322431

Potassium pyrophosphate

97%

• Synonym(s): Potassium diphosphate tetrabasic, Tetrapotassium diphosphate
• Linear Formula: K₄P₂O₇
• CAS Number: 7320-34-5
• Molecular Weight: 330.34
• EC Number: 230-785-7
• MDL number: MFCD00011393
• UNSPSC Code: 12352302
• PubChem Substance ID: 24859317
• NACRES: NA.23

Properties

• assay: 97%
• form: solid
• mp: 1300 °C (lit.)
• SMILES string: [K+].[K+].[K+].[K+].[O-]P([O-])(=O)OP([O-])([O-])=O
• InChI: 1S/4K.H4O7P2/c;;;;1-8(2,3)7-9(4,5)6/h;;;;(H2,1,2,3)(H2,4,5,6)/q4*+1;/p-4
• InChI key: RYCLIXPGLDDLTM-UHFFFAOYSA-J

Description

General description

Potassium pyrophosphate (K₄P₂O₇) is a water soluble, buffering and chelating agent. It can also be used as an ionic dispersant to form a low viscous solution. It is a biocompatible and a non-toxic compound that is commonly used as a food additive.

Application

K₄P₂O₇ can be used in the preparation of an electrolytic solution, which can further be used in the fabrication of lithium ion batteries and arrays of copper nanowires.

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H319
• pcodes: P264 - P280 - P305 + P351 + P338 - P337 + P313
• Hazard Classifications: Eye Irrit. 2
• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Gloves