Synthesis of calcium molybdate

Preparation of calcium molybdate

Calcium molybdate is prepared by reacting alkali molybdates with soluble calcium chloride. The alkali metal and ammonium salts of molybdic acid are soluble, meanwhile, the calcium salt is sparingly soluble.

Preparation of calcium molybdate

Preparation of calcium molybdate

5 grams of molybdenum trioxide (MoO3) are dissolved in 12 ml of 6N sodium hydroxide solution. The obtained sodium molybdate salt is barely neutralized with 6N nitric acid, using litmus as an indicator. The neutral point must not be overstepped if a precipitate of molybdic acid is to be avoided. 3.8 grams of anhydrous calcium chloride are dissolved in 9 ml of water and poured with stirring into the sodium molybdate solution. The obtained calcium molybdate precipitates are collected, washed with cold water, and dried  at 80-100° C over night.

Synthetic inorganic chemistry, by A. A. Blanchard, 333-334, 1936





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Depositor-Supplied Synonyms

CALCIUM MOLYBDATE, Molybdate, calcium, Calcium molybdate(VI), calcium dioxido(dioxo)molybdenum, 7789-82-4, Calcium molybdenum oxide (CaMoO4), EINECS 232-192-9, Molybdic acid (H2MoO4), calcium salt (1:1), Molybdate (MoO42-), calcium (1:1), (T-4)-, Molybdate (MoO42-), calcium (1:1), (beta-4)-, CALCIUMMOLYBDATE, AC1NAHYQ, calcium(2+) molybdate, AC1L2NK7, UNII-Q03C83V2AN, Q03C83V2AN, calcium dioxomolybdenumbis(olate), AKOS015916062, LS-48654, FT-0694885, 3B4-4152, I14-52569

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