n-Butane R600
Ⅰ. Basic Information
| Item | Details |
|---|---|
| Product Name | n-Butane |
| Molecular Formula | C₄H₁₀ |
| CAS No. | 106-97-8 |
| UN No. | UN 1011 |
| Hazard Class | 2.1 Flammable Gas |
n-Butane is a straight-chain alkane hydrocarbon and one of the isomers of butane. Another common isomer is Isobutane.
Ⅱ. Physical & Chemical Properties
| Property | Value |
|---|---|
| Appearance | Colorless gas |
| Odor | Slight petroleum-like odor |
| Boiling Point | -0.5°C |
| Melting Point | Approx. -138°C |
| Relative Density | Approx. 2.0 (Air = 1) |
| Flash Point | ＜ -60°C |
| Auto-ignition Temperature | Approx. 405°C |
| Explosive Limits | 1.8% – 8.4% in air |
| Water Solubility | Nearly insoluble in water |
| Solubility | Soluble in ethanol, ether, and organic solvents |
Main Characteristics
Gas under normal temperature and pressure
Easily liquefied under pressure
Highly volatile
Extremely flammable
Ⅲ. Applications
1. Refrigerant Industry
n-Butane can be used as:
·Refrigerant
·Foaming agent
·Component of blended refrigerants
Widely applied in:
·Refrigerators
·Freezers
·Small refrigeration systems
2. Fuel Applications
Widely used for:
·Lighter gas
·Portable gas stoves
·LPG blended fuel
·Portable gas cartridges
Advantages:
·High calorific value
·Easy liquefaction and storage
·Cleaner combustion
3. Petrochemical Feedstock
n-Butane is an important petrochemical raw material used in the production of:
Butene
Maleic Anhydride
MTBE
Synthetic rubber
Alkylate gasoline
It is widely used in refining and cracking industries.
4. Foaming Agent
Used in:
EPS/XPS foam
Polyurethane foam
Insulation materials
It can partially replace high-GWP foaming agents.
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