Overview
Isobutene (2-methylpropylene, 2-methyl-1-propylene) is used as the main monomer in the synthesis of polyisobutylene rubber, butyl rubber, and isoprene. It is also widely used as medicine, pesticides, antioxidants, synthetic advanced lubricants, gasoline additives and raw materials for other fine chemical products.
Isobutene is a colorless and transparent gas at room temperature and can become a transparent liquid after being pressurized. Relative density 0.5879(25℃), boiling point-6.9℃, flash point-77℃. Insoluble in water, easily soluble in organic solvents, easy to polymerize, and easy to react with a variety of chemicals. Inflammable and explosive.
Isobutene is stored in pressurized gas cylinders. At 40 ° C, the pressure of the gas cylinders is greater than 0.98MPa and requires good tightness. Store it in a cool and ventilated warehouse, away from fire and heat sources, prevent direct sunlight, and store it separately from oxidants and oxygen.
CAS No.: 115-11-7
EINECS No.: 204-066-3
Molecular formula: C4H8
Molecular weight: 56.11
Melting point (℃):-140.3
Boiling point (℃):-6.9
Relative density (water =1): 0.67(-49℃)
Relative vapor density (air =1): 2.0
Saturated vapor pressure (kPa): 131.52(0℃)
Heat of combustion (kJ/mol): 2705.3
Critical temperature (℃): 144.8
Critical pressure (MPa): 3.99
Flash point (℃):-77
Ignition temperature (℃): 465
Upper explosion limit %(V/V): 8.8
Lower explosion limit %(V/V): 1.8
Solubility: Insoluble in water, easily soluble in most organic solvents.
Main purpose: Used to make synthetic rubber and organic chemical raw materials.
Isobutene is a colorless and transparent gas at room temperature and can become a transparent liquid after being pressurized. Relative density 0.5879(25℃), boiling point-6.9℃, flash point-77℃. Insoluble in water, easily soluble in organic solvents, easy to polymerize, and easy to react with a variety of chemicals. Inflammable and explosive.
Isobutene is stored in pressurized gas cylinders. At 40 ° C, the pressure of the gas cylinders is greater than 0.98MPa and requires good tightness. Store it in a cool and ventilated warehouse, away from fire and heat sources, prevent direct sunlight, and store it separately from oxidants and oxygen.
CAS No.: 115-11-7
EINECS No.: 204-066-3
Molecular formula: C4H8
Molecular weight: 56.11
Melting point (℃):-140.3
Boiling point (℃):-6.9
Relative density (water =1): 0.67(-49℃)
Relative vapor density (air =1): 2.0
Saturated vapor pressure (kPa): 131.52(0℃)
Heat of combustion (kJ/mol): 2705.3
Critical temperature (℃): 144.8
Critical pressure (MPa): 3.99
Flash point (℃):-77
Ignition temperature (℃): 465
Upper explosion limit %(V/V): 8.8
Lower explosion limit %(V/V): 1.8
Solubility: Insoluble in water, easily soluble in most organic solvents.
Main purpose: Used to make synthetic rubber and organic chemical raw materials.
Supply & Ordering
- Packaging
- cylinders / ton drums / ISO tanks / tankers (by grade and order size)
- Minimum order
- confirmed on enquiry; negotiable for bulk purchases
- Terms & lead time
- FOB / CIF / EXW and others confirmed on request
Please confirm the exact packaging, minimum order and lead time via the enquiry form below.
About WULA
WULA was founded in 2013. We are a refrigerant supply organizer, focused on moving goods from the production line to the customer's own line and site.
- Compliance paperwork
- We help customers meet compliance requirements: sales filing, per-transaction verification, quarterly reporting and three-year retention of documents.
- Order handling
- Scattered orders are managed through consolidated, data-driven administration to keep procurement efficient.
- Supply allocation
- Forecasting and coordinated allocation across multiple warehouses, to keep supply stable.
Need a quote or technical documents for 异丁烯?
Get current pricing, packaging options, MSDS and compliance files. Send us your requirement and our sales and technical team will get back to you shortly.
Bulk orders, custom packaging and other technical questions are all welcome.
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常见问题
isobutylene is a refrigerant/chemical product. It is widely used in refrigeration equipment such as refrigerators, freezers, water dispensers, automotive air conditioners, central air conditioning, dehumidifiers, cold storage and commercial refrigeration, as well as in aerosol propellants, blowing agents, fire-extinguishing and cleaning applications. See the product page for details.
isobutylene is used as a common working fluid in refrigeration, air-conditioning and industrial applications. When replacing or retrofitting a system, qualified personnel should perform the work, paying attention to system compatibility and lubricant matching, and following relevant safety standards.
Store in a cool, dry, well-ventilated warehouse away from fire, heat sources and direct sunlight. Cylinders should be placed upright and protected from falling. Transport according to regulations for high-pressure gases or hazardous chemicals, with careful handling to avoid damage to cylinders and valves.
Ensure adequate ventilation at the workplace. Avoid direct skin contact with liquid refrigerant (risk of frostbite). Keep away from open flames and high heat. Use dedicated tools and protective equipment. In case of leakage, evacuate, ventilate and contact professionals.
The exact Ozone Depletion Potential (ODP) and Global Warming Potential (GWP) are listed in the Physical Properties table on the product page. Select refrigerants considering energy efficiency, safety and environmental impact.
Multiple package sizes are available (e.g., cylinders, drum or ton packages - see product page). Bulk orders are supported. Contact sales for the latest quote and lead time.
