ISOBUTANE #CAS75-28-5
CAS Number:75-28-5
Chemical Formula: C4H10
Synonyms:
ISOBUTANE
2-METHYLPROPANE, FUEL CYLINDER FOR SETAF LASH (1EA=1.3OZ CYLINDER)
2-METHYLPROPANE, PRESSURE TIN WITH 250 M L (NET ~140 G)
Appearance:Colorless Gas
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
ISOBUTANE #CAS75-28-5
Isobutane is a hydrocarbon refrigerant, a colorless, flammable gas. It has a specific gravity of 0.5510 (25℃), a melting point of -145℃, and a boiling point of -11.73℃. It is found in petroleum gas, natural chemical gas, and cracked gas. Isobutane can also be produced by isomerization of n-butane. It is slightly soluble in water, chemically stable, and forms explosive mixtures with air, with an explosion limit of 1.9%–8.4% (by volume).
Application of ISOBUTANE
In the production of propylene glycols and oxides and polyurethane foams and resins; as component of motor fuels and aerosol propellants; as an industrial gas carrier and general fuel source.
Organic synthesis, refrigerant, motor fuels, aerosol propellant, synthetic rubber, instrument calibration fluid.
Isobutane occurs in petroleum, natural gas,and petroleum cracking products. It is usedas a fuel gas or a liquefied petroleum gas. Itis also used in organic synthesis.
| ISOBUTANE Chemical Properties |
| Melting point | −160 °C(lit.) |
| Boiling point | −12 °C(lit.) |
| density | 2.064 g/mL at 25 °C(lit.) |
| vapor density | 2.01 (21 °C, vs air) |
| vapor pressure | 72.2 psi ( 37.7 °C) |
| refractive index | 1.3518 |
| Fp | -83 °C |
| form | Colorless gas |
| color | Colorless, very flammable gas with a faint odor |
| explosive limit | 8.3% |
| Water Solubility | 48.9 mg/kg at 25 °C (shake flask-GC, McAuliffe, 1963, 1966) |
| BRN | 1730720 |
| Henry's Law Constant | 1.171 atmm3/mol at 25 °C (Hine and Mookerjee, 1975) |
| Exposure limits | NIOSH REL: TWA 800 ppm (1,900 mg/m3). |
| Stability: | Stable. Extremely flammable. May form explosive mixtures with air. |
| Cosmetics Ingredients Functions | PROPELLANT |
| Cosmetic Ingredient Review (CIR) | ISOBUTANE (75-28-5) |
| InChI | 1S/C4H10/c1-4(2)3/h4H,1-3H3 |
| InChIKey | NNPPMTNAJDCUHE-UHFFFAOYSA-N |
| SMILES | CC(C)C |
| LogP | 2.760 |
| Surface tension | 12.8 mN/m at 273.41K |
| CAS DataBase Reference | 75-28-5(CAS DataBase Reference) |
| EPA Substance Registry System | Isobutane (75-28-5) |
| Safety Information |
| Hazard Codes | F+ |
| Risk Statements | 12 |
| Safety Statements | 9-16 |
| OEB | A |
| OEL | TWA: 800 ppm (1900 mg/m3) |
| RIDADR | UN 1969 |
| WGK Germany | - |
| RTECS | TZ4300000 |
| F | 4.5-31 |
| Autoignition Temperature | 860 °F |
| TSCA | TSCA listed |
| DOT Classification | 2.1 (Flammable gas) |
| HazardClass | 2.1 |
| HS Code | 2901100000 |
| Storage Class | 2A - Gases |
| Hazard Classifications | Flam. Gas 1A Press. Gas Liquefied gas |
| Hazardous Substances Data | 75-28-5(Hazardous Substances Data) |
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