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N-methyl-pyrrolidone

N-methyl-pyrrolidone
Product Detailed
purity 99.90% water 300ppm max color 10#

Equipped with the combination unit of 30,000T/A of N-Methyl-2-pyrrolidone, we now are the biggest manufacturer of NMP in China with most excellent quality and most leading high-tech .

N-Methyl-Pyrrolidone
Chemical name: N-Methyl-2-pyrrolidinone; 1-Methyl-2-pyrrolidone; N-Methyl-2-Pyrrolidone; NMP
CAS NO.:872-50-4
Characteristics:

Molecular formula:

C5H9NO

Molecular weight:

99.134

Structural formula:

 

Density(D420)g/ml:

1.028~1.033

Melting point:

-23.6°C

Boiling point:

202°C

Flash point:PH-value(100g/l)at 20°CRefractive index:(nD20)

95°C7.5-101.465-1.475

Ignition temperatureDynamic at 20°C

245°C1.796 mPas

 

Properties:

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

Specification:
N-methyl pyrrolidone Specifications (Operative Standard: Q/1400MCX002-2009) :

Item

Electronic grade

Industrial Grade

Test Method

Appearance

Colorless transparent liquid

Colorless transparent liquid

Eye-measurement

Purity %

≥99.90

≥99.50

Gas chromatography

Moisture %

≤0.020

≤0.050

Karl Fischer method

Tone APHA

≤10

≤15

Colorimetry

Density (D420) g/ml

1.027-1.035

1.027-1.035

Proportion

Refractive rate (nD20)

1.465-1.475

1.465-1.475

Spectrophotometry

PH Value (20°C,100g/L)

7.5-10

7.5-10

Potential method

N-methyl-pyrrolidone



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