Abstract
AbstractThe solubilization of arsenic in solid gallium arsenide by aqueous solutions/suspensions of organic halides is described. Although arsenic is removed from gallium arsenide surfaces, excess quantities of gallium are not found in the solution. The abilities of the organic halide to solubilize arsenic decreases as follows: C2H5Br> CH3I> 2‐C3H7I> 1‐C3H7I> 2‐C4H9Br> CH2CHCH2I> 2‐C3H7Br≃ 1‐C4H9Br.The results correlate with a combination of organic halide solubility, bond enthalpy and carbonium ion stability factors. Other parameters investigated using gallium arsenide and iodomethane include concentration, physical state of the arsenide, pH, role of oxygen and role of light.
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