Keywords

• Reliable quality of N-Methyl-2-pyrrolidone(NMP)
• global trader N-Methyl-2-pyrrolidone(NMP)
• N-Methyl-2-pyrrolidone(NMP) on hot selling

Quick Details

• ProName: Reliable quality of global trader N-Me...
• CasNo: 872-50-4
• Molecular Formula: C5H9NO
• Appearance: Colorless transparent liquid
• Application: It is an important raw material and in...
• DeliveryTime: prompt
• PackAge: according to the clients requirement
• Port: Shanghai
• ProductionCapacity: 1-100 Metric Ton/Month
• Purity: 99.5%
• Storage: Store in dry, dark and ventilated plac...
• Transportation: by sea or by air
• LimitNum: 1 Kilogram
• Grade: Industrial Grade，Pharma Grade

Superiority

Reliable quality of global trader N-Methyl-2-pyrrolidone(NMP) on hot selling

Production method
It is obtained by the reaction of γ-butane ester with methylamine. The first step in the reaction is to γ-butane ester and methylbutylamine to produce 4-hydroxy-N-methylbutylamide, and the second step is to dehydrate to produce N-methylatonin. The two-step reaction can be carried out continuously in a tube reactor, with a molar ratio of γ-butane to methylamine of 1:1.15, a pressure of about 6MPa and a temperature of 250 degrees C. After the reaction is completed, the finished product is distilled by concentration and decompression. The yield is 90%. If the use of kettle-type anti-inverter production, the amount of methamine is 1.5-2.5 times the theoretical amount, to take laboratory preparation as an example. In a 500 ml heat press, add 2 mol-butane ester and 4 moles of liquid methamine, closed heating, and keep warm at 280 degrees C 4h. After cooling, release excess methylamine, distillation, collection of 201-202 degrees C fractions, about 180g of the product, the yield of about 90%. Raw material consumption (kg/g) γ-butane 980 methamine (40%)860

Details

RFQ:

Q1: Have your product quality been approved by third party?

Yes,all products are strictly tested by our QC,and approved by third party like SGS.

So we can gurantee the good quality.

Q2: Do you accept sample order?

Yes,we could suppliy different scale of samples for your evaluation quality.

Q3: Is free samples avalibale?

Yes,free sample could be provided,but shipping cost will be paid by customers.

Q4: How long will you deliver the goods on board?

7-10 days after order confirmation.