SPECIFICATION
| Appearance | White needle, flaky crystal or crystalline powder. |
| Purity | 98.5%－101% |
| Mesh size | 30~80 |
| Loss on drying | ≤1.0% |
| pH (10% solution) | 5.5~7.5 |
| Aniline | ≤1ppm |
| Sulfate (SO4) | ≤500ppm |
| Selenium | ≤30ppm |
| Lead | ≤1ppm |
| Heavy metal (as Pb) | ≤10ppm |
| Arsenic (As) | ≤3ppm |
| Dicyclohexylamine | ≤1ppm |
| Cyclohexylamine | ≤10ppm |
| Transparency | ≥95% |
MOLECULAR STRUCTURE：
Molecular Formula:C6H12NNaO3S
