Isobutane(I-C4H10)
Specifications
- CAS No.: 75-28-5
- UN No.: 1969
- EINECS No.: 200-857-2
- Molecular Weight: 58.12 g/mol
- Appearance: Colorless
- Melting Point: -159.4 ℃
- Boiling Point: -11.73℃
- Density: 2.064kg/m³
- Hazard Class (DOT): 2.1 & 8
- Label: flammable Gas
High-purity isobutane (i-C₄H₁₀) gas supplied from China for refrigeration, aerosol propellant, and chemical synthesis.
High-purity isobutane (i-C₄H₁₀ ) for refrigerant blends, aerosol propellants, LPG fuel blending, and organic synthesis.
sobutane is a colorless, flammable gas at normal temperature and pressure. As a branched-chain alkane, it is slightly soluble in water but readily soluble in ethanol, ether, and most organic solvents. It forms explosive mixtures with air (explosion limit: 1.9%–8.4% by volume), with vapor heavier than air that can travel considerable distances at lower elevations. Isobutane occurs naturally in natural gas, refinery gas, and cracking gas, and is also produced by isomerization of n-butane. It serves as a key component in refrigerant blends, an aerosol propellant, a fuel gas component, and a chemical intermediate in organic synthesis, typically transported as a liquefied compressed gas.
Global Shipping & Export Compliance
Isobutane (UN 1969) is classified as a flammable compressed gas and must be handled under strict hazardous materials regulations.
- Sea freight (FCL / LCL) – standard export method
- Air freight – limited availability (regulatory controlled)
Required Export Documents
- Material Safety Data Sheet (MSDS)
- Certificate of Analysis (COA)
- Dangerous Goods Declaration (DGD)
- UN-certified cylinder documentation
- Commercial invoice & packing list
How to Order Isobutane Gas from China
- Send technical requirements (purity, cylinder specification, application)
- Receive quotation (EXW / FOB / CIF options)
- Confirm cylinder specification & compliance
- Review COA, MSDS, and certification documents
- Production, filling, and quality inspection
- Hazardous goods shipping arrangement
- Delivery and final inspection at destination
Common Mistakes When Buying Isobutane Gas
- Choosing suppliers only based on lowest price
- Ignoring cylinder certification and pressure rating
- Not verifying moisture and impurity levels
- Skipping third-party inspection before shipment
- Overlooking export documentation compliance
Packaging
| Cylinder Capacity | Valve | Weight |
|---|---|---|
| 47L | CGA350 | 20 kgs |
| 118L | YSF-2 | 45 kgs |
Industrial Grade Isobutane(I-C4H10) 99.9%
| Specification | ≥ 99.9% |
|---|---|
| Non-condensable gas | ≤ 0.5% |
| Moisture | ≤ 0.001% |
| Sulfur | ≤ 1.0 ppm |
Frequently Asked Questions
