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
|No.||Items of Analysis||Unit||105% PPA||115% PPA|
|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|