Page 59 - Praxair - Specialty Gases and Equipment Solutions

i-C 4H 10
Isobutane

Transportation (M)SDS Reference
Information P-4613
UN Number: 1969 CAS Number
United States of America Canada Mexico
Shipping Name Isobutane Isobutane Isobutane 75 - 28 - 5
Hazard Class 2.1 2.1 2.1 General Description
Label Flammable Gas Flammable Gas Flammable Gas Colorless, flammable, liquefied gas
with a slight odor.

Product/Grade Purity Part Cylinder H 2 O N 2 O 2 Other Sulfur
Number THC
Research, 4.0 99.99 wt% IS 4.0RS FX/FXS, 3 20 5 90 wt 1 wt
(liquid phase) LP5
Instrument, 2.5 99.5 wt% IS 2.5IS HT, FX/FXS, 5 400 100 0.49% 1 wt
(liquid phase) LP5
Chemically Pure (CP), 99.0 wt% IS 2.0 HT, FX/FXS 10 800 200 0.9% 1 wt
2.0 (liquid phase) LP5
Concentrations given are ppm by volume unless otherwise specified.
Maximum ppm unless otherwise noted.

Cylinders

Cylinder Style Size Connection Pressure Volume Gross Weight
Type in (cm) CGA/DISS psig (bar) lb (kg) lb (kg)
HT Low Pressure Steel 55 x 29.8 (139.7 x 75.6) 510 31 (2.14) 490 (222.7) 805 (365.9)
FX/FXS Low Pressure Steel 45 x 15 (114.3 x 38.1) 510/555 31 (2.14) 116 (52.6) 191 (87)
LP5 Low Pressure Steel 17.6 x 12 (44.85 x 30.48) 510 31 (2.14) 23 (10.4) 41 (18.6)

Section B – Pure Gases
Equipment Recommendations
Research, 4.0 3000 series regulators
Instrument, 2.5 2000 series regulators
Chemically Pure 2000 series regulators
(CP), 2.0

i

See Section D for additional
information on Praxair products for
the Hydrocarbon Processing Industry
(pages D•175 - D•184).
See Sections F and G
for safety and technical
information.
2002 Series – High Purity
Economical Regulator
(see page E •257)

B•58 1-877-PRAXAIR www.praxairdirect.com