This gas not available for purchase online.
Formula: C4H10 or R600A

Isobutane is a colorless, flammable, liquefied gas.

Grade 2 Grade 2.5 Grade 3 Grade 3.5 Grade 4 Grade 4.5
Purity 99.0% 99.5% 99.9% 99.95% 99.99% 99.995%
Nitrogen < 800 ppmv < 400 ppmv < 160 ppmv < 20 ppmv < 20 ppmv < 10 ppmv
Oxygen < 200 ppmv < 100 ppmv < 40 ppmv < 5 ppmv < 5 ppmv < 2 ppmv
Other Hydrocarbons < 9000 ppmv < 4900 ppmv < 1000 ppmv < 500 ppmv < 90 ppmv < 45 ppmv
Sulfur < 1 ppmv < 1 ppmv < 1 ppmv < 1 ppmv < 1 ppmv < 1 ppmv
Moisture  < 10 ppmv < 5 ppmv < 4 ppmv < 3 ppmv < 2 ppmv < 2 ppmv
Total Impurities < 1% < 5000 ppmv < 1000 ppmv < 500 ppmv < 100 ppmv < 50 ppmv

 

**Moisture level guaranteed only when Electronic Fluorocarbons prepares the cylinders.
All concentrations are on a mol/mol basis unless otherwise stated.
This product is analyzed liquid phase.

Chemical & Physical Properties
Molecular Weight 58.124
Specific Volume 6.50 cf/lb
Pressure @ 70° F 31 psig
Flammability Limits 1.8-8.4% in Air
Valve Outlet CGA 510
LB CGA 170

 

Shipping Information
DOT Name Isobutane
Hazard Class 2.1
DOT No. UN 1969
DOT Label Flammable Gas
CAS No. 75-28-5

 

Cylinder Size Fill Weight (lbs)
1/2 ton 490
LP30 117
LP15 60
LP05 23
LP01 6
49L/Size 300 50
44L/Size 200 45
16L/Size 80 16
7L/Size 35 7