| Potassium bisulfate | |
|---|---|
 |
|
| IUPAC name |
Potassium hydrogen sulfate
|
| Other names | Potassium acid sulfate |
| Identifiers | |
| CAS number | 7646-93-7  |
| PubChem | 516920 |
| EC number | 231-594-1 |
| UN number | 2509 |
| RTECS number | TS7200000 |
| Properties | |
| Molecular formula | KHSO4 |
| Molar mass | 136.169 g/mol |
| Density | 2.245 g/cm3 |
| Melting point |
197 °C |
| Boiling point |
Dec. > 300 °C |
| Solubility in water | 490 g/L |
| Hazards | |
| MSDS | External MSDS |
| EU Index | 016-056-00-4 |
| EU classification | Corrosive (C) |
| R-phrases | R34, R37 |
| S-phrases | (S1/2), S26, S36/37/39, S45 |
| Related compounds | |
| Related compounds | Sodium bisulfate |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
| Infobox references | |
Potassium bisulfate is the potassium salt of bisulfate anion, with the molecular formula KHSO4. This compound is commonly used in the conversion of tartrates to bitartrates in wine. Potassium bisulfate is also used as a disintegrating agent in analytical chemistry.
A solution of potassium bisulfate behaves as if the two related compounds (K2SO4 and H2SO4) were side by side uncombined. Adding ethanol to a solution of potassium bisulfate precipitates out sulfate.
Mercallite, the mineralogical form of potassium bisulfate, occurs very rarely. Misenite is the other, more complex, potassium hydrogen sulfate.
See also
References
- Merck Index of Chemicals and Drugs, 14th ed.
|
|||||
 |
This inorganic compound-related article is a stub. You can help Wikipedia by expanding it. |
This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)
