Potassium selenate, K
2SeO
4, is an odorless, white solid that forms as the potassium salt of selenic acid.
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ECHA InfoCard | 100.029.286 |
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Properties | |
K 2SeO 4 | |
Molar mass | 221.2 g/mol[1] |
Appearance | colorless crystals hygroscopic |
Odor | odorless |
Density | 3.07 g/cm3[2] |
1.07 g/ml (0 °C) 1.11 g/ml (20 °C) 1.22 g/ml (100 °C) | |
Refractive index (nD)
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1.539 |
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orthorhombic | |
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Other anions
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Potassium sulfate |
Other cations
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Sodium selenate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Potassium selenate is produced by the reaction of selenium trioxide and potassium hydroxide.
Alternatively, it can be made by treating selenous acid with potassium hydroxide, followed by oxidation of the resulting potassium selenite with bromine water.[3]
Potassium selenate can be used to produce selenium trioxide.[4] It can also use to treat selenium deficiency in livestock.[5]
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