Gas Detection
SEMA Gases
Iso-Butylene (I-C4H8) Calibration Gas
Isobutylene (or 2-methylpropene) is a hydrocarbon of industrial significance. It is a four-carbon branched alkene (olefin), one of the four isomers of butylene.
| Available sizes | 34L, 58L, 110L |
|---|---|
| Certification tolerance | +/- 10% or +/- 2% |
| Certification tolerance | +/- 20% or +/- 10% or +/- 5% |
| Stability | 60 months |
Isobutylene (or 2-methylpropene) is a hydrocarbon of industrial significance. It is a four-carbon branched alkene (olefin), one of the four isomers of butylene. At standard temperature and pressure it is a colourless flammable gas. Isobutylene is used as an intermediate in the production of a variety of products. It is reacted with methanol and ethanol in the manufacture of the gasoline oxygenates methyl tert-butyl ether (MTBE) and ethyl tert-butyl ether (ETBE), respectively.
| 34L | 58L | 110L | Cert. tol. | Prod. tol. | Stability (months) |
|
|---|---|---|---|---|---|---|
| 8 ppm Iso-Butylene // Air | Available | Available | Available | +/- 10% | +/- 20% | 60 |
| 10 ppm Iso-Butylene // Air | Available | Available | Available | +/- 10% | +/- 20% | 60 |
| 100 ppm Iso-Butylene // Air | Available | Available | Available | +/- 2% | +/- 10% | 60 |
| 1000 ppm Iso-Butylene // Air | Available | Available | Available | +/- 2% | +/- 5% | 60 |
| SEMA Gases leaflet | SEMA Gases leaflet_A4 |
|---|
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