Dimethylformamide is a Chemicals product. Key specs — Brand: Chih-Cheng; Origin: China (Mainland).
Product Description
CAS 68-12-2 ã€Physical and chemical properties】: 1, the name of the source is because it is formamide (amide acid) and dimethyl substitutions, and two are located in the methyl N (nitrogen) atoms. DMF is a high boiling point polar (hydrophilic) aprotic solvents, can promote the conduct of SN2 reaction mechanism.
2, DMF is the use of formic acid and dimethyl amine manufacturing. Dimethylformamide in the alkali such as sodium hydroxide or strong acids such as hydrochloric acid or sulfuric acid in the presence of unstable (especially at high temperature), and hydrolyzed to formic acid and dimethyl amine. 3, colorless, light taste of the liquid amine.
Molecular formula C3-H7-NO. Molecular weight of 73.10. The relative density of 0.9445 (25 ℃). Melting point -61 ℃. Boiling point 152.8 ℃. Flash point of 57.78 ℃. Vapor density of 2.51. Vapor pressure 0.49kpa (3.7mmHg25 ℃). Ignition point 445 ℃. Vapor and air mixture explosion limit of 2.2 ~ 15.2%.
With water and organic solvents are usually immiscible. In case of fire, heat can cause a fire explosion.
With concentrated sulfuric acid, fuming nitric acid reacts violently or even an explosion. ã€Effection and purpose】: 1, dimethylformamide (DMF) as an important chemical raw material and the excellent performance of the solvent, mainly used in polyurethane, acrylic, pharmaceuticals, pesticides, dyes, electronics and other industries.
2, in the polyurethane industry as a washing curing agent, mainly used in wet synthetic leather production; in the pharmaceutical industry as a synthesis of drug intermediates, widely used in the system to take doxycycline, cortisone, sulfa drugs production.
3 is mainly used for dry spinning acrylic fiber production, in the pesticide industry for the synthesis of high efficiency and low toxicity pesticides. 4, in the dye industry as a dye solvent; tin in the electronics industry as hardening components and circuit board cleaning.
5, other industries, including the carrier of dangerous gases, pharmaceutical crystallization using solvents and adhesives.
