What is glycolic acid and what is glycolic acid mainly used for?

Be? Diphenyl Hydroxyacetic Acid Diphenyl Hydroxyacetic Acid Diphenyl Hydroxyacetic Acid Molecular Formula: C14H12O3 Molecular Mass: Boiling Point: 180 Melting Point: 149-151 Chinese Name: Diphenylglycolic Acid.

diphenylglycolic acid; -hydroxy--phenylacetic acid; 2-Hydroxy-2,2-diphenylacetic acid Product name: .acid

benzilic acid；acide diphenylhydroxyacetique；alpha,alpha-diphenylglycolic acid；alpha-hydroxy-alpha-phenylbenzeneacetic acid；alpha-hydroxy- alpha-phenyl-benzeneacetic aci Description: White monoclinic needle-like crystals, bitter in taste, melted into deep red at high temperatures. Melting point 151-152.

Soluble in hot water, ethanol, ether, slightly soluble in cold water and acetone.

Its potassium salt is highly soluble in water, and the solution is red; Its lead salts are amorphous precipitates that turn into a dark red solution when heated. Storage: Sealed and stored in a cool and dry manner. Production method: oxidized by benzene jujury; Transposed. Benzene is married to nitric acid.

Oxidation yields biphenyl yl, which is added to sodium hydroxide.

In solution, the reaction was 100-110 for 6h, diluted with water, and then adjusted to pH with dilute sulfuric acid. The oil slick was removed, activated carbon was added to decolorize, filtered, and sulfuric acid was added to the filtrate to pH value.

for 2, rejection filtration; Washing; Dry to get the finished product. Another method is to react benzene with potassium bromate: benzene couple; Water; Sodium hydroxide and potassium bromate were stirred at 80-90 for 3h, and then the reaction mixture was diluted with 2 times water, dilute sulfuric acid was added to neutralize to pH value of 8, insoluble matter was filtered, the filtrate was acidified to pH with hydrochloric acid, crystallized and filtered; Washing; 70-80 drying, that is, diphenylglycolic acid.

The yield of the two operation modes is about 80%. Uses: Intermediates for gastric rehabilitation, determination of zirconium, intermediates.

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Generally, it is phenylacetic acid.

Summary. At present, the mainstream at home and abroad is the use of spraying vapor phase antirust powder, what is the main use of glycolic acid?

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Glycolic acid is mainly used for:1As a cleaning agent, features:

High efficiency and low cost. 2.Used as an electroplating additive.

3.Organic synthesis intermediates with glycolic acid, ethyl ester, butyl ester, etc. auspicious ruler and 4

Used as an analytical reagent. Molecular formula : C2H4O3 structural formula:

hoch2cooh

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OK. Corrosion of carbon steel is severe.

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At present, the mainstream at home and abroad is the use of spraying vapor phase antirust powder

Glycolic acid is mainly used for:1

As a cleaning agent, characteristics: high efficiency, low cost.

2.Used as an electroplating additive.

3.Organic synthesis intermediates with glycolic acid, ethyl ester, butyl ester, etc.

4.Used as an analytical reagent.

Molecular formula: C2H4O3

Structural formula: Hoch2Cooh

The structural formula of acetic acid (CH3COOH) is as follows:

It is true that there is a hydroxyl group in acetic acid, but the carbonyl group (-co-) and hydroxyl group (-OH) together form a carboxyl group (-cooh-), so acetic acid belongs to carboxylic acid. As for acetic acid, this name is the common name for carboxylic acid, which is the main ingredient of vinegar for our daily consumption.

It mainly contains a carboxyl group called acetate, and the carboxyl group includes the hydroxyl group.

Colorless crystals that deliquescent. Soluble in water, soluble in organic solvents such as methanol, ethanol, ethyl acetate, slightly soluble in ether, insoluble in hydrocarbons. It has the dual properties of alcohol and acid, and decomposes when heated to the boiling point.

It is used for organic synthesis of anterior anterior ridges, etc. It is usually prepared by hydrolysis of chloroacetic acid under alkaline conditions. For more information, please refer to the encyclopedia.

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Intermediates for gastric rehabilitation, determination of zirconium, intermediates. used as an intermediate in organic synthesis; It is used as a raw material for medicine, and produces analgesic and antispasmodic drugs for the urinary system and digestive system. [Preparation or**] (1) With benzaldehyde as raw material, it reacts with hydrocyanic acid to generate benzene couple, and then oxidizes benzene couplet with nitric acid to generate biphenylyl, at 100, potassium hydroxide is added to prepare this magenta potassium salt, and then neutralized with dilute sulfuric acid, the color fades, stands and stratified, the lower layer is decolorized with activated carbon, filtered, the filtrate is acidified with dilute sulfuric acid, when pH = 2, white crystals are precipitated, filtered, washed with cold water, and dissolved and recrystallized with hot water can be prepared.

2) Take benzaldehyde as raw material, react with hydrocyanic acid to generate benzene couple, and then react with potassium bromate in sodium hydroxide solution at 80, then neutralize with sulfuric acid, filter, after decolorization, further acidification of the filtrate, to pH = time, precipitate white crystals, filter, wash with cold water, dissolve in hot water, and precipitate after cooling. (3) Using benzophenone as raw material, it reacts with hydrocyanic acid to generate diphenylhydroxyacetonitrile, which is then hydrolyzed in hydrochloric acid solution to generate diphenylhydroxyacetamide, which can be prepared by adding sodium hydroxide to neutralize. (4) Diphenylethylenedione can be prepared by addition with water and rearrangement under alkaline conditions.