Mercury (II) arsenate is an inorganic compound, a salt of mercury and arsenic acid with the formula Hg 3 (AsO 4 ) 2 , yellow crystals, slightly soluble in water.
| Arsenate of Mercury | |
|---|---|
| General | |
| Systematic name | Arsenate of Mercury (II) |
| Traditional names | Arsenic acid mercury; mercury (II) orthoarsenate |
| Chem. formula | Hg 3 (AsO 4 ) 2 |
| Physical properties | |
| condition | yellow crystals |
| Molar mass | 879.61 g / mol |
| Density | 7.71 g / cm³ |
| Classification | |
| Reg. CAS number | 13437-80-4 |
Physical Properties
Mercury (II) arsenate forms yellow crystals (recrystallization from strongly acidic solutions) of monoclinic syngony , space group P 2 1 / c , cell parameters a = 1,00049 nm, b = 1.17555 nm, c = 0.65374 nm, β = 99.687 °, Z = 4, the structure of the type of mercury (II) phosphate Hg 3 (PO 4 ) 2 [1] .
Slightly soluble in water.
Notes
- ↑ A.-K. Larsson, S. Lidin, C. Stålhandske, J. Albertsson. Mercury (II) arsenate, a graphtonite-type structure // Acta Cryst .. - 1993. - T. C49 , No. 4 . - S. 784-786 . - DOI : 10.1107 / S0108270192010588 .