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Reaction of gallium arsenide with concentrated acids : formation of arsine

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      <subfield code="a">Reaction of gallium arsenide with concentrated acids</subfield>
      <subfield code="b">: formation of arsine</subfield>
      <subfield code="c">Nelson Scott, Dean E. Carter and Quintus Fernando</subfield>
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      <subfield code="a">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 HCl</subfield>
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      <subfield code="a">Arseniuro de galio</subfield>
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      <subfield code="a">Carter, Dean E.</subfield>
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      <subfield code="a">American Industrial Hygiene Association journal</subfield>
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      <subfield code="t">American Industrial Hygiene Association journal</subfield>
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      <subfield code="g">Vol. 50, nº 7, July 1989 ; p. 379-381</subfield>
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