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1,4 butynediol solid superior product
CAS:110-65-6
Chemical properties of butynediol: white orthorhombic crystal. Melting point 58 ℃, boiling point 238 ℃, 145 ℃ (2KPa), flash point 152 ℃, refractive index 1.450. Soluble in water, acid solution, ethanol and acetone, slightly soluble in chloroform, insoluble in benzene and ether.
Usage: butynediol can be used to produce butene glycol, butynediol, n-butanol, dihydrofuran, tetrahydrofuran γ- A series of important organic products such as butyrolactone and pyrrolidone can be further used to manufacture synthetic plastics, synthetic fibers (nylon-4), artificial leather, medicine, pesticides, solvents (N-methyl pyrrolidone) and preservatives. Butynediol itself is a good solvent and is used as a brightener in electroplating industry.
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Pale yellow highly toxic liquid 1,4-butynediol
1,4-butynediol solid, chemical formula C4H6O2, white orthorhombic crystal. Soluble in water, acid, ethanol and acetone, insoluble in benzene and ether. It can irritate the mucous membrane, skin and upper respiratory tract of the eyes. In industry, 1,4-butynediol solid is mainly prepared by Reppe method, catalyzed by butynediol copper or copper bismuth catalyst, and prepared by reaction of acetylene and formaldehyde under pressure (1 ~ 20 bar) and heating (110 ~ 112 ° C). The crude butynediol is obtained through reaction, and the finished product is obtained through concentration and refining.
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3-chloropropyne colorless highly toxic flammable liquid
3-chloropropyne is an organic compound with the structural formula ch ≡ cch2cl. The appearance is colorless flammable liquid. Melting point -78 ℃, boiling point 57 ℃ (65 ℃), relative density 1.0297, refractive index 1.4320. Flash point 32.2-35 ℃, almost insoluble in water and glycerol, miscible with benzene, carbon tetrachloride, ethanol, ethylene glycol, ether and ethyl acetate. It is obtained by reacting propargyl alcohol with phosphorus trichloride. Used as an intermediate in organic synthesis.
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Highly toxic liquid superior product propargyl alcoho
Colorless, volatile liquid with pungent odor. It is easy to turn yellow when placed for a long time, especially when exposed to light. It is miscible with water, benzene, chloroform, 1,2-dichloroethane, ether, ethanol, acetone, dioxane, tetrahydrofuran and pyridine, partially soluble in carbon tetrachloride, but insoluble in aliphatic hydrocarbons.
All Products
Specializing in the production of propargyl alcohol, 1,4 butynediol and 3-chloropropyne
