Gallium arsenide pieces, % trace metals basis; CAS Number: AsGa; find Sigma-Aldrich MSDS, related peer-reviewed papers, technical. SAFETY DATA SHEET. GALLIUM ARSENIDE OPTICAL CRYSTAL. According to Regulation (EC) No/ (REACH). Revision MATERIAL SAFETY DATA SHEET. I. PRODUCT IDENTIFICATION. Trade Name: Gallium Arsenide. Synonym: Gallium Monoarsenide. Formula: GaAs. CAS #.
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GaAs could be quite dangerous stuff. The first known operational use of GaAs solar cells in space was for the Venera 3 mission, launched in I’ve looked at various data over mssds past couple of days on this stuff and they all seem to say the crystal is safe as GaAs, but can liberate As and Ga compounds in contact with acids etc.
GaAs can be used for various transistor types: I work in university department where they make laser diodes from GaAs wafers and they take every precaution to mscs direct contact to bulk material or GaAs dust.
Overall summary evaluation of carcinogenic risk to humans is Group 1: Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.
Avoid contact with skin and eyes. In contrast, the absorptivity of Gaxs is so high that only a few micrometers of thickness are needed to absorb all of the light.
Uses advised against no data available 1. Skin protection Wear impervious clothing.
GaAs – Gallium Arsenide – Epitaxy Ready Polished Wafers: Wafer Technology
GaAs has been used to produce near-infrared laser smds since Consequently, GaAs thin films must be supported on a substrate material. Tags for this Thread nottoxic. Naturally, a GaAs surface cannot withstand the high temperatures needed for diffusion; however a viable and actively pursued alternative as of the ‘s was ion implanation. Monitor for pulmonary edema and treat if necessary Watch for signs of respiratory insufficiency and assist ventilations if needed.
We as supplier shall not be held liable for any damage resulting from handling or from contact with the above product. GaAs is often used as a substrate material for the epitaxial growth of other III-V semiconductors including indium gallium arsenidealuminum gallium arsenide and others. Store in well ventilated area away from food or food products and combustible gaas.
P Obtain special instructions before use. Provide appropriate exhaust ventilation at places where dust is formed.
CAS MSDS (GALLIUM ARSENIDE) Melting Point Boiling Point Density CAS Chemical Properties
If breathed in, move person into fresh air. HHHF. Protect container against physical damage. Dispose faas contaminated gloves after use in accordance with applicable laws and good laboratory practices. Because they lack a fast CMOS structure, GaAs circuits must use logic styles which have much higher power consumption; this has made GaAs logic circuits unable to compete with silicon logic circuits.
Respiratory protection Wear dust mask when handling large quantities. P Gass not eat, drink or smoke when using this product. Also many solar cars utilize GaAs in solar arrays. Chichester, West Sussex, England: Silicon has an indirect bandgap and so is relatively poor at emitting light. It does not represent any guarantee of the properties of the product.
P Do not handle until all safety precautions have been read and understood. The GaAs solar cells, manufactured by Kvant, were chosen because of their higher performance in high temperature environments. This low carrier concentration is similar to an intrinsic perfectly undoped crystal, but much easier to achieve in practice.
To my thinking then, if you swallow some of the dust it will be in contact with acid in you stomach and this would give off arsenic inside you Critical Reviews in Toxicology.
These superior properties are compelling reasons to use GaAs circuitry in mobile phonessatellite communications, microwave point-to-point links and higher frequency radar systems.
Readily attacked by the halogens. The vaas now is NIOSH msfs recommends that occupational exposures to carcinogens be limited to the lowest feasible concentration. Semiconductor Devices Physics and Technology. From Extraterrestrial to Terrestrial Applications”. Department mss Transportation, website: Never give anything by mouth to an unconscious person. Properties of Gallium Arsenide. Avoid breathing vapours, mist or gas. Do not discharge to sewer systems.
Combined with a high dielectric constantthis property makes GaAs a very good substrate for Integrated circuits and unlike Si provides natural isolation between devices and circuits. Concerns over GaAs’s susceptibility to heat damage have been raised, but it has been speculated that certain manufacturers would benefit from such limitations, considering the planned obsolescence cycle that many consumer electronics are designed to follow.
About this time I got really sick somehow. Mechanical Specifications Gallium arsenide can be supplied as ingots or ingot sections or as-cut, etched or polished wafers.