Tetra Potassium Pyrophosphate

Taxonomy:Potassium phosphate
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Date of release:2018/07/12
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Detailed introduction

TETRA POTASSIUM PYROPHOSPHATE (TKPP)

Chemical Name	Tetra Potassium Pyrophosphate
Synonyms	TKPP
Molecular Formula	K4P2O7
HS Code	28352400
CAS NO.	7320-34-5
Standard Executed	FCC/E450

Technical Specification

No.	Specifications	Unit	Food Grade Standard
1	Appearance		white powder
2	K4P2O7	%	≥96.5
3	Iron(Fe)	PPM	≤10
4	Water insoluble matter	%	≤0.1
5	Heavy Metals, (as Pb)	PPM	≤10
6	Arsenic(As)	PPM	≤3
7	F	PPM	10
8	PH Value		10.5±0.5
9	PB	PPM	4
10	Ortho Phosphate		PASS
9	Bulk density	g/ml	0.6
10	granularity		Powder

Properties

Anhydrous tetra Potassium Phosphate is in white powder or granular. Relative density 2.534 g/cm3 and melting point 1109℃; It is apt to absorb humidity in the open air to deliquescent; Soluble in water but insoluble in ethanol, and at 25℃,its solubility in water is 187g/100g water; It can chelate with alkaline metals ions or heavy metal ions.

Application

It can used as a buffering reagent as well as stabilizer for hydrogen peroxide; It can also be used as dispersion agent for ceramic, clay, latex and pigments etc.

Packaging

It is packed with polyethylene bag as inner, and a composite paper bag as the outer layer. The net weight of each bag is 25kg.

Storage and Transport

It should be stored in a dry,ventilative and clean warehouse, kept away from water and moisture, futhermore, it shoud be stored separately from poisonous.Its expiry date is 24 month.