1 Identification of substance:   Product details: Trade name: Gallium sulfide Manufacturer/Supplier: Institute of Solid State Physics,  Russian Academy of Sciences,  Laboratory of Physical-Chemical Basis of Crystallization LPCBC).        Chernogolovka, Moscow district, 142432 Russia.        Phone:+7-(496)-522-2074        Fax:+7-(496)-522-4691        E-mail: lpcbc82@issp.ac.ru

2 Hazards identification   Hazard description: T Toxic Information pertaining to particular dangers for man and environment R 23/25 Toxic by inhalation and if swallowed.  R 33    Danger of cumulative effects.

3 First aid measures   General information Immediately remove any clothing soiled by the product.  Remove breathing apparatus only after contaminated clothing has been completely removed.  In case of irregular breathing or respiratory arrest provide artificial respiration.  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 Do not induce vomiting; immediately call for medical help.  Seek immediate medical advice.

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

5 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: Dispose contaminated material as waste.  Ensure adequate ventilation.

6 Handling and storage   Handling Information for safe handling: Keep container tightly sealed.  Store in cool, dry place in tightly closed containers.  Ensure good ventilation at the workplace.  Open and handle container with care.  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: Do not store together with acids.  Further information about storage conditions: Keep container tightly sealed.  Store in cool, dry conditions in well sealed containers.  Store under lock and key and with access restricted to technical experts or their assistants only.

7 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:  Sulfur and sulfur compounds    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.  Store protective clothing separately.  Breathing equipment: Use suitable respirator when high concentrations are present.  Protection of hands: Impervious gloves Eye protection: Safety glasses Body protection: Protective work clothing.

8 Physical and chemical properties:     Form: Crystals, Single crystals, Chunks Color: Yellow Odor: Not determined                                        Value/Range  Unit    Method    Change in condition Melting point/Melting range:              965 ° C Boiling point/Boiling range:       Not determined Sublimation temperature / start:   Not determined Flash point:                       Not applicable Ignition temperature:              Not determined Decomposition temperature:         Not determined Danger of explosion: Product does not present an explosion hazard.  Vapor pressure:                    Not determined Density:    at   25 ° C            3.86 g/cm3 Solubility in / Miscibility with Water:                             Not soluble

9 Stability and reactivity   Thermal decomposition / conditions to be avoided: Decomposition will not occur if used and stored according to specifications.  Materials to be avoided: Acids Dangerous reactions No dangerous reactions known

10 Toxicological information   Acute toxicity: Primary irritant effect: on the skin: Irritant to skin and mucous membranes. on the eye: Irritating effect. Sensitization: No sensitizing effects known. Subacute to chronic toxicity: Gallium and gallium compounds may cause metallic taste, dermatitis and depression of the bone marrow function.  Large doses may cause hemorrhagic nephritis.  Additional toxicological information: To the best of our knowledge the acute and chronic toxicity of this substance is not fully known.  EPA-D: Not classifiable as to human carcinogenicity: inadequate human and animal evidence of carcinogenicity or no data are available.  IARC-3: Not classifiable as to carcinogenicity to humans.  NTP-2: Reasonably anticipated to be a carcinogen: limited evidence from studies in humans or sufficient evidence from studies in experimental animals.

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

12 Disposal considerations   Product: Recommendation Consult state, local or national regulations for proper disposal.  Uncleaned packagings: Recommendation: Disposal must be made according to official regulations.

13 Transport information     DOT regulations: Hazard class:             6.1 Identification number:    UN3283 Packing group:            III Proper shipping name (technical name): Sulfur compound, n.o.s., gallium sulfide Land transport ADR/RID  (cross-border) ADR/RID class:            6.1 Poisonous substances Item:                     55c Danger code (Kemler):     60 UN-Number:                3283 Description of goods:     Sulfur compound, n.o.s., gallium sulfide Maritime transport IMDG: IMDG Class:               6.1 UN Number:                3283 Packaging group:          III Proper shipping name:     Sulfur compound, n.o.s., gallium sulfide Air transport ICAO-TI and IATA-DGR: ICAO/IATA Class:          6.1 UN/ID Number:             3283 Packaging group:          III Proper shipping name:     Sulfur compound, n.o.s., gallium sulfide

14 Regulations   Product related hazard informations: Hazard symbols: T Toxic Risk phrases: 23/25 Toxic by inhalation and if swallowed.  33    Danger of cumulative effects.  Safety phrases: 20/21 When using do not eat, drink or smoke.  28    After contact with skin, wash immediately with plenty of water  45    In case of accident or if you feel unwell, seek medical advice immediately.  Information about limitation of use: For use only by technically qualified individuals.

15 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.    Department issuing MSDS: LPCBC ISSP Rus. Acad. Sci.