Product Name:	Potassium Pyrophosphate
WCode:	16-033
CAS No.	7320-34-5
Molecular Formula:	K4P2O7
Formula Weight:	330.35

Physical and Chemical Properties
Physical State	Hygroscopic white crystals
Melting Point	1090°C (dehydrates below 300 C)
Boiling Point	> 1500 °C
Specific Gravity	0.96-1.2
Solubility in Water	Soluble
PH	10.0-10.5 (1% sol)
Stability	Stable under ordinary conditions
Applications
Water softener; metal cleaner; soap and detergent builder; sequestering agent; in electrode position of metals; enameling improvement; tin plating; china-clay purification; dyeing; oil-drilling mud’s; synthetic rubber production; cleaning agents and detergents - high solubility, hardness stabilization, soil dispersion; toothpaste - prevention of tarter
Sales Specification
Assay (K4P2O7)		96.00 % Min
Iron		0.005 % Max
Insolvable		0.08% Max
PH		10.5 +/-1
Orthophosphate (K2HPO4)		With 0.1 % N AgNO3
Cl		0.45% Max
Heavy Metal (As Pb)		0.01% Max
P2O5		41% Min

Packing

In 25 KG plastic woven bags