N-methyl-pyrrolidinone (NMP,872-50-4,1-Methyl-2-pyrrolidinone) abbreviated as NMP, molecular formula :C5H9NO, English: 1-Methyl-2-Pyrrolidinone,NMP appearance is colorless to light yellow transparent liquid, slightly ammonia odor, NMP is miscible with water in any proportion, soluble in ether, acetone and ester, halogenated hydrocarbon, aromatic and other organic solvents, almost completely mixed with all solvents, NMP boiling point 204 ° C, flash point 91 ° C, strong moisture absorption, chemical stability, no corrosion to carbon steel, aluminum, slightly corrosive to copper. NMP has the advantages of low viscosity, good chemical and thermal stability, high polarity, low volatility, and infinite miscibility with water and many organic solvents. NMP is a microdrug with an allowable limit concentration of 100PPM in the air. Medicine & Agriculture First, NMP is widely used as a reaction intermediate in the field of organic synthesis. Due to its high reactivity and good stability, it can participate in a variety of organic synthesis reactions, such…

N-methylpyrrolidone, also known as 1-methyl2-pyrrolidone,… Referred to as NMP, it is a polar aprotic transfer solvent with high boiling point, strong polarity, low viscosity, strong dissolution ability, no corrosion, little toxicity, strong biodegradation ability, low volatility, excellent chemical stability and thermal stability.nmp Chinese name N-methylpyrrolidone is an organic compound, chemical formula C5H9NO, colorless to light yellow transparentLiquid, slightly ammonia odor, miscible with water in any proportion, soluble in ether, acetone and esters, halogenated hydrocarbons, aromatics, etcOrganic solvents, almost completely mixed with all solvents.nmp properties: colorless transparent oily liquid, slightly ammonia odor.Density :1.028g/cm3, melting point :-24℃, boiling point :202℃, refractive index :1.470,Viscosity :1.65mPa·s, flash point :86.1℃, ignition point :346℃Solubility: Easily soluble in water, ethanol, ether, acetone, ethyl acetate, chloroform and benzene, can be dissolved in most organic and inorganic compounds, polar gases, natural and synthetic polymer compounds nmp uses: excellent advanced solvent, polarity solvent with strong selectivity and good stability, excellent…

N-methylpyrrolidone (NMP) is an important organic solvent with the following physical and chemical properties:Chinese name: N-methylpyrrolidone English name: N-methylpyrrolidin-2-one Chinese alias: 1-methyl-2-pyrrolidone | n-methyl-pyrrolidone | 1-methyl-2-pyrrolidone | n-methyl-a-pyrrolidone | methyl-pyrrolidone | 1-methyl-pyrrolidone | 1-methyl-pyrrolidone CAS Number: 872-50-4 Density: 1.0± 0.1g /cm3 Boiling point: 202.0±0.0 °C at 760 mmHg Melting point: −24 °C(lit.) Molecular formula: C5H9NO Molecular weight: 99.131 Flash point: 86.1±0.0 °C Accurate mass: 99.068413 PSA: 20.31000 LogP: -0.40 Vapor density :3.4 (vs air) Vapor pressure :0.3±0.4 mmHg at 25°C Refractive index :1.470 Storage: In the presence of dry inert gas, keep the container sealed and store in a cool, dry place. 1. Appearance: N-methylpyrrolidone is a colorless and transparent liquid. 2. Boiling point: N-methylpyrrolidone has a boiling point of about 202°C, so it is a less volatile liquid at room temperature. 3. Density: The density of N-methylpyrrolidone is about 1.03 g/cm³, which is slightly heavier than water. 4. Solubility:…

Chemical name: N-methyl-2-pyrrolidone; 1-methyl-2-pyrrolidone; Nitro-methylpyrrolidone.CAS NO. : 872-50-4Subtype: C5H9NO   English name: N-methyl-2-pyrrolidoneDescription: N-methylpyrrolidone (NMP), a nitrogen heterocyclic compound, molecular formula C5H9NO, boiling point 204°C, a slightly ammoniacal flavor of the liquid, miscible with water in any proportion, almost with all solvents (ethanol, acetaldehyde, ketone, aromatic hydrocarbons, etc.) completely mixed. NMP is a polar aprotic transfer solvent with high boiling point, strong polarity, low viscosity, strong dissolution ability, no corrosion, little toxicity, strong biodegradation ability, low volatility, excellent chemical stability and thermal stability.Production process: NMP industrialization time is long, the technology is mature, its production process from 1,4 butanediol (BDO) dehydrogenation to produce gamma-butanolactone (GBL), and then gamma-butanolactone and monomethylamine amination reaction to produce products, then distillation and purification to finished NMP. Application field N-methylpyrrolidone is an excellent advanced solvent, which is used in petrochemical, pesticide, medicine, electronic materials and other fields. It can be used as acetylene concentration, syngas…

N-methylpyrrolidone (NMP)Chemical name: nitro-methylpyrrolidone; 1-methyl-2-pyrrolidone; N-methyl-2-pyrrolidoneCAS NO. : 872-50-4Subtype: C5H9NO English name: N-methyl-2-pyrrolidoneCharacteristics: colorless transparent liquid, strong hygroscopicity, miscible with water in any proportion, miscible with ethanol, ether, acetone, aromatic hydrocarbons and other solvents.Use:Micro level: Used in liquid crystal, semiconductor, circuit board, carbon nanotubes and other high-end microelectronics industry.Electronic grade: Used in aramid fiber, PPS, ultrafiltration membrane, OLED panel photoresist etching and other industries.Battery level: Used in lithium battery and other industries.Industrial grade: Used in acetylene enrichment, butadiene extraction, electrical insulation materials, high-grade coatings, pesticide additives, ink, pigments, industrial cleaning agents and other industries.Product characteristics: colorless transparent liquid, boiling point 204℃, flash point 91℃, strong hygroscopic, can be miscible with water, soluble in ether, acetone and various organic solvents.Price information NMP price consultation, you can directly consult the manufacturer, you can also consult on relevant public information websites, such as business, CBC metal network, Longzhong information, Changxin chemical public number,…

NMP is one of the most commonly used accessories for lithium batteries. NMP is the solvent of PVDF binder, is the English abbreviation of N-methylpyrrolidone, a colorless transparent liquid, with low toxicity, high boiling point, strong polarity, low viscosity, strong solubility, chemical stability, excellent thermal stability and other characteristics, can be miscible with water, PVDF, positive and negative electrode materials, etc., widely used in the preparation of lithium batteries. When making electrode sheets, NMP is used as a solvent to fuse various materials required for electrodes, such as binder, positive active substance, conductive agent, etc., so that the binder is fully in contact with other substances and evenly distributed. As a solvent, the quality of NMP directly affects the quality of pulping coating of lithium-ion batteries, which is an indispensable solvent material. From the perspective of the distribution of NMP application fields, it is mainly used in the preparation of…

N-methylpyrrolidone Material Safety Data Sheet Material safety data sheet Part I ChemicalsChinese name of chemical: N-methylpyrrolidoneChemical name or trade name: NMP Part II Composition/composition information Chemical name: N-methylpyrrolidoneHarmful ingredients: N-methylpyrrolidone concentration: ≧99.9%CAS No. : (EINECS number: 212-828-1)The third part is danger summary Risk category: No data availableRoute of invasion: contact (eyes and skin), ingestion (inhalation or ingestion)Health hazard: Eye: Too much contact can irritate the eyes. Skin: Prolonged or frequent contact can cause dermatitis, such as blisters, tears, edema, and/or redness of the skin. Ingestion: May cause dizziness, nausea, and/or irritation. Inhalation: Inhalation of high concentrations of this product can cause headache, dizziness, nervous confusion and/or nausea. Long-term inhalation: No life-shortening toxicity or carcinogenic effect was observed in rat tests.Environmental hazards: LC50 (light blue edible large sunfish) 832 mg/l, 22℃ LC50 (Pathead Minnow) 1072 mg/l, 22℃ LC50 (salmonfish) 3048 mg/l, 22℃Ignition hazard: This product is flammable, flash point is 99℃,…

Let’s take our attention away from the pericyclic reaction for a moment and discuss one of the reactions mentioned in the big book: This reaction, which appears on page 808 of the larger book, is an example of the Kornblum reaction, which is formally equivalent to DMSO oxidizing an alkane halide to a carbonyl compound. The reaction mechanism is very similar to Swern: As you can see, the C-H of the substrate is activated, the sigma bond electrons are “pulled” away by the formed onium ion during the reaction, and finally the onium ion has gained a pair of electrons, which are reduced to dimethyl sulfide. The R in the substrate halon can be a carbonyl group, an ester, a carboxylic acid, or an aromatics activated by an electron-withdrawing group, and the halogen atom can be Cl, Br, I. Under optimized conditions, the substrate can also be extended to aliphatic…

DMSO is widely used in biological and chemical experiments, almost irreplaceable, but how to safely use and protect DMSO? Main uses of DMSO: 1, used as a drug solvent. 2, for the cryopreservation of cells, including stem cells, embryos and various cell cultures. 3. As osmotic accelerators in topical pharmaceutical preparations: diclofenac sodium topical solution (approved in the United States for the treatment of signs and symptoms of osteoarthritis) and iodouridine topical solution (approved in Europe for the treatment of shingles). 4, used as a drug to relieve interstitial bladder inflammation. Main toxicity of DMSO: It is permeable to human skin and irritating to the eyes. DMSO has a certain toxic effect. It interacts with protein hydrophobic groups, leading to protein denaturation, and has vascular toxicity and hepatorenal toxicity. When it is used to avoid volatilization, it is necessary to prepare 1%-5% ammonia water for backup, and wash the skin…

DMSO is a natural chemical originally found in wood. Over the past 60 years, more than 40,000 articles have been published on this type of DMSO, but the public is not aware of the application of DMSO in medicine and health. Medicine and health refuse to advertise, so unlike ordinary consumer goods, people can be informed about them through advertising. Even in the United States, even complementary foods placed on the open shelves of supermarkets cannot be advertised to spread relevant knowledge. DMSO, approved by the US FDA in 1974, is still only used by a small number of experts and practitioners of alternative medicine and natural medicine in the health and medical fields. DMSO has solution and permeability to many drugs, and it also has anti-inflammatory and analgesic effects. DMSO can promote blood circulation and wound healing, and has diuretic and antistatic effects. It can increase drug absorption and…