MATERIAL SAFETY DATA SHEET

I. PRODUCT IDENTIFICATION

Manufacturer/Supplier:

ESPI Metals

1050 Benson Way, Ashland, OR 97520

Toll Free (800) 638-2581 * Fax (541) 488-8313

E-Mail: sales@espimetals.com

Trade Name:                    Tin Sulfide

Synonym:                          Tin IV Sulfide

Chemical Nature:             Metal sulfide

Formula:                           SnS₂

Molecular Weight:           182.81

CAS #:                              1315-01-1

II. HAZARDOUS INGREDIENTS

Hazardous Component:  Tin Sulfide

%:                                     0-100

OSHA PEL:                     2 mg(Sn)/m³

ACGIH TLV:                   2 mg(Sn)/m³

HMIS Ratings (0-4): Health: 1     Flammability: 0           Reactivity: 0

HMIS Protective Equipment: Glasses, gloves, apron, dust mask

III. PHYSICAL DATA

Boiling Point:                   N/E or N/A

Melting Point:                  600.0 ^oC

Specific Gravity:              4.5 g/cc

Vapor Pressure:               N/A

Vapor Density:                 N/A

Solubility in H₂O:            Insoluble

Appearance and Odor:    Gold-yellow powder, no odor.

% Volatiles:                      N/E or N/A

IV. FIRE AND EXPLOSION HAZARDS DATA

Flash Point: N/E or N/A

Autoignition Temperature: N/E or N/A

Explosive Limits: Lower: N/A      Upper: N/A

Extinguishing Media: Use suitable extinguishing media for surrounding materials and type of fire.

Special Fire Fighting Procedures: Firefighters must wear full face, self-contained breathing apparatus with full protective clothing to prevent contact with skin and eyes. Fumes from fire are hazardous. Isolate runoff to prevent environmental pollution.

Unusual Fire & Explosion Hazard: When heated to decomposition, tin sulfide may emit toxic fumes of SOx. Contact with strong acids may liberate hydrogen sulfide which may form explosive mixtures with air.

V. HEALTH HAZARD INFORMATION

Effects of Exposure:

To the best of our knowledge the chemical, physical and toxicological properties of tin sulfide have not been thoroughly investigated and recorded.

Tin compounds have variable toxicity. Elemental tin and organic compounds have low toxicity and are poorly absorbed when ingested. Some inorganic tin salts are irritating or can liberate toxic fumes on decomposition. Inhalation of tin dusts over a period of years may cause pneumoconiosis (Sax, Dangerous Properties of industrial Materials, eighth edition).

Sulfides of the heavy metals are generally insoluble and hence have little toxic action except through the liberation of hydrogen sulfide (Sax, Dangerous Properties of Industrial Materials, eighth edition).

Acute Effects:

Inhalation: May cause irritation to the nose and throat.

Ingestion: May cause gastrointestinal irritation.

Skin: May cause irritation.

Eye: May cause irritation.

Chronic Effects:

Inhalation: Prolonged or repeated exposure may cause pneumoconiosis.

Ingestion: No chronic health effects recorded.

Skin: No chronic health effects recorded.

Eye: No chronic health effects recorded.

Medical Conditions Generally Aggravated by Exposure: Pre-existing respiratory disorders.

Target Organs: May effect the eyes, skin and respiratory system.

Routes of Entry: Inhalation, and ingestion

Carcinogenicity: NTP: No           IARC: No          OSHA: No

EMERGENCY AND FIRST AID PROCEDURES:

INHALATION: Remove victim to fresh air, keep warm and quiet, give oxygen if breathing is difficult and seek medical attention.

INGESTION: Give 1-2 glasses of milk or water and induce vomiting. Seek medical attention. Never induce vomiting or give anything by mouth to an unconscious person.

SKIN: Remove contaminated clothing, brush material off skin, wash affected area with mild soap and water, seek medical attention if symptoms persist.

EYES: Flush with lukewarm water, lifting upper and lower eyelids, for at least 15 minutes. Seek medical attention.

VI. REACTIVITY DATA

Stability: Stable

Conditions to Avoid (Instability): None

Incompatibility (Material to Avoid): Strong acids and bases.

Hazardous Decomposition Products: Oxides of sulfur and hydrogen sulfide.

Hazardous Polymerization: Will not Occur

VII. SPILL OR LEAK PROCEDURES

Steps to Be Taken in Case Material Is Released or Spilled: Wear appropriate respiratory and protective equipment specified in Section VIII- Special Protection Information. Isolate spill area and provide ventilation. Vacuum up spill using a high efficiency particulate absolute (HEPA) air filter and place in a closed container for proper disposal. Take care not to raise dust.

Waste Disposal Method: In accordance with Local, State and Federal Waste Disposal Regulations.

VIII. SPECIAL PROTECTION INFORMATION

Respiratory Protection (Specify Type): NIOSH approved dust respirator.

Ventilation: Use local exhaust to maintain concentration at or below the PEL, TLV. General exhaust is recommended

Protective Gloves: Rubber

Eye Protection: Safety Glasses

Other Protective Clothing or Equipment: Protective gear suitable to prevent contamination.

IX. ADDITIONAL COMMENTS

Precautions to Be Taken in Handling and Storage: Store in a cool, dry area. Store in a tightly sealed container. Wash thoroughly after handling.

Work Practices: Implement engineering and work practice controls to reduce and maintain concentration of exposure at low levels. Use good housekeeping and sanitation practices. Do not use tobacco or food in work area. Wash thoroughly before eating and smoking. Do not blow dust off clothing or skin with compressed air.

DOT Regulations:

Hazard Class:                   None

The above information is believed to be correct, but does not purport to be all inclusive and shall be used only as a guide. ESPI shall not be held liable for any damage resulting from handling or from contact with the above product.

Prepared by:        S. Dierks

Dated:                  July 2006