There are two types of industrial Polyphosphoric acid：115 % acid and 105 % acid.
The appearance is colorless transparent or slightly light yellow thick liquid.
Application: it Mainly used in organic synthesis, pharmaceutical intermediates, spice intermediates, leather, chemical industry and so on, It can also be used as a substitute of orthophosphate.
Physical and chemical properties：
items | Index dex | |||||
115 % acid | 105 % acid | |||||
superior quality | First class quality | qualified | superior quality | First class quality | qualified | |
Hazen ≤ | 20 | 30 | 40 | 20 | 30 | 40 |
Phosphoric acid（H3PO4），wt％ | ≥115. 0 | 104-106 | ||||
phosphorus pentoxide（P2O5），wt％ | ≥83. 3 | 75. 3~76. 7 | ||||
Chloride（calculate according to C1，wt%≤
| 0. 0003 | 0. 0005 | 0. 0005 | 0. 0003 | 0. 0005 | 0. 0005 |
Iron(Fe)，wt% ≤ | 0. 001 | 0. 002 | 0. 002 | 0. 001 | 0. 002 | 0. 002 |
Arsine(As)，wt% ≤ | 0. 004 | 0. 008 | 0.010 | 0. 000 5 | 0. 008 | 0. 010 |
Heavy metals（calculate according to Pb），wt%≤ wt% ≤ | 0. 001 | 0. 001 | 0. 002 | 0. 001 | 0. 001 | 0. 002 |
Package: we can pack it according to customers requirement.
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