MW: 218.2
EINECS: 203-051-9
Mol File : 102-76-1.mol
Vapor density : 7.52 (vs air)
FEMA: 2007
Refractive index : n25 / D 1.429-1.431 (lit.)
Flash Point : 300 ° F
Water Solubility : 64.0 g / L (20 º C)
Merck: 9589
Stability :. Stable Incompatible with strong oxidizing agents Combustible..
NIST Chemistry :1,2,3-Propanetriol, triacetate (102-76-1)
EPA Substance :1,2,3-Propanetriol, triacetate (102-76-1)
3 Chemical Properties
Colorless , odorless , oily liquid. Unlike most alcohol, ether, benzene, chloroform and other organic solvents , soluble in acetone , insoluble in mineral oil. Slightly soluble in water. Solubility in water at 25 ℃ to 5.9g/100ml. [ 1 ] is dissolved in alcohol, ether , benzene , chloroform , and castor oil, linseed oil , but do not dissolve . Can dissolve cellulose nitrate, cellulose acetate , acrylic resin, polyvinyl acetate, and the like. Natural rosins have dissolved to a certain extent , but not with a polyvinyl chloride , polystyrene, chlorinated rubber mixture.
4 Edit Content Analysis
Accurately weighed sample of about 1g, release an appropriate pressure bottle , plus 1mol / L. Potassium hydroxide solution and isopropanol 25.0ml 15ml, Gasser , put in with the cloth wrapped in a canvas bag . Release a 98 ℃ ± 2 ℃ in a water bath heated 1h, bath water level should be slightly higher than the level of the bottle . Remove the bottle from the bag , the air cooled to room temperature , loosen the cloth and cork the bottle to release excess pressure , then the cloth removed. Add phenolphthalein test solution (TS-167) 6 ~ 8 drops of 0.5mol / L sulfuric acid titration of excess base to pink just disappears. While the blank test as above . Per milliliter 0.5mol / L sulfuric acid equivalent glycerol triacetate (C9H14O6) 36.37mg.
5 Uses Edit
1 , used as a plasticizer and spices fixative , ink solvents , also used in the synthesis of pharmaceuticals and dyes.
2, used as chromatographic stationary phase, solvent , plasticizer and spices fixative .
3 , moisturizers ; carrier solvent ; plasticizers ; absorb carbon dioxide from the natural gas . According to the provisions of GB 2760 ~ 96 prospective for spices.
Use as a cigarette filter and perfume fixative binder , solvent, plasticizer . And can be used in cosmetics , casting , pharmaceuticals, dyes and other industries. This product is non-toxic, non-irritating .
4, the fixing agent as perfumes , solvents , toughening. Used in cosmetics, pharmaceuticals and the production of dyes , used as a plasticizer , such as cigarette filter tips .
6 allow residues of the standard editing
Food
Foods with spices : spices used in the preparation of each flavor component in GB 2760 may not exceed the maximum allowed amount and the maximum allowable residues .
Gum candy
Candy gum base agent material : according to production needs appropriate use ( except for special provisions ) .
7 Production Method Editor
1 , by the esterification of glycerol with acetic acid . Preheated to 50-60 ℃ glycerol , acetic acid , benzene and sulfuric acid. Was heated with stirring to reflux dehydration, after the recovery of benzene , was added acetic anhydride was heated 4h. After cooling, neutralized with 5 % sodium carbonate to pH 7 , layer of water , crude oil was dried with calcium chloride . Vacuum distillation , collecting 128-131 ℃ (0.93kPa) fractions, namely glycerol triacetate .
2 , followed by the hot acetic anhydride and purified by vacuum distillation glycerol derived .
8 Safety Information Editor
Safety Instructions :23 -24/ 25
WGK Germany: 1
RTECS No. : AK3675000
HS CODE: 29153930
Toxicity : ADI does not make special provisions (FAO / WHO, 2001).
GR.AS (FDA, § 182.1901,2000).
LD50 3000mg/kg ( rat, oral ) .
Use limit : FEMA (mg / kg): Soft drinks 190 ; cold 60 ~ 2000 ; candy 560 ; bakery products 1000 ; gum 4100 .
