N,N-Dimethylformamide CAS 68-12-2
Colorless transparent or light yellow liquid with fishy smell
1. It is an excellent organic solvent, used as a solvent for polyurethane, polyacrylonitrile, and polyvinyl chloride. It is also used as a raw material for extractants, medicines and pesticides.
2. Used as analytical reagent and solvent for vinyl resin and acetylene
3. Dimethylformamide is not only a very versatile chemical raw material, but also a very versatile excellent solvent. Dimethylformamide is a good solvent for a variety of polymers such as polyethylene, polyvinyl chloride, polyacrylonitrile, polyamide, etc., and can be used for wet spinning of synthetic fibers such as polyacrylonitrile fiber, and the synthesis of polyurethane; Used in plastic film making; it can also be used as paint remover to remove paint; it can also dissolve some low-solubility pigments, giving the pigments the characteristics of dyes. Dimethylformamide is used for aromatics extraction and separation and recovery of butadiene from C4 fraction and isoprene from C5 fraction. It can also be used as an effective reagent for separating non-hydrocarbon components from paraffin. . It has good selectivity to the solubility of isophthalic acid and terephthalic acid: the solubility of isophthalic acid in dimethylformamide is greater than that of terephthalic acid. Chemicalbook performs solvent extraction or Partial crystallization can separate the two. In the petrochemical industry, dimethylformamide can be used as a gas absorbent to separate and refine gas. In organic reactions, dimethylformamide is not only widely used as a solvent for the reaction, but also an important intermediate in organic synthesis. In the pesticide industry, it can be used to produce insecticide; in the pharmaceutical industry, it can be used to synthesize iodosamine, doxycycline, cortisone, vitamin B6, iodoside, ququjing, pyrantel, N-formyllysar Onumaric acid, methoxy mustard, chlorambucil, nitrosourea, furfurouracil, tranexamic acid, fenmethasone, megestrol, choviolet, chlorpheniramine, etc. Dimethylformamide has a catalytic effect in the reactions of hydrogenation, dehydrogenation, dehydration and dehydrohalogenation, which reduces the reaction temperature and improves the purity of the product.
4.Titration of non-aqueous solvents. Solvent for vinyl resin and acetylene. Photometric determination. Gas chromatographic stationary liquid (maximum use temperature 50℃, solvent is methanol), separate Chemicalbook to analyze C2-C5 hydrocarbons, and can separate normal and isobutene and cis and trans-2-butene. Analysis of pesticide residues. Organic Synthesis. Synthesis of peptides. For the photographic industry.
|Formic acid ppm||≤25||2|
|PH:25°C 20%Aqueous solution||7.0-7.5||7.0|
|Electric Conductivity: 25°C 20%Aqueous solution, us||≤10||0.14|
(dimethyl Acetamide) ppm
190KG/DRUM, 80DRUMS/20FCL, 15.2MT/20'FCL, 22MT/ISO TANK
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