PHOSPHOROUS ACID
PHOSPHOROUS ACID
Publish: 2015-08-18
CAS No: 13598-36-2
UN No: 2834
Molecular Formula: H3PO3
Molecular Weight: 82.0
Hazard Class: 8
Usage: Used as raw material in the producing of plastic stabilizer, synthetic fiber and phosphate, intermediate material of pesticides. Also used in producing high performance water treating agent ATMP.
Packing Group: III
Packages: 25kg, 50kg, 500kg, 1000kg plastic bag lined with PE or by customer’s requirement.
Product has two grades: Top grade 99% and First grade 98.5%.Top grade produced from PCl3 and First Grade from Dimethyl Phosphite(DMP),with Iron content controlled from 5ppm,10ppm,to 50ppm upon customers different usages and demands.
Specification:
| Testing Item | Top Grade-I | Top Grade-II | First Grade III |
| Content(%) | 99.0 Min | 99.0 Min | 98.5 Min |
| Iron(ppm) | 5 Max | 10 Max | 50 Max |
| Chloride(CI)(%) | 0.001 Max | 0.01 Max | 0.02 Max |
| Sulfate(SO4) | 0.008 Max | 0.01 Max | 0.015 Max |
| Phosphate(PO4)(%) | 0.1 Max | 0.2 Max | 0.6 Max |
| Appearance | Pure White Crystal | Pure White Crystal | White Crystal |
| 70% Aqueous Solution Test | Colorless transparent |
Colorless transparent without impurities |
Colorless transparent without impurities |