Hangzhou Zanyu Oleo-Technology Co.,Ltd.(Hangzhou Oleochemicals Co., Ltd.) is reformed from Hangzhou Oil and Fat Chemical Factory in 2000. 
Hangzhou Oil and Fat Chemical Factory was a state owned enterprise, which was established by former Ministry of Light industry of China in January, 1973. 
Company for the Chinese food additives industry top 100 enterprises, China Association of detergents and oil chemical branch president units, Zhejiang Province, the first batch of standard innovative enterprises..
In 2010 the company moved to the overall ring Hangzhou Bay Industrial Zone with advanced manufacturing base - Linjiang Industrial Park
Company advanced production technology, high-quality, various economic and technical indicators in the same industry-leading position..
Home > Product > Glycerin
CAS No.: 56-81-5
Structural formula:
Standard: CP 2010
Properties and Uses
Properties: colorless, clear syrupy liquid.
Uses: 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.
Physical and chemical index
| Item | Index |
| [Properties] | |
| 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% |
