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MAP20071019281Scott, NelsonReaction of gallium arsenide with concentrated acids : formation of arsine / Nelson Scott, Dean E. Carter and Quintus FernandoSumario: Crystalline particles of gallium arsenide (GaAs) (-2 microm in diameter) react with concentrated hydrochloride acid (HCL) (11.6 to 9M) to form highly toxic arsine (AsH3) gas. A spectrophotometric method, based on the reaction of AsH3 with silver diethyldithiocarbamate in a chloroform solution containing morpholine was used to detect AsH3 gas dissolved in aqueous solutions and to determine the AsH3 gas that was liberated by the reaction of GaAs with HClEn: American Industrial Hygiene Association journal. - Akron, Ohio. - Vol. 50, nº 7, July 1989 ; p. 379-3811. Higiene industrial. 2. Contaminantes químicos. 3. Arsénico. 4. Arseniuro de galio. 5. Ácido clorhídrico. 6. Reacciones químicas. 7. Toxicidad. I. Carter, Dean E.. II. Fernando, Quintus. III. Título. IV. Título: American Industrial Hygiene Association journal.