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1-Methyl-2-pyrrolidinone(CAS#872-50-4)

Chemical Property:

Molecular Formula C5H9NO
Molar Mass 99.13
Density 1.028 g/mL at 25 °C (lit.)
Melting Point -24 °C (lit.)
Boling Point 202 °C (lit.)81-82 °C/10 mmHg (lit.)
Flash Point 187°F
Water Solubility >=10 g/100 mL at 20 ºC
Solubility ethanol: miscible0.1ML/mL, clear, colorless (10%, v/v)
Vapor Presure 0.29 mm Hg ( 20 °C)
Vapor Density 3.4 (vs air)
Appearance Liquid
Color ≤20(APHA)
Odor Slight amine odor
Maximum wavelength(λmax) ['283nm(MeOH)(lit.)']
Merck 14,6117
BRN 106420
pKa -0.41±0.20(Predicted)
PH 8.5-10.0 (100g/l, H2O, 20℃)
Storage Condition Store at +5°C to +30°C.
Stability Stable, but decomposes upon exposure to light. Combustible. Incompatible with strong oxidizing agents, strong acids, reducing agents, bases.
Sensitive Hygroscopic
Explosive Limit 1.3-9.5%(V)
Refractive Index n20/D 1.479
Physical and Chemical Properties Characteristics of colorless transparent oily liquid, slightly amine odor.
melting point -24.4 ℃
boiling point 203 ℃
relative density 1.0260
refractive index 1.486
flash point 95 ℃
, ether, Ester, ketone, halogenated hydrocarbon, aromatic hydrocarbon miscible.
Use Widely used in advanced lubricating oil refining, polymer synthesis, insulating materials, pesticides, pigments and cleaning agents

Product Detail

Product Tags

Risk Codes R45 – May cause cancer
R65 – Harmful: May cause lung damage if swallowed
R36/38 – Irritating to eyes and skin.
R36/37/38 – Irritating to eyes, respiratory system and skin.
R61 – May cause harm to the unborn child
R10 – Flammable
R46 – May cause heritable genetic damage
Safety Description S41 – In case of fire and / or explosion do not breathe fumes.
S45 – In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S53 – Avoid exposure – obtain special instructions before use.
S62 – If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label.
S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
WGK Germany 1
RTECS UY5790000
FLUKA BRAND F CODES 3-8-10
TSCA Y
HS Code 2933199090
Toxicity LD50 orally in Rabbit: 3598 mg/kg LD50 dermal Rabbit 8000 mg/kg

 

Introduction

N-methylpyrrolidone. The following is a detailed introduction to its properties, uses, preparation methods, and safety information:Quality:Appearance: N-methylpyrrolidone is a colorless to yellowish liquid.Taste: Has a special aroma.Density: The density at room temperature is 1.02 g/ml.Solubility: It is soluble in water and some organic solvents.Use:Chemical Reagents: N-methylpyrrolidone is commonly used as a solvent, extractant, and raw material in polymer synthesis.Electronic materials: N-methylpyrrolidone can be used to improve the conductivity of polymer materials, making them have better performance in the field of electronics.Preparation method:N-methylpyrrolidone is usually obtained by reacting pyrrolidone with methylation reagents such as iodine or methyl bromide. During the reaction, the methyl group reacts with the amino group of pyrrolidone to form N-methylpyrrolidone.Safety Information:N-methylpyrrolidone is a volatile liquid, care should be taken to avoid inhaling vapors.Wear appropriate personal protective equipment such as gloves and goggles when using it.It should be operated in a well-ventilated area and avoid contact with skin and eyes.When stored, N-methylpyrrolidone should be sealed in a dry, cool, dark place, away from fire and oxidizing agents.


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