少妇人妻的诱感_亚洲一级二级高清无码_超级碰免费观看视频_丁香五月国产精品

α-pyrrolidone (α-P)


1. Chemical name: 2-Pyrrolidone;Butyrolactam;Alpha-P; A close relative-pyrrolidone;α-PVR; 2-P
2, CAS: 616-45-5
3. Molecular formula: C4H7NO
4. Molecular weight: 85.10
5. Structural formula:
6. Melting point: 24.6°C
7. Flash point: 129°C
8. Boiling point: 245°C
 
Colorless to light yellow liquid or crystals. Can miscible with water; alcohol; ether; chloroform; benzene;Ethyl acetate ; carbon disulfide and insoluble in petroleum ether. High boiling point polar solvent, is also intermediate in organic synthesis. Mainly used for synthetic resins, pesticides, polyols, inks, solvents of sulfonation, as well as raw materials for the production of polyethylene pyrrolidone, polyvinyl-4 and piracetam, etc.
 
Item First grade Top grade
Purity, %       ≥ 99 99.5
Moisture, %     ≤ 0.1
Chroma (Pt-Co)#≤ 20 10
Density(20℃), g/cm3 1.107~1.115

Packaging:200KG in Galvanized drum




  Previous product: N-methyl pyrrolidone(NMP)
  Next product: PVP-K homopolymerization