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N-Methyl-2-Pyrrolidone NMP

CAS No.: 872-50-4

Other Name: NMP Solvent; N-Methylpyrrolidone; 1-methyl-2-pyrrolidinone

Molecular Formula:C₅H₉NO

Molecular Weight: 99.131

Grades: Electronic Grade , Medical Grade , Industrial Grade

Capacity: 40,000MT

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Physical Properties

NMP is colorless transparent oily liquid, slightly amine odor, can be dissolved in most organic and inorganic compounds, polar gases, natural and synthetic polymer compounds . Acute toxicity: mice oral channel LC50:5130mg/kg; Rat oral meridian LD50:3914mg/kg

NMP is stable in a neutral solution. After 8 hours in 4% sodium hydroxide solution,there are 50%~70% of NMP that will occurs hydrolysis .

Uses in Different Fields

NMP can be used as solvent for polymer reaction;
Compared with phenol and furfural, n-methylpiriolanone has the characteristics of strong polarity, non-toxic and non-corrosive, and easy recovery. It has been used to remove aromatic substances in lubricating oil instead of phenol and aldehyde. This process is safe and easy to operate with low solvent loss;
NMP can be used to recover acetylene, butadiene and vallediene from naphtha cracking gas.
NMP can be used to clean blockades in chemical equipment of tower type. High concentration of N-methylpyrsquidone can also be used as ultrasonic cleaning agent for fine machinery and optical instruments;
NMP is the main raw material for the production of artificial plasma and vitamin B1.

Specification
Package
Storage Condition :

QUALITY STANDARD
ITEMS		INDEXES
		REAGENT GRADE	ELECTRONIC GRADE	INDUSTRIAL GRADE
PURITY/（wt%） ≥		99.9	99.9	99.8
MOISTURE/（wt%） ≤		0.01	0.02	0.05
CHROMA（Hazen）≤		10	15	25
DENSITY（D420）		1.029～1.033		1.029～1.035
REFRACTIVE INDEX（ND20）		1.467～1.471
PH VALUE（10%，v/v）		7～9		7～10
FREE AMINE (AS MONOETHYLAMINE（wt%）≤		0.0015	0.003	0.01
METHYL ISOMER/（wt%）≤		0.03	0.05	——
ION CONTENT（PPB）	PHOSPHATE(AsPO4）≤	100	1000	——
	SULPHATE（As SO4)≤	100	1000	——
	NITRATE（As NO3）≤	100	1000	——
	(Cl）≤	10	100	——
	(Cd) ≤	10	100	——
	(Pb) ≤	10	100	——
	(Cr) ≤	10	100	——
	(Hg) ≤	10	100	——
	(As) ≤	10	100	——
	(Ni) ≤	10	100	——
	(Sn) ≤	10	100	——
	(B) ≤	10	100	——
	(Si) ≤	10	100	——
	(Mn) ≤	10	100	——
	(Fe) ≤	10	100	——
	(Al) ≤	10	100	——
	(Cu) ≤	10	100	——
	(Ag) ≤	10	100	——
	(Ti) ≤	10	100	——
	(Ca) ≤	10	100	——
	(Mg) ≤	10	100	——
	(Na) ≤	10	100	——
	(K) ≤	10	100	——
	(Li) ≤	10	100	——
	(Co) ≤	10	100	——
	(Au) ≤	10	100	——