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 .

HAZARDS
Health hazards: a toxic effect is small, can inhibit thyroid function and blood-forming organs when repeated effect. Can cause allergic reactions . Can be absorbed through the skin . The product dust eye and upper respiratory tract irritation after inhalation cause coughing, chest discomfort. Oral stimulation of the gastrointestinal tract. Chronic effects: long-term exposure , headache , drowsiness , weakness , pale, puffy face , reduced basal metabolism , blood pressure, pulse rate slows, leukopenia. Damage to the skin , itchy skin , palms sweating , dermatitis, chapped .
Environmental hazards : hazard to the environment .
Explosion hazard: The product is flammable , toxic , irritating. [ 2 ]
First aid measures
Skin contact: Remove contaminated clothing, use soap and water thoroughly washed skin.
Eye contact: Did eyelid, mobile water or saline. Doctor.
Inhalation : rapidly from the scene to fresh air. Keep the airway patency. If breathing is difficult , give oxygen. If not breathing , give artificial respiration immediately. Doctor.
Ingestion : drink plenty of water, induce vomiting . Doctor. [ 2 ]
Fire-fighting measures
Hazardous combustion products: nitrogen oxides, sulfur oxides.
Fire fighting methods : the use of water, foam, carbon dioxide, sand fire. [ 2 ]
Spill response
Emergency treatment: isolation leak contaminated areas, restricting access. Cut off the fire source . Recommended emergency personnel wearing a dust mask ( full cover ) , wearing overalls general operations . Do not direct contact with leakage.
A small leak: clean shovel collection in a dry, clean, covered containers.
Large Leak: recycling or collection shipped to the waste disposal sites. [ 2 ]
Handling and storage
Handling Precautions : closed operation, local exhaust ventilation. The operator must go through specialized training , strict adherence to rules . Proposed operators wear self-absorption filter respirators , wearing chemical protective safety glasses, wear rubber gloves. Away from fire , heat, workplace smoking . Use explosion-proof ventilation systems and equipment. Avoid generating dust . Avoid contact with oxidizing agents , acids touch. Handling of light when light unloading , packaging and containers to prevent damage . Corresponding with the variety and quantity of fire equipment and emergency equipment leakage . Empty containers may be harmful residues .
Storage: Store in a cool , ventilated warehouse. Keep away from fire and heat. Packing seal. Should oxidants , acids, food chemicals stored separately and avoid mixing reservoir. Corresponding with the variety and quantity of fire equipment . Storage areas should be equipped with suitable material spill . [ 2 ]
Security terms
Wear suitable protective clothing and gloves.
Avoid release to the environment. Refer to special instructions / safety data sheets .
Risk Phrases
Harmful if swallowed .
There are few reports of carcinogenic effects.
Toxic to aquatic organisms , may cause long-term adverse effects in the aquatic environment.
There is a danger of injury to the fetus .

Physical Data
Boiling Point (º C, 101.3kPa): 82.42
Melting point (º C): 25.7
Relative density (g / mL, 20/4 º C): 0.775
Refractive index (n20 º C): 1.3878
Viscosity (mPa · s, 30 º C): 3.35
Flash Point (º C, open ) : 11
Flash point (º C): 450 ~ 500
Evaporation heat (KJ / kg, b.p.): 546.3
Melting heat (KJ / kg): 91.6
Heat of combustion (KJ / kg): 35540
Specific heat capacity (KJ / (kg · K), 27 º C, constant pressure ) : 3.04
Critical temperature (º C): 236
Critical pressure (MPa): 3.972
Boiling point rise in constant: 8.37
Conductivity (S / m): 2.9 × 10-7
Lower explosive limit (%, V / V): 2.35
Upper explosive limit (%, V / V): 8
Vapor pressure (kPa, 20 º C): 4.08
Expansion coefficient (K-1, 20 º C): 0.00133
Solubility: miscible with many organic solvents , water, alcohols , esters , ethers , aliphatic hydrocarbons, aromatic hydrocarbons and the like. Soluble in most organic solvents , such as alcohols , esters , ketones , aromatic and aliphatic hydrocarbons.
Temperature refractive index (n25): 1.382330
The relative density (25 ℃, 4 ℃): 0.775730
The relative density (20 ℃, 4 ℃): 0.7866d
Critical density (g · cm-3): 0.270
Critical volume (cm3 · mol-1): 275
Critical compressibility factor : 0.259
Eccentric Factor: 0.616
Lennard-Jones parameters (A): 5.9095
Lennard-Jones parameters (K): 334.79
Solubility parameter (J · cm-3) 0.5:21.492
vanderWaals area (cm2 · mol-1): 7.620 × 109
vanderWaals volume (cm3 · mol-1): 52.380
Vapor standard heat of combustion ( enthalpy ) (kJ · mol-1): 2690.77
Heat is generated by gas standards (enthalpy ) (kJ · mol-1): -312.42
Vapor standard entropy (J · mol-1 · K-1): 326.70
Vapor standard free energy (kJ · mol-1): -177.6
Vapor standard hot melt (J · mol-1 · K-1): 113.63
Liquid standard combustion heat ( enthalpy ) (kJ · mol-1): -2643.95
Liquid Standard claiming heat ( enthalpy ) (kJ · mol-1): -359.24
Liquid standard entropy (J · mol-1 · K-1): 192.88
Liquid standard free energy (kJ · mol-1): -184.68
Standard liquid melt (J · mol-1 · K-1): 218.6
Crystalline -phase standard combustion heat (enthalpy ) (kJ · mol-1): -2637.26
Standard claimed crystalline phase heat ( enthalpy ) (kJ · mol-1): -365.89
Crystalline phase standard entropy (J · mol-1 · K-1): 170.58
Crystalline phase standard free energy (kJ · mol-1): 184.68
Crystalline phase standard hot melt (J · mol-1 · K-1): 146.1