USD $1.00-1.00 / Kilogram
USD $9.00-99.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $2.00-10.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $2.00-10.00 / Kilogram
USD $2.00-10.00 / Kilogram
USD $2.00-10.00 / Kilogram
USD $2.00-10.00 / Kilogram
ethyl acetate chemical properties |
mp | −84 °c(lit.) |
bp | 76.5-77.5 °c(lit.) |
density | 0.902 g/ml at 25 °c(lit.) |
vapor density | 3 (20 °c, vs air) |
vapor pressure | 73 mm hg ( 20 °c) |
refractive index |
n |
fema | 2414 |
fp | 26 °f |
storage temp. | 2-8°c |
water solubility | 80 g/l (20 ºc) |
merck | 14,3757 |
brn | 506104 |
stability: | stable. incompatible with various plastics, strong oxidizing agents. highly flammable. vapour/air mixtures explosive. may be moisture sensitive. |
cas database reference | 141-78-6(cas database reference) |
nist chemistry reference | ethyl acetate(141-78-6) |
epa substance registry system | acetic acid ethyl ester(141-78-6) |
limited use | fema (mg/kg). soft drinks: 67; cold drink: 99; candy: 170; bakery: 170; pudding class: 200; gum: 1400; wine: 50 to 65. |
chemical properties | it is colorless, flammable liquid with fruit fragrance. it is miscible with various kinds of organic solvents such as ethers, alcohols, halogenated hydrocarbons, and arene. it is also slightly soluble in water. |
production method |
the direct esterification process is the major route of domestic industrial production of ethyl acetate. take acetate and ethanol as the raw material, sulfuric acid as the catalyst for direct esterification to obtain ethyl acetate, and then by dehydration, fractionation to obtain refined products. the acetaldehyde condensation method use aluminum alkyl as catalyst, perform the condensation reaction of acetaldehyde to obtain the ethyl acetate. most foreign industry adopts this technology. direct esterification of ethylene and acetic acid to obtain ethyl acetate. ethyl acetate may also be produced from the reaction between acetate and acetic anhydride or vinyl ketone and ethanol; it can also be obtained from the reactions of two molecules of acetaldehyde upon the catalysis of aluminum ethanol. in addition, the industrial production of acetate through butane oxidation can also produce ethyl acetate as byproduct. 1 esterification it is derived from the direct esterification between acetic acid and ethanol in the presence of sulfuric acid, production process includes: continuous and intermittent. (1) gap process. add acetic acid, ethanol and a small amount of sulfuric acid to the kettle and heat and reflux for 5-6h. then ethyl acetate was distilled off, and washed with 5% sodium chloride water; further use the mixture solution of sodium hydroxide and sodium chloride for neutralizing to ph = 8. further apply calcium oxide solution to wash it and add anhydrous potassium carbonate to dry it. finally distill it, and collect the 76-77 °c fractions to obtain the final products. (2) continuous process. add 1: 1.15 (mass ratio) of ethanol and acetic acid continuously into the esterification column reactor and perform the esterification reaction at 105-110 °c in the catalysis of sulfuric acid. the resulting ethyl acetate and water is distilled out in the tower top in the form of azeotrope; after condensation and stratification, the upper portion of the ester is refluxed with the remaining portion entering into crude tank; the lower layer of water is discarded after the recycling of ethyl acetate. the crude ester went through the distillation tower for removing a small amount of water and then entered into the refining tower again to obtain the final product at the top of the tower. this process is better than gap method. 2 acetaldehyde methods acetaldehyde is converted into ethyl acetate in the catalysis of aluminum ethanol. add acetaldehyde, aluminum ethanol continuously to two reactors in tandem; the reaction was carried out at 0-20 °c with the outlet conversion rate being higher than 99.5% in the second reactor. then further perform distillation to obtain the ethyl acetate with a yield of 95% -96%. this process is more economical. |
category | flammable liquid |
toxicity grading | poisoning |
chemical properties | colorless liquid |
usage | suitable for hplc, spectrophotometry, environmental testing |
usage | meets urethane grade requirements (h2o ≤ 0.05%) |
usage | ethyl acetate is generally used as a solvent in organic reactions. |
acute oral toxicity | rat ld50: 5620 mg/kg; oral - mouse ld50: 4100 mg / kg |
irritation data | eye-people 400 ppm |
hazardous characteristics of explosive | explosive when mixed with air |
flammability and hazard characteristics | it is flammable in case of fire, high temperature, and oxidant with burning causing irritated smoke |
storage characteristics | treasury: ventilation, low-temperature and dry; store it separately from oxidants |
extinguishing agent | dry powder, dry sand, carbon dioxide, foam, and 1211 fire extinguishing agent |
professional standards | twa 1400 mg / m³; stel 2000 mg / m³ |
general description | a clear colorless liquid with a fruity odor. flash point 24°f. less dense than water. vapors heavier than air. |
air & water reactions | highly flammable. slightly soluble in water. ethyl acetate is slowly hydrolyzed by moisture. |
reactivity profile | ethyl acetate is also sensitive to heat. on prolonged storage, materials containing similar functional groups have formed explosive peroxides. ethyl acetate may ignite or explode with lithium aluminum hydride. ethyl acetate may also ignite with potassium tert-butoxide. ethyl acetate is incompatible with nitrates, strong alkalis and strong acids. ethyl acetate will attack some forms of plastics, rubber and coatings. ethyl acetate is incompatible with oxidizers such as hydrogen peroxide, nitric acid, perchloric acid and chromium trioxide. violent reactions occur with chlorosulfonic acid. . socl2 reacts with esters, such as ethyl acetate, forming toxic so2 gas and water soluble/toxic acyl chlorides, catalyzed by fe or zn (spagnuolo, c.j. et al. 1992. chemical and engineering news 70(22):2.). |
health hazard | headache, irritation of respiratory passages and eyes, dizziness and nausea, weakness, loss of consciousness. |
fire hazard | highly flammable: will be easily ignited by heat, sparks or flames. vapors may form explosive mixtures with air. vapors may travel to source of ignition and flash back. most vapors are heavier than air. they will spread along ground and collect in low or confined areas (sewers, basements, tanks). vapor explosion hazard indoors, outdoors or in sewers. runoff to sewer may create fire or explosion hazard. containers may explode when heated. many liquids are lighter than water. |