N-methyl-pyrrolidone (NMP)Chemical name
: N-methy-lpyrrolidone;1- methyl-2-pyrrolidone;
Molecular formula: C5
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.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
γ-butyrolactone (GBL)Chemical name
|Items||Micro-electronic grade||Electronic grade||Battery|
|Purity (GC, wt%)||≥99.95||≥99.9||≥99.9||≥99.8|
|Chroma (Hazen, APHA）||≤10||≤10||≤10||≤30|
|10% solution pH value||6-9||6-9||6-9||6.5-10|
|total amine (based on MMA, ppm)||≤15||≤20||≤30||/|
|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||/||/|
: 1,4-butyrolactone; γ-butyrolactone CAS NO.：
Character: colorless and transparent oily liquid with odor similar to acetone; be miscible with water, acetone, carbon tetrachloride and ethanol, and can be decomposed in hot lye with aromatic odor.Application:
r-butyrolactone is an important organic chemical raw material, which is widely used in the pharmaceutical, pesticide, petrochemical and
1. It can be used to synthesize pyrrolidone products;
2. It can be used as a pharmaceutical intermediate, such as Cyclopropylamine and vitamin;
3. It can be used as a pesticide intermediate, such as herbicide and plant growth regulator;
4. It can be used for alkenes, alkynes extraction agent, absorbent and dispersing agent;
5. It can be used to synthesize resin as an antioxidant, plasticizer, dispersing agent, fixing agent and solvent;
6. It can be used to synthesize fiber spinning solvent, coagulant, dyeing assistant and antistatic agent;
7. It can be used as a raw material of color film former, electrolyte, capacitor and ink lubricant.Specification and indicators
α-pyrrolidinone (α-p)Chemical name
|ltems||lndustrial grade||Electronic grade||Micro-electronic grade|
| acid number（wt%）||≤0.05||≤0.03||≤0.03|
|Refractive index (@20℃)||1.435～1.438||1.435～1.438||1.435～1.438|
: α-pyrrolidone, 2 - pyrrolidone, 4-- butyrolactam
CAS No: 616-45-5
Character: colorless or slightly yellow transparent liquid or crystal with slight ammonia smell; be miscible with water, alcohol, ether, chloroform, benzene, ethyl acetate, carbon disulfide and most organic solvents in any ratio; and be insoluble in petroleum ether.Application:
α-pyrrolidone is an important chemical raw material and high-polarity organic solvent. It is widely used in the pharmaceutical, textile, cosmetic, solvent, electronic cleaning and other industries.
1. As an organic synthetic raw material and intermediate, it is mainly used polyvinylpyrrolidone, piracetam, γ-aminobutyric acid, nylon -4, polyamide fibers etc.
2. As a solvent, it is mainly used in synthetic resins, pesticides, plasticizers, coloring agent, floor polishes, polyhydric alcohols, printing inks, coatings, iodine, electronics cleaning etc.Specification and indicators
|ltems||Excellent grade||First grade|
|Water content (K.F.,wt%)||≤0.1%||≤0.1%|
|Refractive index (@20℃)||1.482～1.486||1.482～1.486|
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