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NMP

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:
-23.6οC
Boiling point:
202οC
Flash point:
PH-value(100g/l)at 20οC
Refractive index:(nD20)
95οC
7.5-10
1.465-1.475
Ignition temperature
Dynamic at 20οC
245οC
1.796 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 (20οC,100g/L)
7.5-10
7.5-10
Potential method
Uses:
As a high-selective polar solvent and nitrogen heterocycle compound, NMP has such advantages as non-toxicity, high boiling point, low corrosion, high solubility, low viscosity, low volatility and good stability and high selectivity.
N-Methyl-pyrrolidone(electronic grade) is mainly used in such fields as:
(1) As solvent of poly(1,1-difluoro-Ethene); or electrode's accessory material of lithium ion battery.
(2)As remover liquid of photoresist; in the production of LCD materials;
(3)As solvent in pharmacy;
(4)Cleaning of precision instruments and circuit board.
1-Methyl-2-pyrrolidinone(industrial grade) is mainly used in such fields as:
(1)Extraction and recycling of organic raw materials in petrochemical industry
(2)Refining of lubricating oils
(3)As solvent of polymers and in polymerization.
(4) As solvent of resin processing in the manufacture of coatings, lacquer for floor, varnish, compound coating filming, enameled wire of IC, fiber fabrics and adhesives, etc.
(5) As industrial-use detergents in the cleaning of chemical equipments, stem, adhesive material and coatings etc.
(6) As solvent and dispersant in the production of pesticides and pigments.
Storage and transportation:
Store in cool and airy place; keep away from fire and heat; handle with care; avoid leakage.



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