Product Identification
Chemical Name: 1-Cyclohexyl-2-pyrrolidone
Synonyms: N-Cyclohexyl-2-pyrrolidone, CHP
Molecular Formula: C10H17NO
Molecular Weight: 167.25SMILES: O=C1CCCN1C1CCCCC12.
Typical Physical & Chemical Properties
| Melting Point | 12 ~ 15 °C |
| Boiling Point | ~284 °C (760 mmHg); 154 °C (7 mmHg) |
| Flash Point (Closed Cup) | 141 °C |
| Viscosity (25 °C) | ~12 mPa·s |
| Vapor Pressure (25 °C) | 0.05 mmHg |
| Solubility | Miscible with water, alcohols, esters and aromatic hydrocarbons |
Quality Specifications
| Item | Industrial Grade | Electronic Grade | Test Method |
|---|---|---|---|
| Appearance | Colorless to pale yellow clear liquid | Colorless clear liquid | Visual inspection |
| Purity (GC) | ≥99.0 % | ≥99.5 % | Gas Chromatography |
| Color (Pt-Co) | ≤30 Hazen | ≤15 Hazen | Platinum-Cobalt Method |
| Water Content (KF) | ≤0.30 % | ≤0.15 % | Karl Fischer Titration |
| Refractive Index (n₂₀ᴰ) | 1.4970 ~ 1.5000 | 1.4970 ~ 1.5000 | Refractometer |
| Density (25 °C) | 1.005 ~ 1.010 g/mL | 1.005 ~ 1.010 g/mL | Pycnometer |
| Acidity (as Pyrrolidone) | ≤0.05 % | ≤0.03 % | Acid-Base Titration |
| Evaporation Residue | ≤0.01 % | ≤0.005 % | Gravimetry |
Product Characteristics
- High-boiling polar aprotic solvent with much lower volatility compared with NMP.
- Outstanding solvency for high polymers, polyimide, aramid resin, pigments and coating materials.
- Excellent thermal stability, suitable for high-temperature coating and film-forming processes.
- Moderate evaporation rate, facilitating uniform film formation.
Applications
- High-performance solvent for specialty polymers, industrial coatings and printing inks.
- Electronic chemicals: electronic paste, precision cleaner, alternative solvent for NMP.- Reaction medium and extraction solvent for organic synthesis.
- Carrier solvent for pharmaceutical and agrochemical intermediates.
Handling & Storage
Keep container tightly sealed. Store in cool, dry and well-ventilated warehouse.
Separate from strong oxidizing agents and strong acids.Avoid prolonged skin contact and inhalation of vapour.
Recommended operating temperature above 15 °C to prevent thickening.
Packaging
200 L steel drum / IBC tote tank
Disclaimer
The data provided above represents typical values only and shall not be regarded as formal specification. Users shall conduct independent evaluation to confirm suitability for their specific applications.
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