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Isobutane – Instrument Grade – 99.5% – 100# Cylinder


Please select matching quantities of DOT LPG Cylinders when requesting order, otherwise we cannot process.


  • Instrument Grade 99.5% pure isobutane
  • Boiling point: 10.4°F (-12°C)
  • Melting point: -255.3 °F (-159.6 °C)
  • Vapor pressure: 29 psig at 70°F (21.1°C)
  • Molecular formula: C4-H10
  • CAS Number: 75-28-5
  • Fitted with CGA 555 valve for liquid-to-liquid applications.

Note, this product ships to commercial addresses only. 

SKU: 29011000 Category:


The Isobutane is free of any sulfur-based mercaptan odorants, colorless, and clean, tested for C1 to C5 carbon compounds.

Options Guide

  • Supply cylinder (Customer supplies own cylinder, contact us for shipping instructions after submitting order request, we will refund once we receive cylinders upon inspection and suitability for use.)
  • Purchase cylinder (Customer buys and owns the cylinder, this results in a one time fee. Discounts apply for greater volume shipments.)
  • Rent cylinder SafeLeaf charges deposit for DOT LPG cylinder, which will be refunded upon return.  The minimum rental period is seven (7) days, and includes the day the cylinder leaves our facilities through 4:00 p.m. EST the next day.  The rental cost of a carbon steel cylinder is calculated as follows:
    • 100# Cylinder for $3.00 per day
    • 510# Cylinder for $5.00 per day

Treatment Program

  • Cleaning of the cylinder per each new purchase.
  • Re-painting of the cylinder as needed.
  • Carbon steel cylinder preparation with inspection of valve, and filling.

Additional information

Weight 116 lbs
Dimensions 15 × 15 × 49 in
Safe Gas Treatment Program

"Safe Gas" Treated, Non-treated

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