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Potassium pyrophosphate Structure

Potassium pyrophosphate

Chemical 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
Substances Added to Food (formerly EAFUS) POTASSIUM PYROPHOSPHATE
SCOGS (Select Committee on GRAS Substances) Potassium pyrophosphate
FDA 21 CFR 173.315
CAS DataBase Reference 7320-34-5(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII B9W4019H5G
EPA Substance Registry System Tetrapotassium pyrophosphate (7320-34-5)

Safety

Symbol(GHS)
Signal wordWarning
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
NFPA 704:
0
2 1

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