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gallium arsenide toxicity

The International Agency for Research on Cancer (IARC) has classified gallium arsenide as a human carcinogen. Toxicol Appl Pharmacol. Reacts with bases with evolution of hydrogen. On the other hand, the crystal is stable enough that ingested pieces may be passed with negligible absorption by the body. The U. S. Army requires an instrument for monitoring gaseous by-products, including HCL, NO2, CO2, CO, etc. Gallium arsenide is an important semiconductor material marketed in the shape of wafers and thus is not hazardous to the end user. GALLIUM ARSENIDE . Pubmed Abstract These records shall document the procedure used when each tool was decontaminated following use with wafers containing phosphorus, arsenic, antimony, gallium, and/or … Wt. Gallium has been found to not be toxic, but many sources find this information to be non-conclusive. Section 1: Identification . Using current manufacturing processes, a wafer of gallium arsenide, the most popular gallium-based semiconductor material, is roughly 1,000 times more expensive than a silicon wafer. Product Name: Gallium Arsenide . (NTP, 1992) The molten form attacks quartz. Later through the reduction with carbon, arsenic is produced. Gallium arsenide contains both gallium and arsenic. Number: 1303-00-0 Chemical Formula: GaAs Mol. Readily attacked by the halogens. The figure below shows Bohr’s model of the atomic structures for gallium and arsenic. EC Inventory, C&L Inventory, PIC, REACH pre-registration, Other, Cosmetic Products Regulation, Annex II - Prohibited Substances, Protection of Pregnant and Breastfeeding Workers Directive, Annex I+II, CAD - Chemical Agents Directive, Art. In order to better appreciate the structure and the properties of gallium arsenide crystal, it is better to know more about the characteristics of the individual atoms, Arsenic and Gallium. Comparative pulmonary toxicity of gallium arsenide, gallium(III) oxide, or arsenic(III) oxide intratracheally instilled into rats. The toxicological properties of gallium arsenide have not been thoroughly investigated. PRODUCT AND COMPANY IDENTIFICATION Product Name: Gallium Arsenide C.A.S. Exposure to GaAs particles may, however, occur during manufacture and processing. Attacked by cold concentrated hydrochloric acid. Toxicity studies in experimental animal systems have shown gallium nitrate and gallium arsenide to produce toxicity to the lungs, immune system, kidneys, and hematopoietic systems. SAFETY DATA SHEET . "The problem is it's rare, so it's expensive." CAS Number: 1303-00-0 / EC Number: 215-114-8 Company: Angstrom Sciences, Inc. GALLIUM ARSENIDE can react with steam, acids and acid fumes. "Gallium is actually the ideal semiconducting material, even better than silicon," says Mindiola. Gallium has been known to cause skin irritations or even dermatitis. Potential hazards require evaluation. generated by newly developed gunpowder and combustion fuels, and in evaluating their threats to the health of soldiers. MSDS for Gallium Arsenide 1. 1986 Mar 15;82(3):405-16. 2012 Priority List for the Development of Proposition 65 NSRLs for Carcinogens and MADLs for Chemicals Causing Reproductive Toxicity; Chemicals Listed Effective August 1, 2008 as Known to the State of California to Cause Cancer or Reproductive Toxicity: gallium arsenide, hexafluoroacetone, nitrous oxide and vinyl cyclohexene dioxide R – This substance was identified as toxic to reproduction ... Gallium arsenide. DATE OF LAST REVISION: 06/24/15. 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