日韩AV中文无码字幕色最新_精品国精品国产高清毛片_免费观看黄网站_凸凹人妻人人爽_最新aⅴ福利在线观看免费_亚州激情小说及图片_亚洲高清欧美三级_午夜黄色视频一区二区三区_开心极情网五月天婷婷丁香在线_97超碰在线免费观看



DMF (Dimethylformamide)


Dimethylformamide DMF
Chemical name: N,N-Dimethylformamide
Abbreviation: DMF
Molecular formula: C3H7NO  
Physical and chemical properties:
DMF is a colorless, light ammonia odor liquid, soluble in water and most organic solvents; melting point -61 °C, boiling point 152.8°C, flash point 57.7°C, refractive index 1.427-1.429, density (20°C) 0.9487g/ml.  
Quality Index:

Index name Top grade first grade
Appearance Colorless transparent liquid, no visible impurities
DMF content% ≥ 99.9 99.5
Methanol mg/kg ≤ 25 50
Chroma, (Pt-Co)No.: ≤ 5 10
Refractive index n25D 1.427-1.429 1.427-1.429
Moisture, % ≤ 0.050 0.10
Formic acid mg/kg ≤ 30 50
Dimethylamine mg/kg ≤ 15 30
PH value (20% solution) 6.5-8.0 6.5-9.0
Fe content mg/kg ≤ 0.05 0.10

Uses:
Dimethylformamide is an important organic chemical raw material and an excellent solvent. It is used as a solvent in artificial leather and chemical fiber textiles, as a synthetic high-efficiency and low-toxic pesticide in pesticides, and as a gas absorbent in petrochemical industry. , used to separate and purify gas, used in medicine to synthesize vitamin B6 and other drugs, and also used as stationary phase in gas phase analysis.
Packaging, storage and transportation:
DMF is packed in 190/200kg plastic drums or iron drums with inner plastic coating. Store tightly closed. During storage and transportation, it is necessary to prevent leakage, avoid rain, exposure, and strictly prohibit impact and friction. Keep away from fire and store in a cool and dry place.





  Previous product: Acetonitrile
  Next product: Acetylchloride