872-50-4 | N-methyl-2-pyrrolidone

Chemical type

• Polar aprotic organic solvent
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• Polar aprotic physical solvent
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• Organic solvent (polar aprotic)
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• Polar aprotic organic solvent
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Key properties

• High boiling point
• Strong solvating ability for aromatic and polar organic compounds

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• High dielectric constant
• Strong solvating power
• Disrupts ionic hydration shells

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• High H₂S selectivity over CO₂
• Low regeneration energy (moderate, 2.5–3.0 GJ/ton CO₂)
• Low vapor pressure and corrosivity
• Effective at high pressures
• Viscosity of 1.7 mPa·s

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• High solvating power for polymers like PPSU

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• High solvency power
• Good compatibility with polymers
• High boiling point

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Solvent for TPBTC

Enables:

• Formation of homogeneous TPBTC solution
• Infiltration into porous α-Al₂O₃ substrates

Completely removed during low-temperature heating (200–250 °C)

Functional significance

• Facilitates confined assembly of HOF-8
• Does not remain in final membrane structure

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• Major component of electronic cleaning agents
• Target solvent for desalination and recovery
• Used to evaluate membrane stability and performance

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• Selective H₂S removal in natural gas processing
• Blended with MEA for hybrid CO₂ capture

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• Primary solvent for preparing the polymer dope solution in membrane fabrication via immersion precipitation

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• Solvent for membrane dope solution preparation
• Dispersing medium for MXene nanosheets

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Classification by use

• Chemical used as a solvent for framework precursor processing
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• Chemicals used as industrial solvents requiring desalination
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• Physical solvent for mercaptan and acid gas removal
• Solvents in low-loss, high-selectivity systems
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• Solvents used in polymer processing and membrane fabrication
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• Chemicals used as industrial solvents
• Chemicals used in polymer processing
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A trustworthy factory and manufacturer

1. [Cite:1] Confined conversion of hydrogen-bonded organic framework into carbon molecular sieve-interlocked-substrate membrane for efficient CO2/CH4 separation, Advanced Membranes, Volume 7, June 2026, 100191
2. [Cite:2] Solvent desalination nanofiltration (SDNF) membranes with rigid microporous network, Advanced Membranes, Volume 7, June 2026, 100203
3. [Cite:3] Hybrid ionic liquid amine solvents for CO₂ capture from natural gas: a systematic review of techno-economic and environmental performance, Carbon Capture Science & Technology, Volume 18, March 2026, 100549
4. [Cite:4] Sustainable nanohybrid modified polyphenylsulfone ultrafiltration membranes for efficient protein separation, Current Research in Green and Sustainable Chemistry, Volume 12, 2026, 100500
5. [Cite:5] Engineering high flux 2D titanium MXene incorporated membranes for broad spectrum pollutant rejection, Current Research in Green and Sustainable Chemistry, Volume 12, 2026, 100506