSUAL FIRE AND EXPLOSION HAZARDS: Material may emit fumes if involved
in
a fire or on contact with acid or acidic fumes.
************************************************************************
******
SECTION 5
HEALTH HAZARD DATA
TOXICITY DATA: No data on this compound.
ROUTE(S) OF ENTRY: (x) Inhalation (x) Skin (x) Ingestion
EFFECTS OF OVEREXPOSURE (acute and chronic)
INHALATION: A respiratory irritant. May cause irritation to the mucous
membranes of the nose and throat.
DERMAL/EYE CONTACT: Irritation and inflammation possible. May cause
dermatitis.
OTHER (specify): ** See Attached Sheet **
MEDICAL CONDITIONS GENERALLY AGGRAVATED BY EXPOSURE: Respiratory
disorders.
CARCINOGENCITY: none NTP: no IARC MONOGRAPHS: no OSHA REGULATED: no
EMERGENCY AND FIRST AID PROCEDURES:
INGESTION: Induce vomiting. Seek Medical attention.
INHALATION: Remove victim to fresh air. Administer oxygen. Seek
medical attention.
SKIN: Brush material off skin. Wash affected area with soap and water.
EYES: Flush eyes with water for 15 mins. Seek medical attention.
************************************************************************
***
SECTION 6
REACTIVITY DATA
STABILITY: ( ) Stable (x) Unstable
CONDITIONS CONTRIBUTING TO UNSTABILITY: Air and moisture.
INCOMPATIBILITY (materials to avoid):
(x) Water ( ) Combustible materials (x) Strong bases
( ) Reducing Agents ( ) Strong oxidizing materials (x) Strong acids
( ) Other (specify):
HAZARDOUS DECOMPOSITION PRODUCTS: SiOx, NH3
HAZARDOUS POLYMERIZATION: ( ) May occur (x) Will not occur
CONDITIONS TO AVOID: Heat, air, water/moisture and incompatible
materials.
************************************************************************
****
SECTION 7
SPILL OR LEAK PROCEDURES
STEPS TO BE TAKEN IN CASE MATERIAL IS RELEASED OR SPILLED: Wearing full
protective clothing, isolate the area and insure proper ventilation.
Vacuum up spill and place in a container for proper disposal.
WASTE DISPOSAL METHOD: In accordance with regulations.
************************************************************************
***
SECTION 8
SPECIAL PROTECTIVE INFORMATION
RESPIRATORY PROTECTION: (Specify type) NIOSH/MSHA approved respirator
VENTILATION: LOCAL EXHAUST: Maintain exposure below TLV
MECHANICAL (General): Recommended
SPECIAL: Handle in a dry, inert, controlled atmosphere.
PROTECTIVE GLOVES: Neoprene
EYE PROTECTION: (x) Safety Glasses with Side Shields
( ) Chemical Workers Dust-Proof Goggles (under dusting
conditions)
( ) Gas-Tight Goggles or Equivalent
( ) Other (specify):
OTHER PROTECTIVE EQUIPMENT: Maintain sink, safety shower and eyewash
fountain in the work area. Wear full protective clothing at all times.
************************************************************************
***
SECTION 9
SPECIAL PRECAUTIONS AND TRANSPORTATION REGULATIONS
PRECAUTIONS TO BE TAKEN IN HANDLING AND STORING: Store in tightly
closed
containers in a cool, dry place. Wash hands and face thoroughly.
TRANSPORTATION REQUIREMENTS: No D.O.T. regulations classified.
DOT CLASS:
UN NUMBER:
IMCO CLASS:
OTHER: SPC, Corrosive.
ND = No Data Found NA = Not Applicable
The action of crystalline silica on the lungs results in the production
of a diffuse, modular fibrosis in which the parenchyma and the lymphatic
system are involved. This fibrosis is, to a certain extent, progressive
and may continue to increase for several years after exposure is
terminated. When the pulmonary reserve is sufficiently reduced, the
worker complains of shortness of breath or exertion. This is the first
and most common symptom in cases of uncomplicated silicosis. If severe,
it may incapacitate the worker for heavy or even light physical exertion
and in extreme cases, there may be shortness of breath even while at
rest.
The details of the toxicity of nitrides as a group are unknown.
However, many nitrides react with moisture to evolve NH3. This gas is
an irritant to the mucous membranes.
MATERIAL SAFETY DATA SHEET
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.
|