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1,2-Dichloroethane CAS 107-06-2
1,2-Dichloroethane is a colorless, transparent oily liquid with a chloroform-like odor and a sweet taste. Soluble in water about 120 times, miscible with ethanol, chloroform and ether. Can dissolve oil and grease, grease, paraffin.
Mainly used in the manufacture of vinyl chloride, oxalic acid and ethylenediamine, and can also be used as solvents, grain fumigants, detergents, extraction agents, metal degreasing agents, etc.
production method ：
1. Direct synthesis method of ethylene and chlorine: chlorine ethylene and chlorine in 1,2-dichloroethane medium to generate crude dichloroethane and a small amount of polychlorides, add alkali and flash evaporate to remove acidic substances and some high boiling substances , washed with water until neutral, azeotropic dehydration, and distillation to obtain the finished product. 2. Ethylene oxychlorination method: Ethylene is directly chlorinated with chlorine to form dichloroethane. The hydrogen chloride recovered during the cracking of dichloroethane to produce vinyl chloride, the oxygen-containing gas Chemicalbook (air) and ethylene preheated to 150-200°C are passed through a copper chloride catalyst loaded on alumina at a pressure of 0.0683-0.1033MPa , react at a temperature of 200-250°C, and the crude product is cooled (condensing most of the trichloroacetaldehyde and part of the water), pressurized, and refined to obtain the dichloroethane product. 3. Method of direct chlorination of ethylene from petroleum cracked gas or coke oven. In addition, 1,2-dichloroethane is also a by-product in the production of chloroethanol and ethylene oxide.
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Sodium chloride CAS 7647-14-5
Sodium chloride is the main component of table salt and rock salt. It is an ionic compound and is a colorless and transparent cubic crystal. Sodium oxide exists in large quantities in seawater and natural salt lakes. It can be used to produce chlorine, hydrogen, hydrochloric acid, sodium hydroxide, chlorate, hypochlorite, bleaching powder and metallic sodium. It is an important chemical raw material; Chemicalbook can be used in food Seasoning and marinating fish, meat and vegetables, as well as for salting out soap and tanning leather, etc.; highly refined sodium chloride can be used to make physiological saline for clinical treatment and physiological experiments, such as sodium loss, water loss, blood loss, etc. Sodium chloride can be produced by concentrating crystalline seawater or natural salt lake or salt well water.
Sodium chloride is an important chemical raw material for the preparation of chlorine gas, metallic sodium, caustic soda, soda ash and other substances, and is widely used in dyes, ceramics, metallurgy, leather, soap, refrigeration, etc. In analytical chemistry, sodium chloride is a reagent for the determination of fluorine and silicate, and a benchmark reagent for calibrating silver nitrate.
Sodium chloride is an important matrix for maintaining extracellular fluid volume. It also has a certain regulatory effect on the acid-base balance of body fluids. It is also one of the important factors in maintaining neuromuscular stress. Mainly used to prevent and treat hyponatremic syndrome, sodium deficiency dehydration (such as burns, diarrhea, shock, etc.), heat stroke, etc.; externally used for eyewash, nose, wounds, etc.; intravenous injection of 10% hypertonic sodium chloride solution can promote gastrointestinal Peristalsis, improve digestive function.
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Morpholine CAS 110-91-8
Morpholine, also known as 1,4-oxazacyclohexane and diethyleneimine oxide, is a colorless alkaline oily liquid with an ammonia odor and hygroscopicity. It can evaporate with water vapor and is miscible with water. Soluble in acetone, benzene, ether, pentane, methanol, ethanol, carbon tetrachloride, propylene glycol and other organic solvents。
Morpholine contains secondary amine groups and has all the typical reaction characteristics of secondary amine groups. It reacts with inorganic acids to form salts, reacts with organic acids to form salts or amides, and can perform alkylation reactions. It can also react with ethylene oxide, ketones or perform Willgerodt reactions.
Due to the unique chemical properties of morpholine, it has become one of the fine petrochemical products with important commercial uses. It can be used to prepare rubber vulcanization accelerators, rust inhibitors, anti-corrosion agents, and cleaning agents such as NOBS, DTOS, and MDS. , descaling agents, analgesics, local anesthetics, sedatives, respiratory system Chemicalbook and vascular stimulants, surfactants, optical bleaches, fruit preservatives, textile printing and dyeing auxiliaries, etc., in rubber, medicine, pesticides, dyes, coatings, etc. The industry has a wide range of uses. In medicine, it is used to produce many important drugs such as morpholino, virospirin, ibuprofen, aphrodisiac, naproxen, diclofenac, sodium phenylacetate, etc.
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2-Ethylhexylamine CAS: 104-75-6
2-Ethylhexylamine CAS: 104-75-6
It is a colorless and transparent liquid, slightly soluble in water, soluble in ethanol and acetone. Flammable. Incompatible with strong oxidizing agents. It is used as an intermediate for pesticides, dyes, pigments, surfactants, and insecticides. It can also be used to produce stabilizers, preservatives, emulsifiers, etc. The preparation method is obtained by reacting 2-ethylhexanol with ammonia. In the same set of batch kettle equipment, 2-ethylhexylamine, di(2-ethylhexyl)amine, and tris(2-ethylhexyl)amine can be produced in rotation。 -
p-Toluenesulfonamide CAS 70-55-3
p-Toluenesulfonamide, also known as 4-toluenesulfonamide, p-sulfonamide, toluene-4-sulfonamide, toluenesulfonamide, p-sulfamoyltoluene, is a white flake or leaf Chemicalbook crystal, used to synthesize chloramine-T and Chloramphenicol, fluorescent dyes, manufacturing plasticizers, synthetic resins, coatings, disinfectants and wood processing brighteners, etc.
p-Toluenesulfonamide is an excellent solid plasticizer for thermosetting plastics, suitable for phenolic resin, melamine resin, urea-formaldehyde resin, polyamide and other resins. A small amount of blending can improve processability, make curing even, and give the product a good gloss. p-Toluenesulfonamide does not have the softening effect of liquid plasticizers, is incompatible with polyvinyl chloride and vinyl chloride copolymers, and is partially compatible with cellulose acetate, cellulose acetate butyrate and cellulose nitrate.
The production method first adds part of the HN3 water into the reaction pot, adds p-toluenesulfonyl chloride while stirring, and the temperature naturally rises to above 50°C. After the temperature drops, the remaining ammonia water is added. React at 85~9Chemicalbook0℃ for 0.5h. The reaction ends when the pH value reaches 8 to 9. Cool to 20°C, filter, and wash the filter cake with water to obtain crude product. The product is then decolorized by activated carbon, dissolved in alkali, separated by acid, filtered and dried to obtain the product.
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Tosyl chloride CAS 98-59-9
Tosyl chloride CAS 98-59-9
Tosyl chloride(TsCl), as a fine chemical product, is widely used in the dye, pharmaceutical, and pesticide industries. In the dye industry, it is mainly used to manufacture intermediates for disperse, ice dye, and acid dyes; in the pharmaceutical industry, Chemicalbook is mainly used to produce sulfonamides, mesulfonate, etc.; in the pesticide industry, it is mainly used in the production of mesotrione, sulfotrione , fine metalaxyl, etc. With the continuous development of the dye, pharmaceutical and pesticide industries, the international demand for this product is growing day by day.
There are two main traditional processes for TsCl: 1. It is produced by direct acid chlorination of toluene and excess chlorosulfonic acid at low temperature. This method produces o-toluenesulfonyl chloride with high content, and p-toluenesulfonyl chloride is its by-product, and both It is difficult to separate and consumes a lot of energy; 2. Toluene and chlorosulfonic acid are directly chlorinated with excess chlorosulfonic acid in the presence of certain salts and at a certain temperature. Although this method has a higher product ratio of toluenesulfonyl chloride, the purification ratio The method is easy and consumes low energy. However, due to the relatively high reaction temperature, the separated sulfonated oil contains high sulfones and has low utilization value. The actual total yield is only about 70% in Chemicalbook. In addition, both methods have high consumption of raw material chlorosulfonic acid and the waste sulfuric acid produced is too dilute, which is not conducive to industrial utilization and treatment. There are also reports to improve the method. First, the p-toluenesulfonyl chloride in the reaction mixture is fully crystallized under certain conditions and the crystal particles are enlarged. The method of direct filtration without hydrolysis is used to remove the p-toluenesulfonyl chloride from the mixture. However, there are currently certain difficulties in selecting industrial equipment and the investment is large. Improved process: Suitable catalysts and other optimal process conditions were selected.
Tosyl chloride (TsCl) is a white flaky crystal with a melting point of 69-71°C. It is an important organic synthesis drug intermediate and is mainly used in the synthesis of chloramphenicol, chloramphenicol-T, thiamphenicol and other drugs. .
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Benzyl chloride CAS: 100-44-7
Benzyl chloride CAS: 100-44-7
Benzyl chloride, also known as benzyl chloride and toluene chloride, is a colorless liquid with a strong pungent odor. It is miscible with organic solvents such as chloroform, ethanol, and ether. It is insoluble in water but can evaporate with water vapor. Its steam has certain irritation to the mucous membrane of the eyes and is a strong tear gas. At the same time, benzyl chloride is also an intermediate in organic synthesis and is widely used in the synthesis of dyes, pesticides, synthetic fragrances, detergents, plasticizers, and medicines.
Applications
Benzyl chloride has a wide range of uses in industry. It is mainly used in the fields of pesticides, medicines, spices, dye auxiliaries, and synthetic auxiliaries. It is used to develop and produce benzaldehyde, butyl benzyl phthalate, aniline, phoxim, and benzyl chloride. Penicillin, benzyl alcohol, phenylacetonitrile, phenylacetic acid and other products. Benzyl chloride belongs to the benzyl halide class of irritating compounds. In terms of pesticides, it can not only directly synthesize the organophosphorus fungicides Daifengjing and Isidifangjing Chemicalbook, but also can be used as an important raw material for many other intermediates, such as the synthesis of phenylacetonitrile, Benzoyl chloride, m-phenoxybenzaldehyde, etc. In addition, benzyl chloride is widely used in medicine, spices, dye auxiliaries, synthetic resins, etc. It is an important intermediate in chemical and pharmaceutical production. Then the waste liquid or waste produced by enterprises during the production process inevitably contains a large amount of benzyl chloride intermediates.
Chemical Properties:
Colorless and transparent liquid with a strong pungent odor. Tear-jerking. Soluble in organic solvents such as ether, alcohol, chloroform, etc., insoluble in water, but can evaporate with water vapor.
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N-Isopropylhydroxylamine CAS: 5080-22-8
N-Isopropylhydroxylamine is a colorless liquid with a strong ammonia odor.
- It is soluble in water and most organic solvents, but insoluble in non-polar solvents.
- It is a nucleophile that has addition reactions to compounds such as esters, aldehydes, and ketones.
use:
- N-Isopropylhydroxylamine is mainly used in organic synthesis reactions, especially as an amination reagent.
- It can be used to synthesize amination products of aldehydes, ketones, and esters, and participate in some cyclization reactions.
- It can also be used as a reducing reagent to perform reduction reactions in organic synthesis.
Preparation method:
- The common preparation method of N-isopropylhydroxylamine is to perform an amidation reaction on isopropyl alcohol to obtain N-isopropylisopropylamide, and then use ammonia gas to act on it to generate N-isopropylhydroxylamine.
Security Information:
- N-Isopropylhydroxylamine is a corrosive substance that can cause irritation and burns on contact with skin and eyes.
- Wear protective gloves, goggles and other personal protective equipment when using.
- Use in a well-ventilated area and avoid inhaling its vapors.
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2,6-Dimethylaniline CAS 87-62-7
2,6-Dimethylaniline is a slightly yellow liquid with a relative density of 0.973. It is insoluble in water, soluble in alcohol, ether, and soluble in hydrochloric acid.
The synthesis routes of 2,6-dimethylaniline mainly include 2,6-dimethylphenol aminolysis method, o-methylaniline alkylation method, aniline methylation method, m-xylene disulfonation nitration method and m-xylene disulfonation method. Toluene nitration reduction method, etc.
This product is an important intermediate for the production of pesticides and medicines, and can also be used as a raw material for chemical products such as dyes. Combustible by open flame; reacts with oxidants; decomposes toxic nitrogen oxide smoke with high heat.
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2,4-Dimethyl aniline CAS 95-68-1
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2,4-Dimethyl aniline CAS 95-68-1
It is a colorless oily liquid. Color deepens in light and air. Slightly soluble in water, soluble in ethanol, ether, benzene and acid solutions.
2,4-Dimethylaniline is obtained by nitration of m-xylene to obtain 2,4-dimethylnitrobenzene and 2,6-dimethylnitrobenzene. After distillation, 2,4-dimethylnitrobenzene is obtained. The product is obtained by catalytic hydrogenation reduction of benzene. Used as intermediates for pesticides, pharmaceuticals and dyes。Combustible in open flames; works with oxidants; decomposes toxic nitrogen oxide smoke with high heat. During storage and transportation, the warehouse should be ventilated and dry at low temperature; store it separately from acids, oxidants, and food additives.
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1-(Dimethylamino)tetradecane CAS 112-75-4
1-(Dimethylamino)tetradecane CAS 112-75-4
Appearance is transparent liquid。 insoluble in water and less dense than water. Hence floats on water. Contact may irritate skin, eyes and mucous membranes. May be toxic by ingestion, inhalation or skin absorption.
Used to make other chemicals.And mainly used in preservatives, fuel additives, bactericides, rare metal extractants, pigment dispersants, mineral flotation agents, cosmetic raw materials, etc.
Storage conditions: Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
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Triethylamine CAS: 121-44-8
Triethylamine (molecular formula: C6H15N), also known as N,N-diethylethylamine, is the simplest homo-trisubstituted tertiary amine and has the typical properties of tertiary amines, including salt formation, oxidation, and triethyl Chemicalbook amine. Test (Hisbergreaction) no response. It appears as a colorless to light yellow transparent liquid with a strong ammonia odor and smokes slightly in the air. Slightly soluble in water, soluble in ethanol and ether. Aqueous solution is alkaline. Toxic and highly irritating.
It can be obtained by reacting ethanol and ammonia in the presence of hydrogen in a reactor equipped with a copper-nickel-clay catalyst under heating conditions (190±2°C and 165±2°C). The reaction will also produce monoethylamine and diethylamine. After condensation, the product is sprayed with ethanol and absorbed to obtain crude triethylamine. Finally, after separation, dehydration and fractionation, pure triethylamine is obtained.
Triethylamine can be used as a solvent and raw material in the organic synthesis industry, and is also used in the manufacture of medicines, pesticides, polymerization inhibitors, high-energy fuels, rubberizers, etc.
