"The problem is it's rare, so it's expensive." GALLIUM ARSENIDE . R – This substance was identified as toxic to reproduction ... Gallium arsenide. The figure below shows Bohr’s model of the atomic structures for gallium and arsenic. SAFETY DATA SHEET . "Gallium is actually the ideal semiconducting material, even better than silicon," says Mindiola. The International Agency for Research on Cancer (IARC) has classified gallium arsenide as a human carcinogen. 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. (NTP, 1992) Comparative pulmonary toxicity of gallium arsenide, gallium(III) oxide, or arsenic(III) oxide intratracheally instilled into rats. These records shall document the procedure used when each tool was decontaminated following use with wafers containing phosphorus, arsenic, antimony, gallium, and/or … arsenic, antimony, gallium, and/or indium epitaxial or surface terminated films at CNSE. 1986 Mar 15;82(3):405-16. Toxicol Appl Pharmacol. generated by newly developed gunpowder and combustion fuels, and in evaluating their threats to the health of soldiers. On the other hand, the crystal is stable enough that ingested pieces may be passed with negligible absorption by the body. The molten form attacks quartz. Wt. Pubmed Abstract PRODUCT AND COMPANY IDENTIFICATION Product Name: Gallium Arsenide C.A.S. DATE OF LAST REVISION: 06/24/15. Gallium has been known to cause skin irritations or even dermatitis. CAS Number: 1303-00-0 / EC Number: 215-114-8 Company: Angstrom Sciences, Inc. Later through the reduction with carbon, arsenic is produced. 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. Readily attacked by the halogens. MSDS for Gallium Arsenide 1. Attacked by cold concentrated hydrochloric acid. Gallium arsenide is an important semiconductor material marketed in the shape of wafers and thus is not hazardous to the end user. Exposure to GaAs particles may, however, occur during manufacture and processing. 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. The U. S. Army requires an instrument for monitoring gaseous by-products, including HCL, NO2, CO2, CO, etc. On one hand, due to its arsenic content, it is considered highly toxic and carcinogenic. The toxicological properties of gallium arsenide have not been thoroughly investigated. Potential hazards require evaluation. Gallium arsenide contains both gallium and arsenic. GALLIUM ARSENIDE can react with steam, acids and acid fumes. Number: 1303-00-0 Chemical Formula: GaAs Mol. 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 Section 1: Identification . 144.64 Manufacturer: Wafer Technology Ltd Address: 34 Maryland Rd Tongwell Milton Keynes MK15 8HJ United Kingdom Tel: +44 (0)1908 210444 Fax: +44 (0)1908 210443 2. Gallium has been found to not be toxic, but many sources find this information to be non-conclusive. Reacts with bases with evolution of hydrogen. Product Name: Gallium Arsenide . 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