PRODUCTS > N-methyl pyrrolidone (NMP)
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N-methyl pyrrolidone (NMP)

Chemical name: N-methy-lpyrrolidone;1- methyl-2-pyrrolidone;
N-methyl-2-pyrrolidone
CAS NO.: 872-50-4
Molecular formula: C5H9NO
Character: colorless transparent liquid; be hygroscopic and miscible with water in any ratio, and also miscible with alcohol, ether, acetone, aromatic hydrocarbons and other solvents.

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Application:
  1. Micro-electronic grade: It is applicable to LCD, semiconductor, circuit boards, carbon nanotubes and other high-end microelectronic industry.
 2.Electronic grade: It is applicable to such industries as aramid fiber, PPS, ultrafiltration membrane, OLED plate photoetching, glue etching and other industries.
 3.Battery grade:It is applicable to lithium batteries and other industries.
 4.Industrial grade: It is applicable to the acetylene concentration, butadiene extraction,electrical insulating materials, high-grade paints, pesticide adjuvants, inks, paints, indus-trial cleaning agent and other industries.
 

Specification and indicators

Items Micro-electronic grade Electronic grade Battery
grade		Industrial grade
Purity (GC, wt%)≥99.95≥99.9≥99.9≥99.8
Water (K.F.,ppm）≤100≤200≤200≤500
Chroma (Hazen, APHA）≤10≤10≤10≤30
10% solution pH value6-96-96-96.5-10
free amine(ppm)//≤20/
total amine (based on MMA, ppm)≤15≤20≤30/
Cl-，PO43-,
  SO42-(ppm)		≤0.02≤0.02//
NO3- (ppm）≤0.01≤0.01//
Metal ion(ppb)    K、Na、Ca、Zn、Mg、Cd、Pb、Cr、Hg、As、Ni、Sn、B、Si、Mn、Fe、Cu、Ag、Ti、Al、Li、Co、Au≤10≤20//


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