Details:

Product Description:

Introduction

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

Reference Information

pH range of acid-base indicator discoloration	7.7 - 8.0
LogP	-0.46 at 25℃
NIST chemical information	information provided by: webbook.nist.gov (external link)
EPA chemical substance information	information provided by: ofmpeb.epa.gov (external link)
Overview	N-methylpyrrolidone (NMP), molecular formula: C5H9NO, English: 1-methyl-2-pyrrollidinone, appearance is colorless to light yellow transparent liquid, slightly ammonia odor, miscible with water in any proportion, soluble in ether, acetone and Ester, halogenated hydrocarbons, aromatic hydrocarbons and other organic solvents, almost completely mixed with all solvents, boiling point 204 ℃, flash point 91 ℃, strong hygroscopicity, stable chemical properties, no corrosion to carbon steel, aluminum, slightly corrosive to copper. It has the advantages of low viscosity, good chemical stability and thermal stability, high polarity, low volatility, infinite miscibility with water and many organic solvents. This product is a micro drug, the allowable limit concentration in the air is 100PPM.
reference quality index	inspection item index appearance colorless transparent liquid (above 25 ℃) purity% ≥ 99.5 moisture% ≤ 0.1 chroma HaZen ≤ 25 refractive index N20D 1.468-1.471 density 1.032-1.035
Use	N-methylpyrrolidone (NMP) is a polar aprotic solvent. With low toxicity, high boiling point, superior dissolution. The advantages of strong selectivity and good stability. Widely used in aromatic extraction, acetylene, olefin, Diene purification, polyvinylidene fluoride solvent, lithium ion battery electrode auxiliary material, synthesis gas desulfurization, lubricating oil refining, lubricating oil antifreeze, olefin extraction agent, insoluble engineering plastics polymerization solvents, agricultural herbicides, insulating materials, integrated circuit manufacturing, semiconductor industry precision instruments, circuit board cleaning, PVC tail gas recovery, cleaning agents, dye additives, dispersants, etc. It is also used as a solvent for polymers and as a medium for polymerization, such as engineering plastics and aramid fibers. In addition, it can also be used in pesticides, pharmaceuticals, detergents and the like. The main uses of different grades of N-methyl pyrrolidone are listed below: 1. Industrial grade: lubricating oil refining, lubricating oil antifreeze, synthesis gas desulfurization, electronic insulation materials, agricultural herbicides, pesticide additives, PVC tail gas recovery, high-grade coatings, inks, pigments and other production additives and dispersants. For example, it can be used as a solvent for extracting aromatic hydrocarbons in lubricating oil to achieve the purpose of refining lubricating oil. Because NMP has great solubility to resin, it can be used as a solvent for resin processing in the manufacture of coatings, floor paints, varnishes, composite coating film, integrated circuit enameled wire insulation materials, fiber fabrics and adhesives and other products. 2. Ordinary Grade: Extraction and recovery of basic organic raw materials, such as acetylene concentration and extraction of butadiene, isoprene and aromatic hydrocarbons. It can be used as a solvent for recovering acetylene from natural gas or light naphtha thermal pyrolysis gas, and the purity of the Concentrated Acetylene can be recovered to 99.7%. As an extractant for separating and recovering high purity butadiene from cracked C4 hydrocarbons, the recovery rate was 97%, and the purity of recovered butadiene was 99.7%. It was used as an extractant for recovering high purity isoprene from C5 hydrocarbons, and the recovery purity of isoprene was 99%; when used as aromatic extractant, because of its high solubility and low vapor pressure for aromatic hydrocarbons, the loss rate of extractant is low and the recovery rate of aromatic hydrocarbons is high. 3, reagent grade: Integrated circuits, hard disks and other requirements to strictly control the metal ions and fine particles of the industry, degreasing, dewaxing, polishing, rust, paint, etc, such as used as Photoresist removal liquid, IC semiconductor industry precision instruments, LCD liquid crystal materials, PCB Printed circuit board, hard disk cleaning; And artificial kidney functional membrane liquid, seawater desalination membrane liquid and other solvents produced in the pharmaceutical industry. is an excellent solvent, which is widely used as an extractant for aromatic extraction, lubricating oil refining, acetylene concentration, synthesis gas desulfurization, etc, N-methyl pyrrolidone is an excellent extraction solvent, widely used for aromatic extraction, acetylene concentration, the extraction agent in the process of butadiene separation and desulfurization of synthesis gas is also a solvent in the production of pesticides, engineering plastics, coatings, synthetic fibers, integrated circuits, etc., and can also be used as industrial detergents, dispersants, dyes, lubricating Oil antifreeze, etc. The product has low toxicity, rats oral LD50 is 7ml/kg. widely used in advanced lubricating oil refining, polymer synthesis, insulating materials, pesticides, pigments and cleaning agents, etc. used in aromatic extraction, purification of acetylene, olefins and diolefins; solvent for polymer and polymerization medium, such as polyamide, polyimide, polyphenylene sulfide and other engineering plastics and aramid fiber used as solvent and extractant. NMP is a polar aprotic solvent with low toxicity, The advantages of high boiling point, superior solubility, strong selectivity and good stability. Widely used in aromatic extraction; Acetylene, olefin, Diene purification. Solvents that are also used for the polymer and media for the polymerization reaction are required. Such as polyamide, polyimide, polyphenylene sulfide and other engineering plastics and aramid fiber. In addition, it is also used for insulating materials, pesticides, pigments and detergents.
production method	is derived from the reaction of γ-butyrolactone with methylamine. The first step of the reaction is the formation of 4-hydroxy-n-methylbutyramide from γ-butyrolactone and methylamine, and the second step is further dehydration to N-methylpyrrolidone. The two-step reaction can be carried out continuously in a tubular reactor with a molar ratio of γ-butyrolactone to methylamine of 1:1.15, a pressure of about 6MPA and a temperature of 250 °c. After completion of the reaction, the reaction mixture was concentrated and distilled under reduced pressure to obtain a finished product. The yield was 90%. If the kettle type counter is used for production, the amount of methylamine is 1.5-2.5 times of the theoretical amount, and the laboratory preparation is taken as an example. In a 280 ml autoclave, 2mol of γ-butyrolactone and 4 mol of liquid methylamine were added, and the mixture was sealed and heated at ° C. For 4 hours. After cooling, Excess methylamine was released, and distillation was carried out to collect the 201-202 ° C. Fraction to obtain about 180g of the product in a yield of about 90%. Raw material consumption (kg/g)γ-butyrolactone 980 methylamine (40%) 860
category	flammable liquid
toxicity grade	poisoning
Acute toxicity	oral-rat LD50: 3914 mg/kg; Oral-mouse LD50: 5130 mg/kg
stimulation data	eye-rabbit 100 mg moderate
flammability hazard characteristics	flammable in open flame, high temperature, strong oxidant; thermal decomposition of toxic nitric oxide gas
storage and transportation characteristics	The package is complete, light, light; The warehouse is ventilated, away from open flame, high temperature, separate from oxidant
fire extinguishing agent	foam, carbon dioxide, dry powder, sand
Occupational Standard	TWA 100 PPM (400 mg/m3); sel 100 mg/m3
spontaneous combustion temperature	518 ° F.

Our advantage:

1. High quality with competitive price:

1) Standard:BP/USP/EP/Enterprise standard

2) All Purity≥99%

3) We are manufacturer and can provide high quality products with factory price.

 2, Fast and safe delivery

1) Parcel can be sent out in 24 hours after payment.Tracking number available

2) Secure and discreet shipment.Various transportation methods for your choice.

3) Customs pass rate ≥99%

4) We have our own agent/remailer/distributor who can help us ship our products very fast and safe,

and we have stock in there for transferring.

Product Packaging：

1) 1kg/bag (1kg net weight, 1.1kg gross weight, packed in an aluminum foil bag)

2) 25kg/drum (25kg net weight, 28kg gross weight; Packed in a cardboard-drum with two plastic-bags inside; Drum Size: 510mm high, 360mm diameter)

 Storage：

Stored in a cool and dry well-closed container. Keep away from moisture and strong light/heat.

Delivery：

Usually within3-5 working days after full payment.

transport：

EMS,DHL, TNT, UPS ,FEDEX, BY AIR, BY SEA

DHL Express, FedEx and EMS for quantity less than 50KG, usually called as DDU service; 

Sea shipping for quantity over 500KG; And air shipping is available for 50KG above;

For high value products, please select air shipping and DHL express for safe;

Our Service:
1. Fast Delivery: We can delivery within 24 hours upon receipt of your payment.
2. Quality can be promised. Hot sell to Worldwide.
3. Payment Terms: T/T,, t/t
4. Free Sample available at any time.
5. Tracking your order at any time. Inform your order's further new situation at any time.
6. Package: Professional packing with professional materials.

 

Packing:  
  1. Inner double plastic bags----25kg/Fiber drum (35*35*45cm, GW: 28kg, NW: 25kg); 

  2. Inner double plastic bags----5kg/Aluminum foil bag (GW: 6.5kg, NW: 5kg). 

  3. Inner double plastic bags----1kg/Aluminum foil bag (GW: 1.5kg, NW: 1kg). 

P.S.: we accept packaging customization. 

  
Delivery:   

  1. Stock products are normally shipping within 3 working days.  

  2. For rush delivery, please contact our sales team for particular arrangement. 

Shipping Details: 
  1. We ship goods via DHL, Fedex, UPS, TNT, China post, NL Post and other couriers, weight from 10g to 1000kg or even bulker. 

  2. Shipping details & shipping documents will be provided and sent by email. 

  3. We keep tracking the shippment until clients well received. 

  4. After years export shipping experience, with professional and experienced cooperated forwarders, we ensure that goods can be delivered in multiple ways safetly and efficiently. 

About us

Our company specializes in processing and selling chemical raw materials, chemical products, pharmaceutical intermediates, veterinary medicine intermediates, dye intermediates, pigments, cosmetics raw materials and chemical reagents,  

We have compalete sales and service team , information feedback vertical integration of a sound marketing network, products are sold throughout the country and exported to South Asia, Europe, America, Africa and other more than 20 countries and regions.  

Companies adhering to the "pursuit of quality, innovation and development" business philosophy, to serve as a foundation, for the survival by the quality, seek development by science and technology, adhere to quilty comes first,fair price,good sense of customer service and responsibility. in the future hebei Nengqian import and export trade Co.,Ltd will always hold "integrity, innovation" business philosophy, to achieve honesty management, on the way of specialization, internationalization,  Keep moving!  

 

FAQ: 
1. Are you a trade company or factory   
We are a  factory with our own trading company.  

2.How do you control the quality   
Our factory is equipped with professional technicians to control quality, out inspectors take sample for testing every 2 hours to ensure the quality of our production. We also accept BV, SGS or any other Third-party inspection.   

3. How long is lead time   
We deliver goods within 3 days for small order, 7-10 days for bulk order.   

4. Where is your factory located  How can I visit the factory   
 Our factory located in HEBEI, China.

5. Can i get some samples  
  Yes, we can supply free sample, but the shipping cost be paid by our customers. 

6. How to start orders or make payments  
  Proforma invoice will be sent first after confirmation of order, enclosed our bank information.Payment by T/T,  

7. How to confirm the Product Quality before placing orders  
  You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. 
  You can send us your product specifications and requests,we will manufacture the products according to your requests. 

8. How long is lead time

We deliver goods within 3 days for small order, 7-10 days for bulk order.

 

9. How do you treat quality complaint

  First of all, our quality control will reduce the quality problem to near zero. If there is a realquality problem caused by us, we will send you free goods for replacement or refund your loss.