ELECTRONIC SPACE PRODUCTS INTERNATIONAL

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MATERIAL SAFETY DATA SHEET

I            PRODUCT IDENTIFICATION

Trade Name:      Copper II Sulfide                                                                         CAS #:                               1317-40-4

Synonym:           Inorganic Sulfide                                                          Molecular Formula:        CuS

II           HAZARDOUS INGREDIENTS

TLV (Units): Not established                                                                                 Material %: Copper Sulfide 97 %

III         PHYSICAL DATA

Boiling Point:                   Decomposes @ 220 ^oC                                                Specific Gravity:              4.6

Vapor Density (air=1):    >1                                                                                 Vapor Pressure (20 ^oC):  No data

Solubility in H₂O:            Insoluble                                                                       Appearance and Odor:    Black powder

Freeze Point:                    Transition @ 103 ^oC                                                    Ionic Nature:                    No

Percent Volatile:              N/A

IV         FIRE AND EXPLOSION HAZARDS DATA

Flash Point (Method used): N/E                                                                           Autoignition Temperature: No Data

Extinguishing Media: DO NOT USE WATER. Use dry chemical extinguishing agents, dry sand, dry ground dolomite, carbon dioxide.

Special Fire Fighting: Wear NIOSH/MSHA approved self-contained breathing apparatus, flame and chemical resistant protective clothing, hat, gloves and boots. If without risk move material out of fire area.

Unusual Fire & Explosion: Fire hazard when exposed to flame or by spontaneous chemical reaction. Reacts with water, steam or acids to produce toxic and flammable vapors of hydrogen sulfide.

V           HEALTH HAZARD INFORMATION

Effects of Overexposure: Toxic by ingestion via the liberation of hydrogen sulfide, symptoms include vomiting, gastric pain and dizziness. Can cause skin and eye irritation. Inhalation can cause irritation to the respiratory tract.

EMERGENCY AND FIRST AID PROCEDURES: Remove from exposure.

EYES: Immediately flush with copious amounts of water for 15 minutes then seek prompt, competent medical attention.

SKIN: Brush material off exposed area, remove any contaminated clothing, flush area with running water for 15 minutes. If skin is burned seed prompt, competent medical attention.

INHALATION/INGESTION: Seek prompt, competent medical attention immediately.

VI         REACTIVITY DATA

Stability: Stable

Conditions to Avoid: Heating to decomposition emits toxic fumes of SOx. Avoid contact with water, steam or acids which will cause the production of toxic and flammable vapors of hydrogen sulfide.

Incompatibility (Material to Avoid): Cadmium chlorate, chlorates, chloric acid, hydrogen peroxide, magnesium, ammonium nitrate, potassium chlorate and water, zinc chlorate, powerful oxidizers.

Hazardous Decomposition Products: Hydrogen sulfide, copper I sulfate

Hazardous Polymerization: Will not occur.

VII        SPILL OR LEAK PROCEDURES

Steps to Be Taken in Case Material Is Released or Spilled: Wearing respiratory protection and protective clothing (see Section VIII), eliminate all sources of ignition, cover spill with vermiculite or sodium bicarbonate, collect into a plastic bag or wide mouthed glass container, close tightly and submit or retain for disposal.

Waste Disposal Method: In accordance with Local, State and Federal Regulations for proper disposal of inorganic sulfides.

VIII      SPECIAL PROTECTION INFORMATION

Respiratory Protection (Specify Type): NIOSH/MSHA approved high efficiency particulate respirator for ordinary use, self-contained breathing apparatus for emergency use.

Ventilation: Local Exhaust: Fumehood                                                Mechanical: Not adequate

Special: Glove bag or box with dry inert atmosphere.

Protective Gloves: Rubber                                                                      Eye Protection: Chemical safety goggles

Other Protective Equipment: Laboratory coat and apron, eye wash fountain capable of sustained flushing, safety drench shower, hygienic facilities for washing.

IX         SPECIAL PRECAUTIONS

Precautionary Labeling: DANGER! TOXIC! Do not ingest. WARNING! IRRITANT! Do not inhale. Avoid contact with skin, eyes and clothing. FLAMMABLE! Keep away from heat, sparks and open flame.

Other Handling and Storage Conditions: Store in cool dry place away from sources of moisture and powerful oxidizers. Wash thoroughly after handling. Keep container tightly closed. Use adequate ventilation.

Issued By:           S. Dierks

Dated:                  November 1995