P-aminobenzenesulfonic acid [ 121-57-3 ]
- Appearance
- greyish-white crystals or powder
|
Items |
HG/T3678-2000 |
|
Appearance |
White to offwhite powder |
|
Assay(Total amine) |
≥99.0% |
|
Assay of phenylamine |
≤0.02% |
|
Water insolubles |
≤0.10% |
|
Dissolution test(Na2CO3 Sol.) |
Pass |