HUME'S TEST FOR ARSENIC
\hjˈuːmz tˈɛst fɔːɹ ˈɑːsnɪk], \hjˈuːmz tˈɛst fɔːɹ ˈɑːsnɪk], \h_j_ˈuː_m_z t_ˈɛ_s_t f_ɔː_ɹ ˈɑː_s_n_ɪ_k]\
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A test made by adding, drop by drop, a weak solution of ammonia to a solution of silver nitrate until the brown precipitate first produced is nearly dissolved, decanting the clear liquid, and adding it to the suspected liquid. If arsenic is present, a bright yellow precipitate of silver arsenite is produced, that must be collected and heated with a reducing agent so as to form a sublimate of metallic arsenic.
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See Hume.
By Smith Ely Jelliffe
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Nearby Words
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- Hume's Test for Arsenic
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