SE2799 Gallium (II) Selenide (GaSe) Powder (CAS 12024-11-2)

SECTION 1. IDENTIFICATION

Product Name: Gallium(II) Selenide

CAS #: 12024-11-2

Relevant identified uses of the substance: Scientific research and development

Supplier details:

Stanford Advanced Materials

E-mail: sales@samaterials.com

Tel: (949) 407-8904

Address: 23661 Birtcher Dr., Lake Forest, CA 92630 U.S.A.

SECTION 2. HAZARDS IDENTIFICATION

Classification of the substance or mixture

Classification according to Regulation (EC) No 1272/2008:

GHS06: Skull and crossbones

GHS08: Health hazard

Acute Tox. 2 H300 Fatal if swallowed.

Acute Tox. 2 H330 Fatal if inhaled.

STOT RE 2 H373 May cause damage to the central nervous system, the liver and the digestive

system

through prolonged or repeated exposure. Route of exposure: Oral, Inhalative.

Classification according to Directive 67/548/EEC or Directive 1999/45/EC:

T; Toxic

N; Dangerous for the environment

R23/25: Toxic by inhalation and if swallowed.

R50/53: Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic

environment.

R33: Danger of cumulative effects.

Information concerning particular hazards for human and environment: N/A

Hazards not otherwise classified: No data available

Label elements

Labeling according to Regulation (EC) No 1272/2008The substance is classified and labeled according to the CLP regulation.

Hazard:

GHS06, GHS08

Signal word - Danger

Hazard statements:

H300+H330 Fatal if swallowed or if inhaled.

H373 May cause damage to the central nervous system, the liver and the digestive system

through prolonged or repeated exposure. Route of exposure: Oral, Inhalative.

Precautionary statements:

P260 Do not breathe dust/fume/gas/mist/vapors/spray.

P284 [In case of inadequate ventilation] wear respiratory protection.

P301+P310 IF SWALLOWED: Immediately call a POISON CENTER/ doctor/...

P320 Specific treatment is urgent (see on this label).

P405 Store locked up.

P501 Dispose of contents/container in accordance with local/regional/national/international

regulations.

WHMIS classification:

D1A Very toxic material causing immediate and serious toxic effects

Classification system

HMIS ratings (scale 0-4)

(Hazardous Materials Identification System):

HEALTH 2 Health (acute effects) = 2

FIRE 0 Flammability = 0

REACTIVITY 1 Physical Hazard = 1

Other hazards

Results of PBT and vPvB assessment:

PBT: N/A

vPvB: N/A

SECTION 3. COMPOSITION/INFORMATION ON INGREDIENTS

Substances

Description: Gallium Monoselenide

Synonyms: Gallium(II) selenide; hydrido(selenoxo)gallium

Formula: GaSe

Molecular weight: 148.68

CAS number: 12024-11-2

SECTION 4. FIRST AID MEASURES

Description of 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.If inhaled:

Supply patient with fresh air. If not breathing, provide artificial respiration. Keep patient warm. Seek

immediate medical advice.

In case of skin contact:

Immediately wash with soap and water; rinse thoroughly. Seek immediate medical advice.

In case of eye contact:

Rinse opened eye for several minutes under running water. Consult a physician.

If swallowed:

Do not induce vomiting; immediately call for medical help.

Most important symptoms and effects, both acute and delayed:

No data available

Indication of any immediate medical attention and special treatment needed:

No data available

SECTION 5. FIREFIGHTING MEASURES

Extinguishing media

Suitable extinguishing agents:

Product is not flammable. Use fire-fighting measures that suit the surrounding fire.

Special hazards arising from the substance or mixture:

If this product is involved in a fire, the following can be released: Selenium dioxide (SeO2), Hydrogen

selenide

Advice for firefighters

Protective equipment:

Wear self-contained respirator. Wear fully protective impervious suit.

SECTION 6. ACCIDENTAL RELEASE MEASURES

Personal precautions, protective equipment and emergency procedures

Use personal protective equipment. Keep unprotected persons away. Ensure adequate ventilation

Environmental precautions:

Do not allow material to be released to the environment without official permits. Do not allow

product to reach sewage system or any water course. Do not allow material to penetrate the ground or

soil.

Methods and materials for containment and cleanup:

Dispose contaminated material as waste according to item 13. Ensure adequate ventilation.

Prevention of secondary hazards:

No special measures required.

Reference to other sections:

See Section 7 for information on safe handling.

See Section 8 for information on personal protection equipment.

See Section 13 for disposal information.

SECTION 7. HANDLING AND STORAGE

Handling

Precautions 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

Conditions for safe storage, including any incompatibilities

Requirements to be met by storerooms and receptacles:

No special requirements.

Information about storage in one common storage facility:

Store away from oxidizing agents.

Further information about storage conditions:

Keep container tightly sealed. Store in cool, dry conditions in well-sealed containers. Store at room

temperature.

Specific end use(s):

No data available

SECTION 8. EXPOSURE CONTROLS/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.

Control parameters

Components with limit values that require monitoring at the workplace:

Selenium and selenium compounds (as Se)

mg/m3

ACGIH TLV 0.2

Austria MAK 0.1

Belgium TWA 0.2

Denmark TWA 0.1

Finland TWA 0.1; 0.3-STEL

Germany MAK 0.1

Hungary 0.1-STEL

Japan OEL 0.1

Korea TLV 0.2

Netherlands MAC-TGG 0.2

Poland TWA 0.1; 0.3-STEL

Sweden NGV 0.1

Switzerland MAK-W 0.1

United Kingdom TWA 0.1

USA PEL 0.2

Additional information: No data

Exposure controls

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. Maintain an ergonomically appropriate working

environment.

Breathing equipment:

Use self-contained respiratory protective device in emergency situations.

Protection of hands:

Impervious gloves. Inspect gloves prior to use. The selection of suitable

gloves not only depends on the material, but also on quality. Quality will vary from manufacturer tomanufacturer.

Eye protection:

Safety glasses

Body protection:

Protective work clothing.

SECTION 9. PHYSICAL AND CHEMICAL PROPERTIES

Information on basic physical and chemical properties

Form: Solid

Odor: No data available

Odor threshold: No data available

pH: N/A

Melting point range: No data available

Boiling point range: No data available

Sublimation temperature/start: No data available

Flash point: N/A

Flammability: No data available

Ignition temperature: No data available

Decomposition temperature: No data available

Autoignition: No data available

Danger of explosion: No

Lower explosion limits: No data available

Upper explosion limits: No data available

Vapor pressure: N/A

Density: No data available

Relative density: No data available

Vapor density: N/A

Evaporation rate: N/A

Solubility in water: No data available

Dynamic viscosity: N/A

Partition coefficient (n-octanol/water): No data available

Kinematic viscosity: N/A

SECTION 10. STABILITY AND REACTIVITY

Reactivity

No data available

Chemical stability:

Stable under recommended storage conditions.

Thermal decomposition / conditions to be avoided:

Decomposition will not occur if used and stored according to specifications.

Possibility of hazardous reactions:

No dangerous reactions known

Incompatible materials:

Oxidizing agents

Hazardous decomposition products:

Selenium dioxide (SeO2), Hydrogen selenide

SECTION 11. TOXICOLOGICAL INFORMATION

Information on toxicological effects

Acute toxicity:

Fatal if inhaled. Fatal if swallowed.

LD/LC50 values that are relevant for classification:

No data

Skin irritation or corrosion:

May cause irritation

Eye irritation or corrosion:

May cause irritation

Sensitization:

No sensitizing effects known.

Germ cell mutagenicity:

No effects known.

Carcinogenicity:

No classification data on carcinogenic properties of this material is available from the EPA, IARC,

NTP, OSHA or ACGIH.

Reproductive toxicity:

No effects known.

Specific target organ system toxicity - repeated exposure:

May cause damage to the central nervous system, the liver and the digestive system through

prolonged or

repeated exposure. Route of exposure: Oral, Inhalative.

Specific target organ system toxicity - single exposure:

No effects known.

Aspiration hazard:

No effects known.

Subacute to chronic toxicity:

Selenium may cause amyotrophic lateral sclerosis, bronchial irritation, gastrointestinal distress,

vasopharyngeal

irritation, garlic odor on breath and sweat, metallic taste, pallor, irritability, excessive fatigue, loss of

fingernails

and hair, pulmonary edema, anemia and weight loss.

Additional toxicological information:

To the best of our knowledge the acute and chronic toxicity of this substance is not fully known.

SECTION 12. ECOLOGICAL INFORMATION

Toxicity

Aquatic toxicity:

No data available

Persistence and degradability:

No data available

Behavior in environmental systems:

Bioaccumulative potential:

No data available

Mobility in soil:

No data available

Ecotoxical effects:

Remark: Very toxic for aquatic organisms

Additional ecological information:

Do not allow material to be released to the environment without official permits. Do not allowproduct to reach groundwater, water courses, or sewage systems, even in small quantities. Danger to

drinking

water if even extremely small quantities leak into the ground. Also poisonous for fish and plankton in

water

bodies. May cause long lasting harmful effects to aquatic life. Avoid transfer into the environment. Very

toxic for

aquatic organisms.

Results of PBT and vPvB assessment:

PBT: N/A

vPvB: N/A

Other adverse effects:

No data available

SECTION 13. DISPOSAL CONSIDERATIONS

Waste treatment methods:

Recommendation Consult official regulations to ensure proper disposal.

Uncleaned packagings:

Recommendation: Disposal must be made according to official regulations.

SECTION 14. TRANSPORT INFORMATION

UN-Number

DOT, ADR, IMDG, IATA UN3283

UN proper shipping name

DOT Selenium Compound, N.O.S. (Gallium Monoselenide), 6.1, PG III

ADR 3283 Selenium Compound, N.O.S. (Gallium Monoselenide), 6.1, PG III

IMDG, IATA SELENIUM COMPOUND, N.O.S. (Gallium Monoselenide)

Transport hazard class(es)

DOT, IMDG

Class 6.1

Label 6.1

ADR

Class 6.1

Label 6.1

IATA

Class 6.1

Label 6.1

Packing group

DOT, ADR, IMDG, IATA III

Environmental hazards:

Special marking (ADR): Symbol (fish and tree)

Special marking (IATA): Symbol (fish and tree)

Special precautions for user Warning: Miscellaneous dangerous substances and articles

Danger code (Kemler): 90

EMS Number: F-A,S-F

Transport in bulk according to Annex II of MARPOL73/78 and the IBC Code: N/A

Transport/Additional information:

DOT

Marine Pollutant (DOT): No

UN "Model Regulation": UN3283, Selenium Compound, N.O.S. (Gallium Monoselenide), 6.1, PG III

SECTION 15. REGULATORY INFORMATION

No data available

SECTION 16. OTHER INFORMATION

Safety Data Sheet according to Regulation (EC) No. 1907/2006 (REACH). The above information is

believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The

information in this document is based on the present state of our knowledge and is applicable to the

product with regard to appropriate safety precautions. It does not represent any guarantee of the

properties of the product.