Polyphosphoric acid

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Product description

Parameters

POLYPHOSPHORIC ACID (PPA)

Molecular formula: Hn + 2PnO3n + 1

Molecular weight: 337.93

Properties: PPA is a colorless transparent viscous liquid, easy to deliquesce, non-crystalline, corrosive, can be miscible with water and hydrolyzed to orthophosphoric acid, specific gravity 2.1g / CM3.

Uses: Polyphosphoric acid is widely used in medicine, perfume, leather, chemical industry and other industries. It is used as a compound cyclizing agent, acidulant and dehydrating agent in organic synthesis. It can also be used as a substitute for orthophosphoric acid.

Packing: IBC barrel

Specifications of Polyphosphoric Acid
No.	Items of Analysis	Unit	105% PPA			115% PPA
No.	Items of Analysis	Unit	Premium	First grade	Qualified product	Premium	First grade	Qualified product
1	（H3PO4）	%	104~106			≥115.00
2	P₂O₅	%	75.3~76.7			≥83.30
3	Chloride as Cl	%	0.0003	0.0005	0.0005	0.0003	0.0005	0.0005
4	Iron as Fe	%	0.001	0.002	0.002	0.001	0.002	0.002
5	Arsenic as As	%	0.004	0.008	0.010	0.0005	0.008	0.010
6	Heavy metal as Pb	%	0.001	0.001	0.002	0.001	0.001	0.002
7	Color	Apha	20	30	40	20	30	40