Page 53 - Praxair - Specialty Gases and Equipment Solutions

Halocarbon-C318

(Octafluorocyclobutane) C 4F 8

Transportation (M)SDS Reference
Information P-4671
UN Number: 1976 CAS Number
United States of America Canada Mexico
Shipping Name Octafluoro- Octafluoro- Octafluoro- 115 - 25 - 3
cyclobutane cyclobutane cyclobutane General Description
Hazard Class 2.2 2.2 2.2 Colorless, nonflammable, liquefied gas.
Label Nonflammable Nonflammable Nonflammable
Gas Gas Gas

Product/Grade Purity Part Number Cylinder N 2 O 2 H 2 O Other Acidity
Halocarbons (HF)
Semiconductor, 5.0 99.999% HA C3185.0SP K, G, HT 3 1 1 ppm/wt 4 0.1 ppm/wt
Semiconductor, 4.5 99.995% HA C3184.5SP K, G, HT 18 4 10 20 0.1 ppm/wt
Semiconductor, 3.8 99.98% HA C3183.8SP K, G, HT 80 20 50 50 0.3 ppm/wt
Semiconductor, 3.0 99.9% HA C3183.0SP K, G, HT 240 60 10 1000 –
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)
K High Pressure Steel 51 x 9 (129.5 x 22.9) 660/716 25.1 (1.70) 100 (45) 233 (106)
G High Pressure Steel 31 x 7 (78.7 x 17.8) 660/716 25.1 (1.70) 10 (4.5) 39 (18)
HT Low Pressure Steel 55 x 29.8 (139.7 x 75.6) 660 25.1 (1.70) 1200 (545.5) 1515 (688.6)

Section B – Pure Gases
Equipment Recommendations
Semiconductor, 5.0 Valve panels, 4000 and 3000 series regulators
Semiconductor, 4.5 Valve panels, 4000 and 3000 series regulators
Semiconductor, 3.8 Valve panels, 4000 and 3000 series regulators
Semiconductor, 3.0 Valve panels, 4000 and 3000 series regulators

i

See Section D for additional information
on Praxair’s Semiconductor product
line (pages D•143 - D•148).
See Section E for our full line
of gas handling equipment and
delivery systems.
3002 Series – High Purity Regulators for
Non-Corrosive Service (see page E •251)

B•52 1-877-PRAXAIR www.praxairdirect.com