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  1. Fax: +86-731-84421482
  2. E-mail: sinogreat@sinogreat.cn
  3. Tel: +86-731-84427351
  4. Add: RM. 2010, Tian xin cheng (South) 154 Jianxiang South Road, Changsha, Hunan, 410005, China.

N-Methyl-Pyrrolidone (NMP)

Product name: N-Methyl-Pyrrolidone

Chemical name: N-Methyl-2-pyrrolidinone; 1-Methyl-2-pyrrolidone; N-Methyl-2-Pyrrolidone; NMP

CAS NO.: 872-50-4

 

Molecular formula:  C5H9NO
Molecular weight: 99.134
Melting point: -23.60

Boiling Point: 202

Flash point (closed cup)/20
: 890
Viscosity (200C, mPas):  1.796
Ignition temperature: 245

 

Properties: Colourless transparent liquid, it has strong water absorption. It can almost dissolve in all the solvents

Specification and indicators

Items

Micro-electronic grade

Electronic grade

Pharmaceutical grade

Industrial grade

Purity (GC, wt%)

≥99.90

≥99.90

≥99.80

≥99.50

Water (K.F., wt%)

≤0.01

≤0.02

≤0.03

≤0.05

Chroma (Hazen, APHA)

≤5

≤10

≤20

≤25

Density (@200Cjg/ml)

1.026~ 1.036

1.026 ~ 1.036

1.026 ~ 1.036

1.026 ~ 1.036

Refractive index (@20)

1.46~1.475

1.465 ~1.475

1.465 ~1.475

1.465 ~1.475

PH value (20) 50%

6.5 ~ 9.0

6.5 ~ 9.0

6.5 ~ 9.0

6.5 ~ 9.0

Total amine (50%, ppm)

≤10

≤20

≤30

≤50

Heavy metal

≤10

≤20

≤50

≤100

 

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 lithium batteries, aramid fiber,   PPS, ultrafiltra-tion film and other industries.
  3. Pharmaceutical grade: It is applicable to medical, pharmaceutical,   veterinaryt solvents, intermediates 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.
  Packaging:
  It is packaged with galvanized buckets (net weight: 200KG), paint coated   buckets (net weight: 200KG), HDPE buckets (net weight:200KG), IBC buckets   (net weight: 1,OOOKG), GB standard stainless steel ISOTANK (NW: 20MT) and   stainless land tankers (30MT).

Storage and transportation: Store in   cool and airy place; keep away from fire and heat; handle with care; avoid   leakage.


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CONTACT US

  • Fax: +86-731-84421482
  • E-mail: sinogreat@sinogreat.cn
  • Tel: +86-731-84427351
  • Add: RM. 2010, Tian xin cheng (South) 154 Jianxiang South Road, Changsha, Hunan, 410005, China.
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