Isobutylene
Isobutylene
Formula: C4H8
CAS No: 115-11-7
Isobutylene (C4H8) is a highly reactive, colorless gas used as a chemical building block in the production of fuel additives, polymers, and specialty chemicals. Its versatility and reactivity make it valuable across automotive, industrial, and consumer product markets.
Applications include:
-
Alkylation with butane to produce isooctane, a high-octane gasoline component.
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Dimerization to diisobutylene (DIB), followed by hydrogenation to produce isooctane fuel additives.
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Polymerization to polyisobutylene (PIB) and butyl rubber for automotive tires, lubricants, adhesives, sealants, and coatings.
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Production of methacrolein for specialty chemical synthesis.
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Manufacture of antioxidants, fragrances, and odorants for natural gas.
EFC Gases & Advanced Materials supplies isobutylene with commercial grade purity, backed by the accuracy and precision of our analytical techniques.
Applications
Specifications
Further Specifications
Cylinder Sizes
- Produce isooctane for fuel additives.
- Polymerize to butyl rubber for tires.
- Synthesize methacrolein and specialty chemicals.
- Formulate lubricants, adhesives, sealants, and coatings.
- Manufacture antioxidants, fragrances, and odorants.
| Grade 2.0 | Grade 2.5 | |
|---|---|---|
| Purity | 99% | 99.5% |
| Other Hydrocarbons | < 4500 ppmv | |
| H2O | < 3 ppmv | |
| Sulfur | < 1 ppmv |
| Chemical & Physical Properties | |
|---|---|
| Molecular Weight | 53.1063 |
| Specific Volume | 6.90 cu. ft/lb |
| Flammability Limits in Air | 1.8-9.6% |
| Pressure @ 70° F | 24 psig |
| Valve Outlet | CGA 510 |
| Shipping Information | |
|---|---|
| DOT Name | Isobutylene |
| Hazard Class | 2.1 |
| DOT No. | UN 1055 |
| DOT Label | Flammable Gas |
| CAS No. | 115-11-7 |
| Cylinder Size | Fill Weight (lb) |
|---|---|
| LP30 | 120 |
| LP05 | 24 |
Moisture level guaranteed only when EFC Gases & Advanced Materials prepares the cylinders.
All concentrations are on a mol/mol basis unless otherwise stated. Product sold on the basis of total impurities. Individual impurities may vary slightly.
