Gallium Arsenide (GaAs) (CAS No.1303-00-0) | Stanford Advanced Materials

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GA1688 Gallium Arsenide (GaAs) (CAS No.1303-00-0)

Catalog No.	GA1688
Appearance	Gray cubic crystals
Melting Point	1238°C
Solubleness	< 0.1
Purity	≥99.99%

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GA1688 Gallium Arsenide (GaAs) (CAS No.1303-00-0)

Description

Specification

Technical Data Sheet

Gallium Arsenide (GaAs) Description

Gallium arsenide (GaAs) is a compound of the elements gallium and arsenic. It is an important semiconductor and is used in the manufacture of devices such as microwave frequency integrated circuits, e.g., monolithic microwave integrated circuits, infrared light-emitting diodes, laser diodes, solar cells, and optical windows.
Chemical Name: Gallium arsenide
Chemical Formula: GaAs

Synonyms

Gallium arsenide (GaAs), gallium monoarsenide (GaAs), gallanylidynearsane, galliumarsenide(gaas), galliummonoarsenide, CAS# 1303-00-0, gallium arsenide pieces, gallium arsenide, 99.999% (metals basis), arsinidynegallium, gallium arsenide wafer, gallium arsenide (99.9999% Ga) puratrem 25mm and down polycrystalline pieces, GALLIUM ARSENIDE, SINGLE CRYSTAL SUBSTR, Gallium arsenide, pieces, 99.999% metals basis, Galliumarsenide(99.9999%-Ga) puratrem, GALLIUM ARSENIDE: (99.9999% GA) PURATREMECES, GALLIUM ARSENIDE WAFER - 51MM

Purity

Typical= 99.99% up to 99.999999%

Form

Splatter, ingot, wafer, pieces

Gallium Arsenide (GaAs) Specifications

Molar Mass (g/mol)	144.645
Solubility- (g/100 mL (20 °C)	< 0.1
Apparent Density (g/cm3)	5.316
Band Gap eV (300 K)	1.424
Merck	14,4347
Melting Point (°C)	1238
Thermal Conductivity W/(cm·K) (300 K)	0.55
Molecular Shape	linear
Appearance	gray cubic crystals
Crystallography	zinc blende

Gallium Arsenide (GaAs) Classification

Gallium Arsenide Chemical Abstract Service Number: CAS# 1303-00-0
Gallium Arsenide RTECS Number: LW8800000

Gallium Arsenide (GaAs) Typical Applications

1) GaAs has some electronic properties which are superior to those of silicon. It has a higher saturated electron velocity and higher electron mobility, allowing transistors made from it to function at frequencies in excess of 250 GHz. Unlike silicon cells, GaAs cells are relatively insensitive to heat.
2) Also, GaAs devices generate less noise than silicon devices when operated at high frequencies. They can also be operated at higher power levels than the equivalent silicon device because they have higher breakdown voltages. These properties recommend GaAs circuitry in mobile phones, satellite communications, microwave point-to-point links, and some radar systems.
3) It is used in the manufacture of Gunn diodes for the generation of microwaves.
4) Another advantage of GaAs is that it has a direct bandgap, which means that it can be used to emit light efficiently.
5) Solar cells and detectors- Another important and growing application of GaAs are for high-efficiency solar cells. Gallium arsenide (GaAs) is also known as the single-crystalline thin film and are high-cost high-efficiency solar cells.
6) In 1970, the first GaAs heterostructure solar cells were created by the team led by Zhores Alferov in the USSR.[9][10][11] In the early 1980s, the efficiency of the best GaAs solar cells surpassed that of silicon solar cells, and in the 1990s GaAs solar cells took over from silicon as the cell type most commonly used for Photovoltaic arrays for satellite applications. Later, dual- and triple-junction solar cells based on GaAs with germanium and indium gallium phosphide layers were developed as the basis of a triple junction solar cell which held a record efficiency of over 32% and can operate also with light as concentrated as 2,000 suns. This kind of solar cell powers the rovers Spirit and Opportunity, which are exploring Mars' surface.
7) Also, many solar cars utilize GaAs in solar arrays.
8) GaAs diodes can be used for the detection of X-rays.
9) Light emission devices- GaAs has been used to produce (near-infrared) laser diodes since 1962.
10) GaAs has often used as substrate material for the epitaxial growth of other III-V semiconductors including: InGaAs and GaInNAs.

Gallium Arsenide (GaAs) Packaging

Jars, pails, drums. For further information on packaging options, please contact SAM.

Gallium Arsenide (GaAs) Powder Safety Information

Signal Word	Danger
Hazard Statements	H301 + H331-H410
Hazard Codes	T,N
Risk Codes	23/25-50/53
Safety Statements	20/21-28-45-60-61
RTECS Number	LW8800000
Transport Information	UN 1557 6.1/PG 2
WGK Germany	3
GHS Pictograms

Specification

Molar Mass (g/mol)	144.645
Solubility- (g/100 mL (20 °C)	< 0.1
Apparent Density (g/cm3)	5.316
Band Gap eV (300 K)	1.424
Merck	14,4347
Melting Point (°C)	1238
Thermal Conductivity W/(cm·K) (300 K)	0.55
Molecular Shape	linear
Appearance	gray cubic crystals
Crystallography	zinc blende

Technical Data Sheet

SDS

Print to PDF

SAFETY DATA SHEET

SECTION 1. IDENTIFICATION

Product Name: Gallium Arsenide

CAS #: 1303-00-0

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

Acute Tox. 3 H301 Toxic if swallowed.

Acute Tox. 3 H331 Toxic if inhaled.

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

T; Toxic

R23/25: Toxic by inhalation and if swallowed.

N; Dangerous for the environment

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

environment.

Information concerning particular hazards for human and environment:

N/A

Hazards not otherwise classified

No data available

Label elements

Labelling according to Regulation (EC) No 1272/2008

The substance is classified and labeled according to the CLP regulation.

Hazard pictogramsGHS06

Signal word

Danger

Hazard statements

H301+H331 Toxic if swallowed or if inhaled.

Precautionary statements

P261 Avoid breathing dust/fume/gas/mist/vapors/spray.

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

P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.

P311 Call a POISON CENTER/doctor/...

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

D2A - Very toxic material causing other toxic effects

Classification system

HMIS ratings (scale 0-4)

(Hazardous Materials Identification System)

HEALTH

FIRE

REACTIVITY

Health (acute effects) = 3

Flammability = 0

Physical Hazard = 1

Other hazards

Results of PBT and vPvB assessment

PBT:

N/A

vPvB:

N/A

SECTION 3. COMPOSITION/INFORMATION ON INGREDIENTS

Substances

CAS No. / Substance Name:

1303-00-0 Gallium arsenide

Identification number(s):

EC number:

215-114-8

Index number:

033-002-00-5

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.

Information for doctor

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

CO2, sand, extinguishing powder. Do not use water.

Special hazards arising from the substance or mixture

If this product is involved in a fire, the following can be released:

Toxic metal oxide fume

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 enter drains, sewage systems, or other water courses.

Do not allow material to penetrate the ground or soil.

Methods and materials for containment and cleanup:

Dispose of contaminated material as waste according to section 13.

Ensure adequate ventilation.

Prevention of secondary hazards:

No special measures required.

Reference to other sections

See Section 7 for information on safe handlingSee 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:

No data available

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:

No data available

Further information about storage conditions:

Keep container tightly sealed.

Store in cool, dry conditions in well-sealed containers.

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:

Arsenic, elemental, and inorganic

compounds (except arsine), as As

mg/m3

ACGIH TLV 0.01; Confirmed human carcinogen

Belgium TWA 0.2

Denmark TWA 0.05

Finland TWA Carcinogen

France VME 0.2

Hungary 0.5-STEL; Carcinogen

Korea TWA 0.01; Confirmed human carcinogen

Norway 0.02

Poland TWA 0.01

Sweden NGV 0.03; Carcinogen

Switzerland TWA 0.1; Carcinogen

United Kingdom TWA 0.1; Carcinogen

USA PEL 0.01

1303-00-0 Gallium arsenide (100.0%)

REL (USA) Ceiling limit value: 0.002* mg/m

as As; *15-min; See Pocket Guide App. A

TLV (USA) Long-term value: 0.01 mg/m

3as As; BEI

EL (Canada) Long-term value: 0.0003 mg/m

IARC 1

EV (Canada) Short-term value: 0.05 mg/m

Long-term value: 0.01 mg/m

as As

Additional information:

No data

Exposure controls

Personal protective equipment

Follow typical protective and hygienic practices for handling chemicals.

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:

Refer to 29CFR1910.1018 for regulations on respiratory protection required during exposure to

inorganic arsenic.

Use self-contained respiratory protective device in emergency situations.

Protection of hands:

Impervious gloves

Inspect gloves prior to use.

Suitability of gloves should be determined both by material and quality, the latter of which may vary by

manufacturer.

Eye protection:

Safety glasses

Body protection:

Protective work clothing

SECTION 9. PHYSICAL AND CHEMICAL PROPERTIES

Information on basic physical and chemical properties

Appearance:

Form: Solid in various forms

Color: Dark grey/Black

Odor: Odorless

Odor threshold: No data available.

pH: N/A

Melting point/Melting range: 1238 °C (2260 °F)

Boiling point/Boiling range: No data available

Sublimation temperature / start: No data available

Flash point: N/A

Flammability (solid, gas)

No data available.

Ignition temperature: No data available

Decomposition temperature: No data available

Autoignition: No data available.

Danger of explosion: Product does not present an explosion hazard.

Explosion limits:

Lower: No data available

Upper: No data availableVapor pressure: N/A

Density at 20 °C (68 °F): 5.31 g/cm

(44.312 lbs/gal)

Relative density

No data available.

Vapor density

N/A

Evaporation rate

N/A

Solubility in Water (H

O): Reacts

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

Viscosity:

Dynamic: N/A

Kinematic: N/A

Other information

No data available

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

Conditions to avoid

No data available

Incompatible materials:

No data available

Hazardous decomposition products:

Arsenic compounds

SECTION 11. TOXICOLOGICAL INFORMATION

Information on toxicological effects

Acute toxicity:

Toxic if inhaled.

Toxic if swallowed.

LD/LC50 values that are relevant for classification:

No data

Skin irritation or corrosion:

Irritant to skin and mucous membranes.

Eye irritation or corrosion:

Irritating effect.

Sensitization:

No sensitizing effects known.

Germ cell mutagenicity:

No effects known.

Carcinogenicity:

EPA-A: human carcinogen: sufficient evidence from epidemiologic studies to support acausal association between exposure and cancer.

IARC-1: Carcinogenic to humans: sufficient evidence of carcinogenicity.

ACGIH A1: Confirmed human carcinogen: Agent is carcinogenic to humans based on epidemiologic

studies of, or convincing clinical evidence in, exposed humans.

Carcinogen as defined by OSHA.

NTP-K: Known to be carcinogenic: sufficient evidence from human studies.

The Registry of Toxic Effects of Chemical Substances (RTECS) contains tumorigenic and/or

carcinogenic and/or neoplastic data for this substance.

Reproductive toxicity:

No effects known.

Specific target organ system toxicity - repeated exposure:

No effects known.

Specific target organ system toxicity - single exposure:

No effects known.

Aspiration hazard:

No effects known.

Subacute to chronic toxicity:

Acute arsenic poisoning from ingestion results in marked irritation of the stomach and intestines with

nausea, vomiting and diarrhea. In severe cases, the vomitus and stools are bloody and the patient

goes into collapse and shock with weak, rapid pulse, cold sweats, coma and death.

Chronic arsenic poisoning may cause disturbances of the digestive system such as loss of appetite,

cramps, nausea, constipation or diarrhea.

Subacute to chronic toxicity:

The Registry of Toxic Effects of Chemical Substances (RTECS) reports the following effects in

laboratory animals:

Behavioral - excitement.

Behavioral - ataxia.

Behavioral - somnolence (

general depressed activity).

Behavioral - food intake (animal).

Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - true cholinesterase.

Biochemical - Metabolism (Intermediary) -

Plasma proteins not involving coagulation.

Biochemical - Metabolism (Intermediary) - other.

Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol).

Blood - pigmented or nucleated red blood cells.

Blood - changes in erythrocyte (RBC) count.

Brain and Coverings - recordings from specific areas of CNS.

Endocrine - changes in spleen weight.

Endocrine - changes in thymus weight.

Kidney, Ureter, Bladder - changes in tubules (including acute renal failure, acute tubular necrosis).

Liver - changes in liver weight.

Lungs, Thorax, or Respiration - respiratory stimulation.

Lung, Thorax, or Respiration - changes in lung weight.

Lungs, Thorax, or Respiration - fibrosis, focal (pneumoconiosis).

Lungs, Thorax, or Respiration - dyspnea.

Lungs, Thorax, or Respiration - tumors.

Lungs, Thorax, or Respiration - other changes.

Nutritional and Gross Metabolic - weight loss or decreased weight gain.

Nutritional and Gross Metabolic - changes in calcium.

Nutritional and Gross Metabolic - changes in phosphorus.

Peripheral Nerve and Sensation - flaccid paralysis without anesthesia (usually neuromuscular

blockage).

Related to Chronic Data - death.

Sense Organs and Special Senses (Eye) - conjunctive irritation.Reproductive - Maternal Effects - other effects.

Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus).

Reproductive - Paternal Effects - spermatogenesis (including genetic material, sperm morphology,

motility, and count).

Reproductive - Paternal Effects - testes, epididymis, sperm duct.

Reproductive - Fertility - post-implantation mortality (e.g. dead/or resorbed implants per total number

of implants).

Reproductive - Fertility - other measures of fertility.

Reproductive - Specific Developmental Abnormalities - craniofacial (including nose and tongue).

Reproductive - Specific Developmental Abnormalities - musculoskeletal system.

Reproductive - Effects on Embryo or Fetus - fetal death.

Tumorigenic - carcinogenic by RTECS criteria.

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

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 allow product 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, IMDG, IATA

UN1557

UN proper shipping name

DOT

Arsenic compounds, solid, n.o.s. (Gallium arsenide)

IMDG, IATA

ARSENIC COMPOUND, SOLID, N.O.S. (Gallium arsenide)

Transport hazard class(es)

DOT

Class

6.1 Toxic substances.

Label

6.1

Class

6.1 (T5) Toxic substances

Label

6.1

IMDG, IATA

Class

6.1 Toxic substances.

Label

6.1

Packing group

DOT, IMDG, IATA

Environmental hazards:

Environmentally hazardous substance, solid

Special precautions for user

Warning: Toxic substances

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

N/A

Transport/Additional information:

DOT

Marine Pollutant (DOT):

UN "Model Regulation":

UN1557, Arsenic compounds, solid, n.o.s. (Gallium arsenide), 6.1, Il

SECTION 15. REGULATORY INFORMATION

Safety, health and environmental regulations/legislation specific for the substance or mixture

National regulations

All components of this product are listed in the U.S. Environmental Protection Agency Toxic

Substances Control Act Chemical substance Inventory.All components of this product are listed on the Canadian Domestic Substances List (DSL).

SARA Section 313 (specific toxic chemical listings)

1303-00-0 Gallium arsenide

California Proposition 65

Prop 65 - Chemicals known to cause cancer

1303-00-0 Gallium arsenide

Prop 65 - Developmental toxicity

Substance is not listed.

Prop 65 - Developmental toxicity, female

Substance is not listed.

Prop 65 - Developmental toxicity, male

Substance is not listed.

Information about limitation of use:

For use only by technically qualified individuals.

This product contains arsenic and is subject to the reporting requirements of section 313 of the

Emergency Planning and Community Right to Know Act of 1986 and 40CFR372.

Other regulations, limitations and prohibitive regulations

Refer to 29CFR1910.1018 for regulations concerning inorganic arsenic.

Substance of Very High Concern (SVHC) according to the REACH Regulations (EC) No. 1907/2006.

Substance is not listed.

The conditions of restrictions according to Article 67 and Annex XVII of the Regulation (EC) No

1907/2006 (REACH) for the manufacturing, placing on the market and use must be observed.

Substance is not listed.

Annex XIV of the REACH Regulations (requiring Authorisation for use)

Substance is not listed.

REACH - Pre-registered substances

Substance is listed.

Chemical safety assessment:

A Chemical Safety Assessment has not been carried out.

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.

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GA1688 Gallium Arsenide (GaAs) (CAS No.1303-00-0)

Gallium Arsenide (GaAs) Description

Synonyms

Gallium Arsenide (GaAs) Specifications

Gallium Arsenide (GaAs) Classification

Gallium Arsenide (GaAs) Typical Applications

Gallium Arsenide (GaAs) Packaging

Gallium Arsenide (GaAs) Powder Safety Information

Specification

Technical Data Sheet

SAFETY DATA SHEET

SECTION 1. IDENTIFICATION

SECTION 2. HAZARDS IDENTIFICATION

SECTION 3. COMPOSITION/INFORMATION ON INGREDIENTS

SECTION 4. FIRST AID MEASURES

SECTION 5. FIREFIGHTING MEASURES

SECTION 6. ACCIDENTAL RELEASE MEASURES

SECTION 7. HANDLING AND STORAGE

SECTION 8. EXPOSURE CONTROLS/PERSONAL PROTECTION

SECTION 9. PHYSICAL AND CHEMICAL PROPERTIES

SECTION 10. STABILITY AND REACTIVITY

SECTION 11. TOXICOLOGICAL INFORMATION

SECTION 12. ECOLOGICAL INFORMATION

SECTION 13. DISPOSAL CONSIDERATIONS

SECTION 14. TRANSPORT INFORMATION

SECTION 15. REGULATORY INFORMATION

SECTION 16. OTHER INFORMATION

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