Basic product information
Product name: Morpholine 99.5%
CAS No.: 110-91-8
EC No.: 203-815-1
Synonyms: Tetrahydro-1,4-oxazine, 1-Oxa-4-azacyclohexane
Molecular Formula: C4H90N
Molecular Weight: 87.12
SMILES: C1COCCN1
Typical Physical & Chemical Properties
| Parameter | Typical Value |
|---|---|
| Melting Point | -5 ℃ |
| Boiling Point | 128 ~ 129 ℃ (760 mmHg) |
| Flash Point (Closed Cup) | 32 ℃ |
| Autoignition Temperature | 255 ℃ |
| Explosion Limits (Vol.%) | 1.4 ~ 11.2 % |
| Viscosity (20 ℃) | ~2.2 mPa·s |
| Vapor Pressure (20 ℃) | 7 mmHg |
| Odor | Characteristic amine-like odor |
| Solubility | Fully miscible with water, alcohols, ethers, ketones, aromatic hydrocarbons |
| pH (10% aqueous solution) | ~11.0 |
| Hygroscopy | Hygroscopic under ambient air |
Quality Specifications
| Item | Industrial Standard Grade | High Purity Grade | Test Method |
|---|---|---|---|
| Appearance | Colorless clear liquid | Colorless clear liquid | Visual Inspection |
| Purity (GC) | ≥99.0 % | ≥99.5 % | Gas Chromatography |
| Color (Pt-Co / APHA) | ≤15 Hazen | ≤10 Hazen | Platinum-Cobalt Method |
| Water Content (KF) | ≤0.30 % | ≤0.20 % | Karl Fischer Titration |
| Refractive Index (n₂₀ᴰ) | 1.4530 ~ 1.4550 | 1.4530 ~ 1.4550 | Refractometer |
| Density (20 ℃) | 0.999 ~ 1.003 g/mL | 0.999 ~ 1.003 g/mL | Pycnometer |
| Free Amine Impurity | ≤0.10 % | ≤0.05 % | Titration |
| Evaporation Residue | ≤0.01 % | ≤0.005 % | Gravimetry |
Product Characteristics
- Aliphatic heterocyclic secondary amine, possesses both amine and ether chemical properties.
- Excellent alkalinity, widely used as neutralizer, corrosion inhibitor and catalyst.- Good compatibility with many organic solvents and synthetic resin systems.
- Easy to form salts with inorganic acids and organic acids; participates in alkylation, acylation reactions.
⚠️ Avoid contact with strong oxidants, strong acids, nitrite (risk of nitrosamine formation).
Applications
Rubber industry: raw material for rubber vulcanization accelerators
Water treatment: boiler steam line volatile corrosion inhibitor (VCI)Organic synthesis: intermediate for pharmaceuticals, agrochemicals, optical brighteners
Coatings & printing ink: catalyst, pH regulator and anti-rust additive
Synthetic detergent, emulsifier formulation raw material
Extraction solvent for fine chemical separation
Handling & Storage
Store in tightly sealed carbon steel drums, cool, dry, well-ventilated warehouse.
Storage temperature below 30 ℃; keep away from heat, open flame and ignition sources.Separate from strong oxidizing agents, strong acids, nitrite salts.
Prevent vapor inhalation and prolonged skin contact; wear chemical resistant gloves, safety goggles.
Implement static grounding during liquid transfer.
Packing
200kg/iron drum, 16 tons/20"FCL
23500kg/ISOTank
chemical.tnj
+8618949823763
tnjchem
2881500864