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Hebei Yanxi Chemical Co.,Ltd.

LOCATIONProducts > Chemical Raw Materials > Phenylacetamide



Synonyms: Benzeneacetamide;






Phenylacetic acid amide;



Formula: C8H9NO

Exact Mass: 135.06800

Molecular Weight: 135.16300

PSA: 43.09000

Production methods:

Styrene, sulfur, liquid ammonia and water into the autoclave, under 165 ℃, about 6.5 MPa pressure reaction, and then heated to steam and hurried to hydrogen sulfide gas, add active carbon decoloring, cooling, crystallization, filtration, drying and phenyl ethyl amide.This method can be improved for pipelining continuous production, styrene and ammonium polysulfide solution according to the volume ratio 1:2 to cooperate, through high pressure pipeline, reaction temperature is 200 ℃, reaction pressure for 6-7.8 MPa, the reaction time of 1.5 h.The posttreatment process of reaction products is similar to the intermittent method of high pressure kettle.Raw material consumption quota: styrene (99%) 1117kg/t, sulphur (98.5%) 716kg/t, liquid ammonia (99%) 539kg/t, activated carbon 47kg/t.Another method of production is to heat up the hydrolysis of benzene acetonitrile (a mixture of benzyl chloride and sodium cyanide in dimethylamine aqueous solution) in sulfuric acid or hydrochloric acid.Adding phenylacetonitrile concentrated hydrochloric acid, stir to dissolve and 50 ℃ in half an hour.Then the water is slowly added to the crystal after cooling, and then it is filtered and washed with ice water.The raw material is washed with sodium carbonate solution, then washed with ice water, and then it can be purified with benzacetamide.Raw material consumption quota: benzyl chloride (95%) 1190kg/t, sodium cyanide (95%) 527kg/t, dimethylamine (industrial products) 20kg/t, sodium carbonate (industrial products) 185kg/t, sulphuric acid (92.5%) 1760kg/t.

Use:Used as an intermediate for drugs such as penicillin and phenobarbital.It is also used to prepare phenylacetic acid, spices and pesticides to kill rat apis.

Appearance & Physical State: White krystalline powder.

Density: 1.098 g/cm3

Melting Point: 157-158ºC

Boiling Point: 280-290ºC (dec.)

Flash Point: 142.6ºC

Refractive Index: 1.552

Vapor Pressure: 0.000537mmHg at 25°C

Safety Info

RTECS: AC7705000

Safety Statements: S22-S24/25

HS Code: 3004909090




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Hebei yanxi chemical co. LTD. has expanded a compositive entity from initially only as a small manufacturer. The company dedicated to the development, production and marketing of chemicals. Main products are Titanium dioxide(CAS13463-67-7). Lead acetate (cas: 6080-56-4), phenylacetamide (cas 103-81-1), citric acid (5949-29-1), methyl-pyridine (35575-96-3) 2-Phenylacetamide (CAS 103-81-1);Trimethylpyruvic acid (CAS 815-17-8);2-Hydroxypropyl methacrylate (CAS 27813-02-1......


Hebei Yanxi Chemical Co.,Ltd.
TEL:86-156 330 66222
Address:Zhang Ge Village,Fengtai Township, Guangzong County, Xingtai City, Hebei Province, China