Potassium bisulfate Information & Potassium bisulfate Links at HealthHaven.com

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
	(what is this?) (verify); 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.

[edit] See also

[edit] References

Merck Index of Chemicals and Drugs, 14th ed.

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