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weituo chemical

N-Methyl-Pyrrolidone、1-Methyl-2-Pyrrolidone、N-Methyl-2-Pyrrolidone

Chemical Name：N-Methyl-Pyrrolidone、1-Methyl-2-Pyrrolidone、N-Methyl-2-Pyrrolidone

CAS NO：872-50-4

Molecular Formula：C5H9NO

Molecular Weight：99.134

Refractive Index（nD20）：1.465-1.475

Melting Point：-23.6℃

Flash point (closed cup)/20℃：89℃

Viscosity (20℃，mPas)：1.796

Boiling Point：202℃

Refractive Index（nD20）：1.465-1.475

 

Items

Micro-electronic Grade

Electronic Grade

Pharmaceutical Grade

Industrial Grade

Purity(wt%,GC)

≥99.90

≥99.85

≥99.80

≥99.50

Moisture(wt%,K.F.)

≤0.01

≤0.03

≤0.05

≤0.05

Density(g/cm³,20℃)

1.026-1.036

1.026-1.036

1.026-1.036

1.026-1.036

Color(APHA,Hazen)

≤10

≤10

≤20

≤30