Potassium hydrogen sulfite

Basic Information

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CAS Number

4429-42-9

Molecular Formula

HKO3S

Molecular Weight

120.17 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Water Treatment Chemicals Coagulants and Flocculants Inorganic Coagulants

Basic Physical Properties

Melting Point

190 °C

Solubility

H2O: 0.1 M at 20 °C, clear, colorless

SMILES

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OS(=O)[O-].[K+]

InChI

InChI=1S/K.H2O3S/c;1-4(2)3/h;(H2,1,2,3)/q+1;/p-1

InChIKey

DJEHXEMURTVAOE-UHFFFAOYSA-M

LogP

0.20420

Complexity

33.9

Synonyms & References

English

Potassium hydrogen sulfite
potassium hydrogensulfite
Kaliumbisulfit
Potassium sulfite (KHSO3)
Potassium sulfite, hydrogen
7773-03-7
Potassium acid sulfite
Potassium hydrogen sulphite
E-228
POTASSIUM BISULPHITE
POTASSIUM BISULFITE [MART.]
DJEHXEMURTVAOE-UHFFFAOYSA-M
potassium;hydrogen sulfite
QJK5LO891P
UNII-QJK5LO891P
INS NO.228
Sulfurous acid, potassium salt (1:1)
HSDB 1263
EINECS 231-870-1
Sulfite, potassium metabi-
INS-228
POTASSIUM BISULFITE [HSDB]
POTASSIUM BISULFITE [II]
AKOS025293926
NS00131250
DTXSID6064795
Monopotassium sulfite
Sulfurous acid, monopotassium salt
4429-42-9
Q412524
POTASSIUM BISULFITE

Customs Code

2832200000

FAQ

What is Potassium hydrogen sulfite (CAS: 4429-42-9)?

Potassium hydrogen sulfite (CAS: 4429-42-9) is a chemical compound with the formula KHSO3. It is a white solid that is slightly soluble in water. It is a reducing agent and a mild acid.

What are the main uses of Potassium hydrogen sulfite (CAS: 4429-42-9)?

Potassium hydrogen sulfite (CAS: 4429-42-9) is used in the food industry as a preservative and antioxidant. It is also employed in the pharmaceutical industry for preparing other sulfite compounds and in analytical chemistry as a reagent.

Is Potassium hydrogen sulfite (CAS: 4429-42-9) safe?

Potassium hydrogen sulfite (CAS: 4429-42-9) is generally considered safe when used in accordance with recommended guidelines. However, it should be handled with care due to its reducing properties. Proper ventilation and personal protective equipment are recommended.

How should Potassium hydrogen sulfite (CAS: 4429-42-9) be stored?

Potassium hydrogen sulfite (CAS: 4429-42-9) should be stored in a dry, cool place away from direct sunlight and moisture. It should be kept in a tightly sealed container to prevent degradation. Avoid exposure to heat and maintain a stable temperature.