Calcium arsenide
Chemical compound / From Wikipedia, the free encyclopedia
Calcium arsenide is an inorganic compound with the chemical formula Ca2As2 and is one of the arsenides of calcium.[1] It is a hexagonal crystal with a space group of P62m. It is isostructural with sodium peroxide and can be expressed as (Ca2+)2(As-As)4−.[2] It reacts with sodium monoarsenide and silicon in a tantalum container to obtain Na4Ca2SiAs4.[3] It reacts with potassium arsenide, iron arsenide and calcium fluoride at high temperature to obtain KCa2Fe4As4F2.[4]
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CaAs | |
Molar mass | 115.00 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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