Industrial phosphoric acid
1, Physiochemical properties
Industrial phosphoric acid is a kind of colorless transparent thick liquid.
2 , Use
Mainly used in the industries including plating, polishing and phosphate etc..
3 , Standard index : (GB2011-12)
|
Index |
Top quality |
First quality |
Qualified product |
Top quality |
First quality |
Qualified product |
| Chroma, black ≤ |
20 |
30 |
40 |
20 |
30 |
40 |
| Content of phosphoric acid % ≥ |
85 |
85 |
85 |
75 |
75 |
75 |
| Iron % ≤ |
0.002 |
0.002 |
0.005 |
0.002 |
0.002 |
0.005 |
Sulfate (based on SO4 )% ≤ |
0.003 |
0.005 |
0.001 |
0.003 |
0.005 |
0.001 |
Chloride (based on CL )% ≤ |
0.0005 |
0.0005 |
0.01 |
0.0005 |
0.0005 |
0.001 |
| Arsenic (AS)% ≤ |
0.0001 |
0.0005 |
0.01 |
0.0001 |
0.0005 |
0.001 |
Heavy metal(based on Pb ) % ≤ |
0.001 |
0.001 |
0.05 |
0.001 |
0.001 |
0.05 |
4, Packing
35kg plastic pail |
