Potassium pyrophospate , AR,98% , 7320-34-5

Synonym(s):
Potassium diphosphate tetrabasic;Tetrapotassium diphosphate

CAS NO.：7320-34-5

Empirical Formula: K4O7P2

Molecular Weight: 330.337

MDL number: MFCD00011393

EINECS: 230-785-7

PRODUCT Properties

• Melting point: 1300 °C (lit.)
• Density: 2.33
• vapor pressure: 0Pa at 20℃
• solubility: soluble in H
• form: Powder
• color: White
• PH: pH (40g/l, 25℃) : 10.0～11.0
• Odor: Odorless
• PH Range: 10
• Water Solubility: SOLUBLE
• Sensitive: Hygroscopic
• Merck: 14,7663
• InChI: 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
• InChIKey: RYCLIXPGLDDLTM-UHFFFAOYSA-J
• SMILES: [K+].[K+].[K+].[K+].P(OP([O-])([O-])=O)([O-])([O-])=O

Description and Uses

Potassium pyrophosphate is mainly used as an emulsifier, quality improver and metal ion chelating agent. It can be found in herbicidal compositions as a spray adjuvant. It is also used as an anionic dispersant in water-based (latex) paints.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H319
• Precautionary statements: P264-P280-P305+P351+P338-P337+P313
• Hazard Codes: Xi
• Risk Statements: 36/37/38-36
• Safety Statements: 26-36-22
• WGK Germany: 2
• RTECS: JL6735000
• TSCA: Yes
• HS Code: 28353990
• Toxicity: LD50 skin in rabbit: > 4640mg/kg