MANN'S REAGENT
\mˈanz ɹɪˈe͡ɪd͡ʒənt], \mˈanz ɹɪˈeɪdʒənt], \m_ˈa_n_z ɹ_ɪ__ˈeɪ_dʒ_ə_n_t]\
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A r. made by triturating 1 part of molybdic acid with 2 parts of citric acid, melting the product, dissolving it in water, soaking filter paper in the solution, and drying at 100 C.; used for the detection of water in moist air or in alcohol or ether. The paper is blue when prepared, and becomes white in the presence of water.
By Smith Ely Jelliffe
