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Colorless C4H10 Highly Flammable Gases Butyl Hydride Electron Grade
Description:
Organic Gases Butane is an organic compound with the formula C4H10 that is an alkane with four carbon atoms. Butane is a gas at room temperature and atmospheric pressure. The term may refer to either of two structural isomers, n-butane or isobutane (or "methylpropane"), or to a mixture of these isomers. In the IUPAC nomenclature, however, "butane" refers only to the n-butane isomer (which is the isomer with the unbranched structure). Butanes are highly flammable, colorless, easily liquefied gases. The name butane comes from the roots but- (from butyric acid) and -ane.
N-BUTANE is a colorless gas with a faint petroleum-like odor. For transportation N-BUTANE may be stenched
N-BUTANE is shipped as a liquefied gas under its vapor pressure. Contact with the liquid can cause frostbite.
N-BUTANE is easily ignited. Its vapors are heavier than air. Any leak can be either liquid or vapor. Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket.
N-BUTANE is used as a fuel, an aerosol propellant, in cigarette lighters, and to make other chemicals.
Specifications:
1. Physical properties
| PHYSICAL AND CHEMICAL PROPERTIES | |||
| Appearance | colorless gas | Physical State | gas |
| Odor | unpleasant odor | Color | colorless |
| Odor Threshold | 6.16 ppm | pH | Not available |
| Melting Point | -138 °C (-216 °F ) | Boiling Point | -1 °C (30 °F ) |
| Freezing point | Not available | Evaporation Rate | Not available |
| Boiling Point Range | Not available | Flammability (solid, gas) | Not available |
| Autoignition | 287 °C (549 °F ) | Flash Point | -60 °C Closed Cup (-76 °F ) |
| Lower Explosive Limit | 1.9 % | Decomposition temperature | Not available |
| Upper Explosive Limit | 8.5 % | Vapor Pressure | 557 mmHg at 20 °C |
| Vapor Density (air=1) | 2.1 | Specific Gravity (water=1) | 0.5788 at 0 °C |
| Water Solubility | 15 % | Partition coefficient: noctanol/water | Not available |
| Viscosity | Not available | Solubility (Other) | Not available |
|
Bioconcentration Factor (BCF) |
0.74 | Density | Not available |
| Henry's Law Constant | 0.0007938 atmm3/mole | KOC | 900 (Estimate ) |
2. Safety Data Sheet
| Material Name: N-BUTANE SDS ID: MAT15370 | |||
| Log KOW | 2.89 | Physical Form | gas |
| Molecular Formula | C-H3-(C-H2)2-C-H3 | Molecular Weight | 58.12 |
3. Component Exposure Limits
| Butane | 106-97-8 |
| ACGIH: | 1000 ppm STEL |
| NIOSH: | 800 ppm TWA ; 1900 mg/m3 TWA |
| Mexico: | 800 ppm TWA LMPE-PPT ; 1900 mg/m3 TWA LMPE-PPT |
Applications:
