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Chloride of Nickel

Neutralize muriatic acid with oxide (protoxide) of nickel, and evaporate gently; small green crystals of chloride (muriate) of nickel. If these crystals and ether, very deliquescent and corrosive, are pure, they are rendered yellow and anhyand is dissipated by a heat a little above drous by heat; if cobalt be present the salt 2120 Fahr. (Cooley.) Perchloride of iron retains a green tint. should not be given in mixtures containing 4175. Protoxide of Nickel. The promedicated syrups or gum-arabic, since the toxide (oxide) of nickel is obtained in an latter, as well as all substances containing anhydrous form by heating oxalate of nickel tannin, which is the case with those syrups, to redness in an open vessel. The hydrated are incompatible with ferric salts. The pro- oxide is an ash-grey powder formed by preper menstruum is simple sugared water; it cipitating the oxalate of nickel with caustic is also necessary to keep these mixtures from potassa. the light, on account of the chemical reduction produced by the latter. (Eymael.)