With regard to 1,4 butanediol, distinguish 1 butanol 2 butanol tert butanol 2,3 butanediol

2,3-Butanediol can be quantitatively reacted with HiO4 (periodic acid) to produce HiO3, which is associated with silver nitrate.

The effect can generate the Shen Sun Rising Grinding Lake. None of the other three will have this reaction.

1-butanol, 2-butanol, and tert-butanol are primary, secondary, and tertiary alcohols, respectively, so Lucas can be used.

Concentrated hydrochloric acid and anhydrous zinc chloride.

mixture) reagents to identify.

Tert-butanol reacts with it, and turbidity immediately appears.

2-Butanol becomes cloudy after a few minutes.

1-butanol needs to be heated by the laughing stool to appear cloudy.

As an important organic and fine chemical raw material, 1,4 butanediol is widely known for lead in medicine, chemical industry, textile, papermaking, automobile and daily chemical industry. So what are the main uses of 1,4 butanediol? The following butanediol manufacturer--- Shanxi Sanwei Group, will give you a detailed introduction to the main uses of 1,4 butanediol:

First of all, 1,4 butanediol is the basic raw material for the production of polybutylene terephthalate, that is, PBT engineering plastics and PBT fibers, which have the characteristics of heat aging resistance, solvent resistance, water stability, etc., and PBT plastics are known as one of the five most promising engineering plastics. Secondly, 1,4 butanediol is the main raw material for the production of tetramethyl hydrofuran, which is an important organic solvent polymerization can obtain polytetramethylene ether glycol (PTMEG for short), PTMEG is the basic raw material for the production of high elasticity spandex, that is, Lycra fiber, mainly used in the production of high-end sportswear, swimwear and other high-elasticity knitwear. Thirdly, a variety of downstream products of 1,4 butanediol are widely used in pesticides, pharmaceuticals and cosmetics.

Shanxi Sanwei Group butylene glycol manufacturers provide you with information on the use of butylene glycol and Mengchai classification, here there are a large number of butylene glycol products for you to choose from, and you can also view other information on the use and classification of butylene glycol for free.

Substitution reaction refers to a chemical reaction in which the original organic molecule replaces part of the original atom or molecule to form a new organic molecule. The substitution reactions of butylene glycol can be divided into three categories:

1.Addition substitution reaction: butylene glycol can react with chlorine to produce 2-chlorobutanol; Butylene glycol can react with vinyl chloride to produce 2-chloroethanol; Butylene glycol can react with chloromethane to produce 2,3-dichlorobutanol; Butylene glycol can react with chloropropene to produce 2,3-dichloropropanol.

2.Hydrolysis substitution reaction: butylene glycol can react with hydrogen peroxide to generate 2-hydroxybutanol; Butylene glycol can react with peroxide ethanol to produce 2-hydroxyethanol; Butylene glycol can react with propyl peroxide to form 2-hydroxypropanol.

3.Acidolysis substitution reaction: butylene glycol can react with sulfuric acid to generate 2-sulfate butanol; Butylene glycol can react with phosphoric acid to produce butanol 2-phosphate; Butylene glycol can react with nitric acid to produce 2-nitrate butanol.

Butylene glycol and ethylene glycol are a diol, which belongs to organic substances, and their molecular formulas are C2H6O2 and C2H4O2, respectively, and the main differences between them are as follows:

1. Butylene glycol has three hydrogen atoms, while ethylene glycol has only two hydrogen atoms.

2. The boiling point of butylene glycol is higher than that of ethylene glycol, which is 118, while the boiling point of ethylene glycol is only 90.

3. The density of butanediol is higher than that of ethylene glycol, for, and the density of ethylene glycol is only.

4. Butylene glycol is soluble in water, while ethylene glycol is soluble in water.

5. The refractive index of butylene glycol is higher than that of ethylene glycol, whereas the refractive index of ethylene glycol is only.

A mixed alcohol is a mixture of one or more alcohols with different physical and chemical properties. The difference between them and butylene glycol and ethylene glycol is that mixed alcohols are a mixture, whereas butylene glycol and ethylene glycol are single substances. In addition, the boiling point and density of mixed alcohols may be higher or lower than those of butylene glycol and ethylene glycol, while the refractive index may also vary.

Butylene glycol is an organic substance with the molecular formula C4H10O2 and a molecular weight of . The appearance is colorless or light yellow oily liquid. flammable, freezing point, refractive index.

Soluble in methanol, ethanol, acetone skin, slightly soluble in ether. It is hygroscopic, has a bitter smell, and has a slightly sweet taste in the mouth. It is used as a solvent and humidifier, and is also used in the preparation of plasticizers, drugs, polyester resins, polyurethane resins, etc.

Butylene glycol is an important organic chemical and fine chemical raw material, and is the basic raw material for the production of polybutylene terephthalate (PBT) engineering plastics and PBT fibers; PBT plastic is one of the five most promising engineering plastics.

Butylene glycol is the main raw material for the production of tetrahydrofuran, which is an important organic solvent of the segregating group, and the polytetramethylene glycol ether (PTMEG) obtained after polymerization is the basic raw material for the production of highly elastic spandex (Lycra fiber). Ammonia Macro Differential Fiber is mainly used for the production of high-end sportswear, swimwear and other high-elastic knitwear.

Butyrolactone, a downstream product of butylene glycol, is a raw material for the production of 2-pyrrolidone and N-methylpyrrolidone products, which derives a series of high value-added products such as vinylpyrrolidone and polyvinylpyrrolidone, which are widely used in pesticides, pharmaceuticals and cosmetics.