Page 32 - Praxair - Specialty Gases and Equipment Reference Guide

C 4H 10
n-Butane

Transportation (M)SDS Reference
Information P-4572
UN Number: 1011 CAS Number
United States of America Canada Mexico
Shipping Name Butane Butane Butane 106 - 97 - 8
Hazard Class 2.1 2.1 2.1 General Description
Label Flammable Gas Flammable Gas Flammable Gas Colorless, flammable, liquefied gas.

Product/Grade Purity Part Cylinder O 2 N 2 H 2 O THC Sulfur
Number
Research, 4.0 99.99 wt% BU 4.0RS FX/FXS, 5 20 3 90 ppm/wt 1 ppm/wt
(1)
(liquid phase) LP5
Instrument, 2.5 99.5% wt% BU 2.5IS HT, FX/FXS, – – 5 0.45 wt% 1 ppm/wt
(1)
(liquid phase) LP5
Chemically Pure (CP), 2.0 99.0% wt% BU 2.0 HT, FX/FXS, – – 10 0.9 wt% 2 ppm/wt
(1)
(liquid phase) LP5
Concentrations given are ppm by volume unless otherwise specified.
Maximum ppm unless otherwise noted.
(1) FXS cylinders include eductor tube.

Cylinders

Cylinder Style Size Connection Pressure Volume Gross Weight
Type in (cm) CGA psig (bar) lb (kg) lb (kg) Section B – Pure Gases
HT Low Pressure Steel 55 x 29.8 (139.7 x 75.6) 510 16.3 (1.12) 500 (227.27) 815 (370.45)
FX/FXS Low Pressure Steel 45 x 15 (114.3 x 38.1) 510, 555 16.3 (1.12) 120 (54.4) 215 (98)
LP5 Low Pressure Steel 17.7 x 12 (44.8 x 30.5) 510 16.3 (1.12) 24 (10.9) 42 (19)

Equipment Recommendations
Research, 4.0 4000 series non-corrosive regulator
Instrument, 2.5 3000 series non-corrosive regulator
Chemically Pure (CP), 2.0 2000 series non-corrosive regulator

i

See Section D for additional
information on Praxair products
for the Hydrocabon 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)

1-877-PRAXAIR www.praxairdirect.com B•31