对白精彩刺激在线播放_久久香蕉国产线看观看亚洲片_谈谈特级毛片黄色视频_成人免费xxx在线观看_午夜无码不卡二区_精品亚洲国产激情_国产短裙高跟肉丝在线观看_91精品欧美好爽无遮挡_亚洲精品动漫在线_揉捏爆乳巨胸视频



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