Use and storage conditions of N-methylpyrrolidone 872-50-4

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: N-methylpyrrolidone is an excellent solvent that can dissolve many organic substances, such as polymers, resins, natural products, etc.

5. Polarity: N-methylpyrrolidone has a high polarity, so it is often used as a polar solvent in organic synthesis reactions.

6. Melting point: The melting point of N-methylpyrrolidone is about -24°C.

In general, N-methylpyrrolidone is a kind of organic solvent with high boiling point, high density and excellent solubility, which is often used in polymer, chemical, electronics and other fields. When using, it is necessary to pay attention to its volatility and irritation to the skin, and appropriate safety protection measures should be taken.

N-methylpyrrolidone (NMP) has many uses, mainly including the following aspects:

1. Organic solvent: NMP is an excellent organic solvent that can dissolve many organic substances, such as polymers, resins, natural products and so on. Therefore, it is widely used in chemical industry, polymer processing, coatings, ink, electronic materials and other fields.

2. Chemical raw materials: NMP can be used as solvent and intermediate in organic synthesis for the synthesis of polyamide fiber, polyamide resin, polyamide film, polyamide fiber, polyamide resin, polyamide film and other chemical products.

3. Electronic materials: NMP is used as a solvent in the electronics industry, such as for the preparation of semiconductor materials, optical films, electronic components, etc.

4. Pharmaceutical field: NMP is also used as a solvent in the pharmaceutical field, for example in the preparation of drug synthesis and drug delivery systems.

In general, N-methylpyrrolidone is a versatile organic solvent, which is widely used in many fields such as chemical industry, polymer, electronic materials, medicine and so on.

N-methylpyrrolidone (NMP) has a wide range of application scenarios, and the following are some of the main ones:

1. Chemical industry: NMP, as an organic synthetic solvent and intermediate, is used in the chemical industry to synthesize polyamide fiber, polyamide resin, polyamide film and other chemical products.

2. Polymer processing: As an excellent organic solvent, NMP is widely used in the dissolution, dispersion and molding process of polymers, such as in the processing of plastics, rubber, fibers and other polymers.

3. Electronic materials: NMP is used as a solvent in the electronics industry for the preparation of semiconductor materials, optical films, electronic components, etc.

4. Coatings and inks: As an organic solvent, NMP is often used in coatings, inks and other fields for dissolving and diluting resins, pigments, etc.

5. Pharmaceutical field: NMP is used as a solvent in the pharmaceutical field, for example in drug synthesis and the preparation of drug delivery systems.

6. Cleaning agent: NMP can also be used as a cleaning agent, for example in the cleaning process of electronic components.

In general, N-methylpyrrolidone has a wide range of applications in chemical industry, polymer processing, electronic materials, coatings and inks, medicine and other fields.
N-methylpyrrolidone (NMP), as an organic compound, requires special safety and protective measures when transported and stored. Here are some tips for NMP transportation and storage:

Transportation:

1. Packaging: NMP should be packaged in sealed containers, usually in corrosion-resistant stainless steel containers or special plastic drums to prevent leakage and volatilization.

2. Identification: In the process of transportation, the chemical name, dangerous nature, dangerous goods number and other relevant information of NMP must be marked on the package to ensure that transport personnel and relevant departments understand the risk.

3. Protection: During transportation, it should be avoided to mix with oxidizing agents, acids, alkalis and other chemicals to avoid chemical reactions.

Storage:

1. Place: NMP should be stored in a cool, dry, well-ventilated warehouse or warehouse, away from fire and heat sources.

2. Packaging: When storing, the packaging of NMP should be kept intact to prevent outside air, moisture and impurities from entering.

3. Fire prevention: The storage place should be far away from fire and heat sources, and it is prohibited to mix with chemicals such as oxidants, acids and alkalis to avoid fire or chemical reactions.

In general, the transportation and storage of NMP needs to comply with the relevant regulations and standards to ensure its safety and stability and avoid accidents. When dealing with NMP, the relevant safe operating procedures and protective measures should be strictly followed.

When using N-methylpyrrolidone (NMP), note the following:

1. Protective measures: When using NMP, you should wear appropriate protective equipment, including chemical protective clothing, chemical goggles, protective gloves and respiratory protective equipment to avoid the harm caused by contact and inhalation of NMP.

2. Ventilation: When dealing with NMP, it should be ensured that the operating place is well ventilated to reduce the concentration of NMP vapor and reduce the harm to the human body.

3. Avoid contact: Try to avoid direct contact of NMP with skin, eyes and respiratory tract. If you are exposed to NMP, rinse immediately with plenty of water and seek medical help.

4. Fire extinguishing measures: NMP is a flammable liquid and should be kept away from fire and heat sources. In case of fire, dry powder, carbon dioxide or foam extinguishing agent should be used to extinguish the fire.

5. Leakage treatment: If NMP leaks, immediate measures should be taken to prevent diffusion, absorption and cleaning with adsorbents or other suitable materials.

6. Storage: When storing NMP, it should be kept away from fire and heat sources and stored in a cool, dry and well-ventilated warehouse or warehouse to avoid mixing with oxidizing agents, acids, alkalis and other chemicals.

7. Disposal: When disposing of discarded NMP, local environmental regulations should be complied with and appropriate disposal methods should be adopted to avoid pollution to the environment.

In general, the use of NMP should strictly follow the relevant safe operating procedures and protective measures to ensure personal safety and environmental protection.