Product Introduction
Isobutylene (CAS 115-11-7), also known as 2-Methylpropene, is a colorless, highly flammable liquefied petroleum gas with a faint coal-gas-like odor. It is a four-carbon branched alkene and serves as one of the most important chemical building blocks in the petrochemical industry. Its high reactivity makes it the essential monomer for producing synthetic rubbers and high-performance polymers. Beyond polymer science, it is a key feedstock for fuel additives and fine chemical intermediates used in antioxidants and fragrances.
Product Selling Points
1. Polymer-Grade Ultra-High Purity
-
Advantage: Our Isobutylene reaches an assay of ≥ 99.9% with strictly controlled moisture and sulfur content.
-
Benefit: Optimized Polymerization: Minimizes catalyst deactivation in the production of Polyisobutylene (PIB) and Butyl Rubber, resulting in higher molecular weight consistency and superior physical properties of the final rubber.
2. Versatile Petrochemical Feedstock
-
Advantage: Highly reactive branched structure allows for efficient alkylation and hydration reactions.
-
Benefit: Broad Industrial Utility: Whether you are producing MTBE for high-octane fuels or MMA for acrylic plastics, our product provides the high yield and stability required for large-scale industrial synthesis.
3. Reliable Large-Scale Logistics
-
Advantage: Shipped in specialized, high-pressure ISO tanks with rigorous safety monitoring.
-
Benefit: Stable Supply Chain: Ensures timely delivery for continuous manufacturing plants, reducing downtime and storage risks associated with high-pressure flammable gases.
Applications
Synthetic Rubber Production
The primary monomer for Butyl Rubber (IIR), used extensively in tire inner liners and pharmaceutical stoppers.
Polyisobutylene (PIB) Synthesis
Used to produce various grades of PIB for lubricants, adhesives, and sealants.
Fuel Additives
Reacted with methanol to produce MTBE (Methyl Tert-Butyl Ether) or ETBE, used as octane boosters in gasoline.
Fine Chemicals
An intermediate for producing Tert-Butylphenol (antioxidants), Methacrolein, and Methyl Methacrylate (MMA).
Packaging & Storage
-
Packaging: 12-ton or 20-ton ISO Tanks; High-pressure seamless steel gas cylinders.
-
Storage: Store in a cool, well-ventilated specialized warehouse for flammable gases. Crucial: Isobutylene is highly flammable and forms explosive mixtures with air. Keep away from heat, sparks, open flames, and oxidizing agents. Ground all equipment to prevent static discharge.
Synonyms
2-Methylpropene; Isobutene; 2-Methyl-1-propene; gamma-Butylene.
Matching Materials
-
Methanol (CAS 67-56-1) —— For MTBE production
-
Isoprene (CAS 78-79-5) —— Co-monomer for Butyl Rubber synthesis
-
Aluminum Chloride (AlCl3) —— Common catalyst for polymerization
-
ISO Tanks —— Specialized transport equipment
-
Antioxidant 1010/1076 —— Downstream products derived from isobutylene-based phenols
FAQ
Q: Where can I find the EINECS number for Isobutylene?
A: The EINECS number is 204-066-3, as listed in the physical properties table above.
Q: What is the purity level of your Isobutylene?
A: We provide Polymer Grade Isobutylene with a purity ≥ 99.9%, which is suitable for the most demanding catalytic polymerization processes.
Q: How is Isobutylene transported internationally?
A: Due to its nature as a liquefied flammable gas, it is primarily transported in ISO Tanks. These are pressure-vessel containers designed for safe international maritime and road transport.
Q: Is Isobutylene the same as Butene-1?
A: No, they are isomers. Isobutylene (2-Methylpropene) has a branched structure, while Butene-1 is a linear chain. Their chemical reactivities and downstream applications are significantly different.
