Wholesale Pharmaceutical glycerine
Product Description
Glycerin is a colorless sweet clear viscous liquid. No smell. Warm and sweet. The national standard is called glycerol, can absorbmoisture from the air, also can absorb hydrogen sulfide, sulfur dioxide and hydrogen cyanide. Soluble in benzene, chloroform,
carbon tetrachloride, carbon disulfide, petroleum ether and oil. Relative density 1.26362. Melting point 17.8. Boiling point 290 C(decomposition). The refractive index of 1.4746. Flash point (open cup) 176 C. Acute toxicity: mg/kg LD50:31500 (rat)
BASIC ANALYSIS
| Item | Index |
| Appearance | Colorless clear syrupy liquid, aqueous solution (1 → 10) shows neutral reaction |
| Relative Density | not less than 1.2569 at 25ºC |
| [Identification] | |
| (1) | Should be positive reaction |
| (2) | its infrared absorption spectrum should be consistent with that of sample |
| [Inspection] | |
| Color | Not darker than comparison solution |
| Chloride | Not darker than comparison solution (0.0015%) |
| Sulfate | Not darker than comparison solution(0.002%) |
| Fatty acids and esters | Consumption of sodium hydroxide solution (0.1mol / l) should not more than 4.0ml |
| Acrolein, glucose and ammonium salt | May not yellow or occur ammonia smell |
| Readily carbonizable substance | Not darker than comparison solution |
| Residue on ignition | 1.2598 |
| Ferric salt | Not darker than comparison solution(0.0002%) |
| Heavy metals | Not more than two percent |
| [Content Determination] | C3H8O3 not less than 95.0% |
Application
In medicine, used to extract a variety of preparations, solvents, hygroscopic agents, antifreezes, sweeteners and produce topical ointment or suppository, also used extensively for the production of pharmaceutical intermediates.
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