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CAS 7320-34-5

CAS 7320-34-5 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 7320-34-5
CAS 7320-34-5PubChem CID 23740

Potassium pyrophosphate

Potassium tetrapyrophosphate is a whitish-colored powdered solid. It is toxic by ingestion, and/or inhalation. Contact with the substance should be avoided. — CAMEO Chemicals

IUPAC name
tetrapotassium;phosphonato phosphate
Molecular formula
K4O7P2
Molecular weight
330.34 g/mol
Exact mass
329.7667523 Da
Topological polar surface area
136.0 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
7
Covalent units
5
Defined stereocentres
0

Also known as

Potassium diphosphateTKPPTETRAPOTASSIUM PYROPHOSPHATEDiphosphoric acid, tetrapotassium saltTetrapotassium diphosphoratePyrophosphoric acid, tetrapotassium saltB9W4019H5GRefChem:897424
16 more reported names
230-785-7Tetrapotassium diphosphatePotassium pyrophospateDiphosphoric acid, potassium saltEINECS 230-785-7UNII-B9W4019H5GTetra Potassium PyrophosphatePotassium pyrophosphate AnhydrousEC 230-785-7Diphosphoric acid, potassium salt (1:4)tetrapotassium phosphonato phosphateEINECS 233-338-4Diphosphoric acid tetrapotassium saltK4O7P2Potassium diphosphate tetrabasicPotassium pyrophosphate, anhydrous
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External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 7320-34-5

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No records found for this CAS number.

How CAS 7320-34-5 is used on this site

CAS 7320-34-5 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 7320-34-5 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.