|
Atomistry » Calcium » Chemical Properties » Acid Calcium Sulphates | ||
Atomistry » Calcium » Chemical Properties » Acid Calcium Sulphates » |
Acid Calcium Sulphates
By cooling, or by precipitation with hot water of saturated solutions of calcium sulphate in hot concentrated sulphuric acid, several different acid sulphates may be obtained, CaSO4.H2SO4, CaSO4.3H2SO4, and 2CaSO4.H2SO4. Kendall and Davidson, on studying the solubility curve of calcium sulphate in anhydrous sulphuric acid, found two modifications of the compound CaSO4.3H2SO4. Only one of them was stable over the range of temperature of the experiment, namely 0°-63° C. These compounds are all decomposed by water or by moist air. The compound CaSO4.H2SO4 has been obtained in the gelatinous state. D'Ans separated an acid double sulphate of calcium and sodium, but it was probably an isomorphous mixture.
|
Last articlesCa in 3AYFCa in 3AY9 Ca in 3AXE Ca in 3AXI Ca in 3AXH Ca in 3AX7 Ca in 3AX9 Ca in 3AX4 Ca in 3AVY Ca in 3AVX |
© Copyright 2008-2020 by atomistry.com | ||
Home | Site Map | Copyright | Contact us | Privacy |