N-Methyl-2-pyrrolidone
Hangzhou Weitong Nanomaterials Co., Ltd. is an innovative enterprise focusing on the field of nanomaterials, founded in 2015. We mainly produce and sell N-vinylpyrrolidone and downstream PVP series products. Hangzhou Weitong Nano Materials Co., Ltd. is committed to providing customers with the most suitable products in line with the enterprise spirit of "integrity, innovation, dedication and cooperation".
Advantages to choose us:
1.Free sample service: We can provide you with free samples if you want.
2.Direct factory,competitive price: We are the manufacturer, and we produce these products by ourselves, so there is no extra payment link in the middle. We can give you the most competitive price.
3.Quality control: We have the ISO9001 certificate, and we strictly follow GMP production standards for production.
4.Good after-sale service: We have a sound after-sales service system, so whatever you have any doubt about the product ,you can strictly contact us , we will give you a satisfied plan.
5. What can you get from us?
You can get excellent products (strict quality control ) ,factory direct sale (favorable and competitive price),great service( after-sales services, fast delivery)and professional business consultation.
Product Introduction
Name: N-methylpyrrolidone; N-methyl pyrrolidone; NMP; 1-methyl-2-pyrrolidone; N-Methyl-2-pyrrolidone;
CAS No:872-50-4. Molecular formula:C5H9NO.
Density: 1.028g/cm3, melting point: -24°C, flash point: 91°C, refractive index n20/D: 1.47.
Colorless transparent oily liquid with a slight amine odor. It is miscible with water, alcohols, ethers, esters, ketones, halogenated hydrocarbons, aromatics and castor oil. Low volatility, good thermal and chemical stability, and volatilization with water vapor. It is hygroscopic. Sensitivity to light. It is a polar aproton transport solvent with the advantages of low toxicity, high boiling point, outstanding solubility, strong selectivity and good stability.
1. It is widely used in aromatic hydrocarbon extraction, purification of acetylene, olefins and diolefins, and is also used in the solvent of polymers and the medium of polymerization reaction, such as engineering plastics and aramid fibers. In addition, it can also be used in pesticides, pharmaceuticals and detergents.
2.The main uses of NMP in the petrochemical industry are as follows:
- Extraction and recovery of basic organic raw materials. It can be used as a solvent for the recovery of acetylene from natural gas or light naphtha pyrolysis gas with a purity of 99.7% for the recovery of concentrated acetylene, as an extractant for the separation and recovery of high-purity butadiene from cracked C4 hydrocarbons with a recovery rate of 97% and a purity of 99.7% for the recovery of butadiene, as an extractant for the recovery of high-purity isoprene from cracked C5 hydrocarbons with a recovery purity of 99% for isoprene, and as an aromatic extractant extractant due to its high solubility and low vapor pressure for aromatic hydrocarbons, the extractant loss rate in the process is low.
- Lubricating oil refining. It is used to extract aromatic hydrocarbons in lubricating oil to achieve the purpose of refining lubricating oil, and
- used as a solvent for polymer and polymerization reaction. For example, the production of polyphenylene sulfide and aramid, polyimide, polyamide, polyurethane and other polymers polymer solvents;
- as a solvent for resin processing can be used to manufacture coatings, floor paints, varnishes, composite coatings, integrated circuit enameled wire insulation materials, fiber fabrics and adhesives and other products;
- industrial detergents, cleaning chemical equipment, blockages, adherents and coating layers, etc.;
- solvents and dispersants used in the production of pesticides and pigments.
3. The main uses of NMP in the electronics industry are as follows:
(1) NMP is used as a solvent for polyvinylidene fluoride and electrode auxiliary materials for lithium-ion batteries; (2) it can be used for photoresist removal and LCD liquid crystal material production; (3) it is used as a solvent for pharmaceutical production; (4) it is used for the cleaning of precision instruments and circuit boards in the semiconductor industry.
How we started
【Product Packaging】
The chemical properties of this product are not active, except for copper, it is non-corrosive to other metals such as carbon steel and aluminum. It is packed in galvanized iron drums, stored and transported according to general chemical regulations, and the net weight is 200kg/drum. ISOTANK tank for bulk.
【Storage and transportation conditions】
Store in a cool, ventilated warehouse, moisture-proof, away from fire and heat sources, and separate from oxidant. Handle lightly and lightly unload, keep the package intact and prevent leakage.
Product parameters
Industrial grade
|
Inspection items |
Standard requirements and marked value requirements |
|
|
Excellent product |
First-class product |
|
|
Appearance |
Colorless or yellowish transparent liquid |
|
|
Purity W %， ≥ |
99.90 |
99.50 |
|
Moisture content（%）， ≤ |
0.03 |
0.05 |
|
Chromaticity Hazen units (platinum-cobalt number), ≤ |
20 |
30 |
|
γ-Butyrolactone，W % ≤ |
0.05 |
0.10 |
|
Refractive index |
1.4680～1.4720 |
|
|
Total amines W % ≤ |
0.01 |
/ |
|
PH value (1ml/10ml) aqueous solution |
7－10 |
/ |
Electronic grade
|
Serial Number |
Test items |
Quality Index |
|
1 |
Purity（%），≥ |
99.9 |
|
2 |
Moisture content（%），≤ |
0.02 |
|
3 |
Chroma (Pa-Co) number，≤ |
15 |
|
4 |
GBL（%），≤ |
0.03 |
|
5 |
Total amines（mg/kg）≤ |
20 |
|
6 |
CL-，（mg/kg）≤ |
0.5 |
|
7 |
SO42-（mg/kg）≤ |
0.5 |
|
8 |
NO3-（mg/kg）≤ |
0.5 |
|
9 |
sodium（μg/kg）≤ |
10 |
|
10 |
Potassium（μg/kg）≤ |
10 |
|
11 |
iron（μg/kg）≤ |
10 |
|
12 |
copper（μg/kg）≤ |
10 |
|
13 |
magnesium（μg/kg）≤ |
10 |
|
14 |
zinc（μg/kg）≤ |
10 |
|
15 |
aluminum（μg/kg）≤ |
10 |
|
16 |
calcium（μg/kg）≤ |
10 |
|
17 |
chromium（μg/kg）≤ |
10 |
|
18 |
manganese（μg/kg）≤ |
10 |
|
19 |
nickel（μg/kg）≤ |
10 |
|
20 |
lead（μg/kg）≤ |
10 |
Certificate
FAQS