What chemical reagent does DMF stand for, and what is DMF in chemistry

Dimethylformamide.

The nature and use of DMF.

1. The nature of DMF.

DMF is a colorless and transparent liquid with a slight ammonia smell at room temperature and pressure, its molecular formula is C3H7NO, and the structural formula is:

ch3on —c—h

CH3 chemical name: N,N-dimethylformamide.

DMF is very hygroscopic and can be miscible with water, alcohols, ethers, esters, ketones, unsaturated hydrocarbons, aromatic hydrocarbons, etc., but not with saturated hydrocarbons such as gasoline, hexane, cyclohexane, etc.

DMF is basically a neutral solvent that remains stable at atmospheric distillation in the absence of acidic or alkaline substances, and begins to decompose into dimethylamine and formic acid at temperatures above 350. When DMF is exposed to strong sunlight, dimethylamine may also be formed, and if OH- ions are present in the aqueous solution of DMF, dimethylamine and formate ions will be produced.

DMF is non-corrosive to pure iron and austenitic stainless steels, but copper or aluminum containers should be avoided. Because they can discolor solvents, due to the strong hygroscopicity of DMF, if the container is not tightly sealed, DMF

Long-term moisture absorption will cause serious corrosion to the container at the phase interface, and when the formic acid content is high, it will also aggravate the corrosion of the container.

Dimethylformyl is a clear liquid that is miscible with water and most organic solvents. It is a common solvent for chemical reactions.

The DMF structure is shown in the figure below

DMF is N,N-dimethylformamide structure simplified Hcon(CH3)2;Amide is carbonyl + amino; Formamide is HCONH2; N,N-dimethyl indicates that two methyl groups are substituted on the n of the amino group; So it's HCON(CH3)2.

It's DMF. Dimethylformamide sharp potato excitation.

It is a clear liquid that is miscible with water and most organic solvents. It is a common solvent for chemical reactions. Pure dimethylformamide has a peculiar smell, while industrial-grade or spoiled dimethylformamide has a fishy smell because it contains impurities of dimethylamine.

The name** is due to the fact that it is a dimethyl substitute for formamide (the amide of formic acid), and both methyl groups are located on the n (nitrogen) atom.

Extended Hand Mega Information:

Uses of DMF:

1.Dimethylformamide is not only a widely used chemical raw material, but also an excellent solvent. It can be used for wet spinning and polyurethane of synthetic fibers such as polyacrylonitrile fiber.

the synthesis of ; used in the production of plastic films; It can also be used as a paint remover to remove paint;

It can also dissolve some pigments with low solubility, so that the pigment has the properties of a dye. Silver socks dimethylformamide can be used for aromatic hydrocarbon extraction, to separate **butadiene from C4 fraction, from C5 fraction**isoprene, and can also be used as a separation paraffin.

An effective reagent for non-hydrocarbon components.

2.Dimethylformamide is an excellent organic solvent used as polyurethane, polyacrylonitrile and polyvinyl chloride.

It is also used as an extractant, a raw material for pharmaceuticals and pesticides insecticides.

Dimethylformamide (DMF) is a transparent liquid that is miscible with water and most organic solvents. It is a common solvent for chemical reactions. Pure dimethylformamide is odorless, but industrial-grade or spoiled dimethylformamide has a fishy smell because it contains impurities of dimethylamine.

The name ** is due to the fact that it is a dimethyl substitute for formamide (amide of formic acid), and both methyl groups are located on the n (nitrogen) atom. Dimethylformamide is a polar (hydrophilic) aprotic solvent with a high boiling point, which can promote the SN2 reaction mechanism. Dimethylformamide is manufactured from formic acid and dimethylamine.

Dimethylformamide is unstable in the presence of strong bases such as sodium hydroxide or strong acids such as hydrochloric acid or sulfuric acid (especially at high temperatures) and hydrolyzed to formic acid and dimethylamine.

Molecular formula C3H7NO