| Appearance | light brown powder |
| Solubility | Easily soluble |
| composition | Sodium methylene dinaphthalene sulfonate |
| Ion type | Negative |
| Sodium sulphate content,% | 18 max |
|
PH
(1% water solution) |
7-9 |
|
Content of calcium and magnesium
Ion ,PPM |
4000 |
| Solid content, % min | 92 |