Items | Specification |
Appearance | White or almost white powder |
Identification | Meets the requirements |
Specific Rotation | -0.10 ~ +0.10° |
Water | ≤ 0.5% |
Heavy Metals | ≤ 0.002% |
Redidue in Ignition | ≤ 0.2% |
Related Substances | Meets the requirements |
Benzene Sulfonic Acid | 27.3 ~ 28.7% |
Ethanol | ≤ 300ppm |
Toluene | ≤ 60ppm |
Benzene | ≤ 2ppm |
Acetic Acid | ≤ 600ppm |
Methylamine | ≤ 20ppm |
Ethyl Benzene Sulfonate | ≤ 5ppm |
Particle Size | Meets the requirements |
Assay | 98.0 ~102.0% |
Standard | USP33 |