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Substance Name: Potassium pyrosulfate
RN: 7790-62-7
UNII: AVJ6ZST7L6
InChIKey: KAQHZJVQFBJKCK-UHFFFAOYSA-L

Molecular Formula

  • H2-O7-S2.2K

Molecular Weight

  • 254.321
 
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Names and Synonyms

Name of Substance

  • Potassium pyrosulfate

Synonyms

  • Dipotassium disulfate
  • Dipotassium pyrosulfate
  • EC 232-216-8
  • EINECS 232-216-8
  • Potassium disulfate (K2S2O7)
  • Potassium pyrosulfate
  • Potassium sulfate (K2S2O7)
  • UNII-AVJ6ZST7L6

Systematic Names

  • Dipotassium disulphate
  • Disulfuric acid, dipotassium salt
  • Disulfuric acid, potassium salt (1:2)
  • Potassium pyrosulfate (K2S2O7)
  • Pyrosulfuric acid, dipotassium salt

Registry Numbers

CAS Registry Number

  • 7790-62-7

FDA UNII

  • AVJ6ZST7L6

Related Registry Number

  • 7783-05-3 (Parent)

System Generated Number

  • 0007790627

Molecular Formulas

Molecular Formula

  • H2-O7-S2.2K

Molecular Formula Fragments

  • COMPONENT
  • H2-O7-S2
  • K

Structure Descriptors

InChI

1S/2K.H2O7S2/c;;1-8(2,3)7-9(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2

InChIKey

KAQHZJVQFBJKCK-UHFFFAOYSA-L

Smiles

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