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Gallium arsenide
Also known as: GALLIUM ARSENIDE · 1303-00-0 · Gallium arsenide (GaAs) · gallanylidynearsane
- CAS No.
- 1303-00-0
- Formula
- AsGa
- Molar mass
- 144.645 g/mol
- PubChem CID
- 14770
Toxic
Health hazard
Summary
Gallium arsenide (AsGa), CAS 1303-00-0. Common in labs and industry. Read on for hazards, storage, PPE and mixing rules.
Background
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Physical properties
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Hazards
May be fatal even in small doses.
Serious long-term health effects (CMR, respiratory sensitizer).
Hazard statements
- H350: May cause cancer [Danger Carcinogenicity]
- H360: May damage fertility or the unborn child [Danger Reproductive toxicity]
- H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]
- H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]
- H331: Toxic if inhaled [Danger Acute toxicity, inhalation]
Storage
Keep at room temperature, below 30 °C, out of direct heat.
Store somewhere well-ventilated and away from any ignition source.
Metal drums or tinted glass, tightly sealed.
Strong acids, strong bases and powerful oxidizers.
Personal protective equipment
Nitrile or butyl, at least 0.4 mm thick.
Safety goggles with side shields.
A2 organic-vapor cartridge if the room isn't well ventilated.
Occupational exposure limits (HSE)
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EU harmonised classification (ECHA C&L)
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Transport
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FDA recalls & enforcement
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Compatibilities
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Open comparator with Gallium arsenidePractical safety notes
- Acute toxicity. Work under a fume hood, restrict access, keep a specific antidote plan available.
- Serious health hazard (carcinogen, mutagen, reprotoxic, respiratory sensitizer). Substitute if possible; otherwise closed systems and medical surveillance.
Derived from the GHS classification shown above. These notes are generic guidance and do not replace the manufacturer's SDS or your local risk assessment.
FAQ
Is Gallium arsenide flammable?+
Gallium arsenide (CAS 1303-00-0) does not carry the GHS02 flame pictogram in our records. Always confirm with the manufacturer's SDS section 9 (flash point) before assuming a product is non-flammable.
What PPE should I wear when handling Gallium arsenide?+
Safety glasses with side shields and nitrile gloves are the baseline. Work inside a fume hood or use a suitable respirator. Check SDS section 8 for material-specific breakthrough times.
How should Gallium arsenide be stored?+
Store Gallium arsenide (CAS 1303-00-0) in tightly closed original containers, in a cool, dry, well-ventilated area away from incompatible materials.
Is Gallium arsenide dangerous for the environment?+
No specific environmental pictogram (GHS09) is listed in our records for Gallium arsenide, but any chemical waste should be handled through your site's hazardous-waste procedure, not poured down the drain.
Where can I find the official Safety Data Sheet for Gallium arsenide?+
Official, up-to-date SDS documents are published by each manufacturer (Sigma-Aldrich, Merck, Thermo Fisher, VWR, Carl Roth, etc.) and by regulators such as ECHA and NIOSH. This page is an educational summary and does not replace the manufacturer's SDS.
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