Phosphoric acid content≥: 75%
Application grade: technical grade
Executive standard: GB2091-2003
Color/appearance: Hazen
Quality grade: superior product
Specification: technical grade (85%, 80%, 75%): upon customer's request
Packing: 35kg;20L plastic drum; 200L plastic; upon customer's request
Uses: metal surface treatment agent, catalyst for organic reaction, etc.
Technical requirement:
1. Appearance: colorless transparent or yellowish viscous liquid
2. Technical phosphoric acid shall meet the following requirements (GB2091-2003)
| |
superior product |
First-class product |
Qualified product |
superior product |
First-class product |
Qualified product |
| Chroma/Hazen ≤ |
20 |
30 |
40 |
20 |
30 |
40 |
| Mass fraction of phosphoric acid (H3PO4), % ≥ |
85.0 |
85.0 |
85.0 |
75.0 |
75.0 |
75.0 |
| Mass fraction of chloride (Cl), % ≤ |
0.0005 |
0.0005 |
0.0005 |
0.0005 |
0.0005 |
0.0005 |
| Mass fraction of sulfate (SO4), % ≤ |
0.003 |
0.005 |
0.01 |
0.003 |
0.005 |
0.01 |
| Mass fraction of iron (Fe), % ≤ |
0.002 |
0.002 |
0.002 |
0.002 |
0.002 |
0.005 |
| Mass fraction of arsenic (As), % ≤ |
0.0001 |
0.005 |
0.01 |
0.0001 |
0.005 |
0.01 |
| Mass fraction of heavy metal (Pb), % ≤ |
0.001 |
0.001 |
0.05 |
0.001 |
0.001 |
0.05 |
|
.jpg){kind=small}