n-Butane C4H10
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Category：Specialty Gases Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
CAS No.: 106-97-8
UN No.: 1011
EINECS No.: 203-448-7
Molecular weight: 58.122
Appearance: colorless, odorless
Melting point: -138 ℃
Boiling point: -0.5 ℃
Density: 2.48 kg/m³
DOT Class: 2.1
Label: Flammable gas
Packaging specifications
| Cylinder specifications | Content | |
| Cylinder capacity | Valve | Weight |
| 47L | CGA350 | 20kg |
| 118L | YSF-2 | 50kg |
| 926L | YSF-2 | 470kg |
| International standard tank container | 12ton | |
Industrial grade n-butane 98%
| Specifications | 98% |
| Isobutane | ≤ 0.1% |
| Methane | ≤ 0.1% |
| Ethane | ≤ 1.0% |
| Propane | ≤ 1.0% |
| Dibutylene | ≤ 0.1% |
| CS+ | ≤ 0.1% |
| Sulfur | ≤ 1.0ppm |
| Carbon dioxide | ≤ 50 ppm |
| Water | ≤ 20 ppm |
Industrial grade n-butane 99.5%
| Specifications | 99.5% |
| Residual evaporation | ≤ 100 ppm |
| Acidity | ≤ 1.0 ppm |
| Sulfur | ≤ 1.0 ppm |
| Water | ≤ 10 ppm |
Electronic grade n-butane 99.99%
| Specifications | 99.99% |
| Propane | ≤ 5 ppm |
| Propylene | ≤ 2 ppm |
| Isobutane | ≤ 25 ppm |
| C4 | ≤ 8 ppm |
| C5 | ≤ 2 ppm |
| Water | / |
| Total sulfur | / |
Gas introduction
N-butane is an organic compound with the chemical formula C4H10. It is a common alkane and a colorless, easily liquefied gas at room temperature and pressure.
In addition to being used directly as a fuel, n-butane is also used as a subcritical biotechnology extraction solvent, refrigerant, and organic synthesis raw material. Butane is dehydrogenated to butene or butadiene in the presence of a catalyst, and is isomerized to isobutane in the presence of sulfuric acid or anhydrous hydrofluoric acid. Isobutane is catalytically dehydrogenated to isobutylene. Isobutane can be used as an alkylating agent to react with olefins to produce branched hydrocarbons with good anti-explosion properties. Butane can be catalytically oxidized to produce maleic anhydride, acetic acid, acetaldehyde, etc.; it can be halogenated to produce halogenated butane; it can be nitrated to produce nitrobutane; it can be catalytically catalyzed to produce carbon disulfide at high temperature; it can be converted into hydrogen by steam conversion. In addition, butane can be used as a motor fuel blend to control volatile components; it can also be used as a deasphalting agent for heavy oil refining; a wax precipitant in oil wells; an overflow agent for secondary oil recovery, a resin foaming agent, a refrigerant for converting seawater into fresh water, and an olefin polymerization solvent.
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