Ethyl acetoacetate Raw Materials powder Eaa

CAS:141-97-9

MF:C6H10O3

MW:130.14

EINECS:205-516-1

Specification​: 99% min Ethyl acetoacetate powder

Sample:Ethyl acetoacetate powder

Packaging:1kg/bag, 25kg/drum

Brand: Raw Materials

Appearance:colorless liquid

Storage: Cool Dry Place

Shelf Life: 2 Years

Test Method: HPLC

Ethyl acetoacetate powder resolve resolution

Add ethanol and concentrated sulfuric acid in the esterification pot according to the ratio, stir and heat. When the temperature rises to 82°C, start to add diketene dropwise. The esterification temperature shall not exceed 130°C. Continue to reflux until the reaction temperature does not change and there is no diketene in the esterification liquid to end the reaction.

Lower the feed liquid temperature to below 120°C, remove low-boiling substances under the condition of controlling the reflux ratio of 1:1. When low-boiling substances are no longer distilled out, increase the vacuum degree to 86.6kPa, continue to remove low-boiling substances, and when the top temperature rises to above 100°C, increase the vacuum degree to 97.3 kPa, and distill out the finished product with a content greater than 97%.

Uses and functions of Ethyl acetoacetate.

It is used in medicine to synthesize aminopyrine, vitamin B, etc. It is also used in the preparation of azo yellow dyes and in the blending of apple essence and other fruity essences.

It is used in the pharmaceutical industry to make aminopyrine, vitamin B, etc. It is used as a raw material for synthesizing dyes in the dye industry and for dyeing film substrates. It is used in the paint industry to make clear. It is used as a solvent and a material for synthesizing organic compounds in the organic industry.

It is used to test thallium and determine calcium oxide, calcium hydroxide and copper; it is used as a complex indicator for the determination of high iron; it is used as a gas chromatography stationary liquid (the maximum use of turbidity is 50°C, the solvent is acetone), to separate and analyze low-level hydrocarbon isomers, and to separate n-, iso-1-butene and cis-, trans-2-butene.

Advantage of Ethyl acetoacetate.

Product Method of Bulk Ethyl acetoacetate.

1. Esterification of diketene and ethanol Diketene and anhydrous ethanol are esterified under the catalysis of concentrated sulfuric acid to obtain crude ethyl acetoacetate. Then the finished product is obtained by vacuum distillation.

2. Ethyl acetate self-condensation method Two molecules of ethyl acetate are self-condensed in the presence of sodium metal to obtain.