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Home/Compounds/Industrial Chemical/Potassium bisulfate
HKO4S
136.17 g/mol
Industrial ChemicalDanger

Potassium bisulfate

CAS7646-93-7EC231-594-1
Category
Industrial Chemical
Compound Class
Inorganic Salt
Primary Use
flux for ores and siliceous compounds

Potassium bisulfate is an inorganic compound that exists as the potassium acid salt of sulfuric acid. It appears as a white, water-soluble solid and is primarily used as a flux for ores and siliceous compounds in industrial processes.

flux for ores and siliceous compounds

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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Related Compounds

StrongSame Parent

Ammonium bisulfate

CAS7803-63-6

Hair-wave preparations and organic catalysts

StrongSame Parent

Sodium bisulfate monohydrate

CAS10034-88-5

metal pickling and acid cleaning

StrongSame Parent

Rubidium sulfate

CAS7488-54-2

chemical compound for research or industrial supply

ReferenceSame Category

Hydrochloric acid

CAS7647-01-0

Industrial acid cleaning agent

ReferenceSame Category

Palladium dichloride

CAS7647-10-1

Catalyst precursor for chemical reactions

ReferenceSame Category

Sodium bromide

CAS7647-15-6

source of bromide ion

ReferenceSame Category

Cesium chloride

CAS7647-17-8

X-ray screens and radiographic contrast medium

Safety Reference

Corrosive
Corrosive
Harmful
Harmful
Danger
H314Causes severe skin burns and eye damage
H335May cause respiratory irritation
H318Causes serious eye damage
Regulatory Compliance1
  • CN Catalogue of Hazardous ChemicalsCNRegulation
    Listed· listed since 2015-05-01Source

Customs Tariff Classification

The international HS code for Potassium bisulfate (CAS 7646-93-7) is 2833.29, 3104.30.

HS code (international, 6-digit)

2833.29, 3104.30

EU CN code (8-digit)

2833 29 80, 3104 30 00

Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.

Identifiers
IUPAC Name

potassium hydrogen sulfate

InChIKey

CHKVPAROMQMJNQ-UHFFFAOYSA-M

SMILES

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

Synonyms (21)
  • Acid potassium sulfate
  • Caswell No. 682C
  • E-515(II)
  • HYDROGEN POTASSIUM SULFATE
  • Kaliumbisulfat
  • Monopotassium sulfate
  • Potassium acid sulfate
  • Potassium bisulfate
  • Potassium bisulphate
  • Potassium hydrogen sulfate
  • Potassium hydrogensulphate
  • Sal enixum
  • kalium hydrogen sulfate
  • potassium monohydrogensulfate

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