Complaint
| Iteam | Pharmaceutical grade | Results |
| Appearance | Colorless transparent liquid | Colorless transparent liquid |
| Purity,% | ≥99.95 | 99.99% |
| Crystallization point, ºC | ≥18.30 | >18.30 |
| Acid value(KOH),mg/g | ≤ 0.01 | 0.006 |
| Transmittance, 400nm % | ≥98.0 | >99.0 |
| Refractive index(20ºC) | 1.4778 ~1.4790 | 1.4790 |
| Moisture, % | ≤ 0.05 | 0.01 |
| Reducing substance, ( as methanal )% | ≤0.10 | 0.005 |
| Color ( APHA ) | ≤10 | < 5 |
| Density, 25ºC, kg/m3 | ≥1.093 | 1.098 |
| PH | 6 ~ 8 | 6.9 |
| Na, ug/kg | ≤50 | < 1 |
| Fe, ug/kg | ≤50 | < 1 |
| Ca, ug/kg | ≤50 | < 1 |
| Conclusion | Qualified, Meet standard of Q/CZDL 01-2017 | |
