>ncluded that the short-term and long-term intake of phosphonic acid residues resulting in chard/beet leaves and honey from the use of potassium phospho
Cetyl dimethyl (2-sulfite) ethyl ammonium
Time of Update: 2022-01-03
When this product is used for cleaning in the on-site system, it has a good corrosion inhibition effect at a dosage of 80-100mg/L .
Diflufen-ethyl, diflufen-ethyl and diflufenican
Time of Update: 2021-12-29
3 Residue: diflufenican .
4 Maximum residue limit: should meet the requirements of Table 40 .
The domestic ethyl acetate market is firm on January 28
Time of Update: 2021-11-27
On January 28, the domestic ethyl acetate market was strong.
Ethyl acetate has good cost support.
Ethyl acetate for industrial use (2)
Time of Update: 2021-11-23
is not more than 25% of the arithmetic mean of the two determination values . >The industrial ethyl acetate prepared
Ethyl acetate for industrial use (1)
Time of Update: 2021-11-23
1 ScopeThis standard specifies the industrial ethyl technical requirements, test methods, inspection rules and signs, packaging, transportation, storage and safety, this standard applies to industrial ethyl acetate production, testing and marketing .
Industrial ethyl acrylate (2)
Time of Update: 2021-11-07
1 Sampling of ethyl acrylate products shall be conducted in accordance with GB/T6680, and barreled products shall be packaged in one batch per day .
Industrial ethyl acrylate (1)
Time of Update: 2021-11-07
5-1998 Determination of polymerization inhibitor in industrial acrylic acid and ester3 requirementsThe quality of industrial ethyl acrylate should meet the requirements of Table 1 .
Sodium styrene sulfonate-ethyl acrylate trimethyl ammonium chloride copolymer
Time of Update: 2021-11-05
) initiates the polymerization reaction at 20 to 45°C for 4 to 8 hours to obtain sodium styrene sulfonate ethyl acrylate trimethyl ammonium chloride copolymer .
Acrylamide-ethyl acrylate trimethylammonium chloride copolymer
Time of Update: 2021-10-21
Acrylamide-ethyl acrylate trimethylammonium chloride copolymer>[Structural formula]>>[Preparation method] The preparation
Industrial ethyl acetoacetate (1)
Time of Update: 2021-10-15
1 Subject content and scope of applicationThis standard specifies the technical requirements, test methods, inspection rules and signs, packaging, transportation and storage of ethyl acetoacetate .
Industrial ethyl acetoacetate (2)
Time of Update: 2021-10-15
5. 6 If one item of the inspection result does not meet the requirements of the standard, the manufacturer and user shall take samples from twice the amount of packaging for inspection.
Glycine ethyl ester hydrochloride (1)
Time of Update: 2021-10-04
4 requirementsGlycine ethyl ester hydrochloride should meet the technical requirements shown in Table 1 .
Glycine ethyl ester hydrochloride (three)
Time of Update: 2021-10-04
Under the conditions of packaging, transportation and storage in accordance with this standard, glycine ethyl ester hydrochloride has a shelf life of 12 months from the date of production .
Glycine ethyl ester hydrochloride (two)
Time of Update: 2021-10-04
4 Result calculationThe mass fraction of glycine ethyl ester hydrochloride content, the value is expressed in %, calculated according to formula (1): Where:V 1 —The value of the volume of the silver nitrate standard titration solution (5.
Product standard for the process flow of ethyl chloroacetate
Time of Update: 2021-08-14
6. Production processPut 950 kg of chloroacetic acid and 217 kg of anhydrous ethanol into the esterification reactor, and heat to reflux with stirring.
Product performance and production principle of ethyl acetate
Time of Update: 2021-08-14
6. Production processAdd 400kg of acetic acid, 375kg of ethanol, and 3kg of concentrated sulfuric acid to the enamel reaction kettle, stir, heat, and reflux for 6 hours.
Product performance and production principle of ethyl p-aminobenzoate
Time of Update: 2021-08-14
When it is cooled to 15°C, filter with a centrifuge, and then wash with water to a pH of 6-7 to obtain crude ethyl p-aminobenzoate .
