N - Methyl pyrrolidone as NMP, molecular formula: C5H9NO, English: 1 - Methyl - 2 - pyrrolidinone, appearance is colorless to light yellow transparent liquid, slight ammonia odor, in any proportion of immiscible with water, but soluble in ether, acetone and ester, halogenated hydrocarbons, aromatic hydrocarbons and other organic solvents, and almost all completely mixed solvent, boiling point 204 ℃, flash point 91 ℃, hygroscopicity strong, stable chemical performance, no corrosion of carbon steel, aluminum, slightly corrosive to copper.
With low viscosity, stable chemical stability and thermal stability, high polarity and low volatility, it can be mixed with water and many organic solvents.
This product is a microdrug, and the limit concentration in the air is 100PPM.