Page 79 - Praxair - Specialty Gases and Equipment Solutions

SF 6
Sulfur Hexafluoride

Transportation (M)SDS Reference
Information P-4657
UN Number: 1080 CAS Number
United States of America Canada Mexico
Shipping Name Sulfur Sulfur Sulfur 2551 - 62 - 4
Hexafluoride Hexafluoride Hexafluoride General Description
Hazard Class 2.2 2.2 2.2 Colorless, odorless, nonflammable
Label Nonflammable Nonflammable Nonflammable liquefied gas.
Gas Gas Gas

Product/Grade Purity Part Cylinder O 2 + N 2 H 2 O Acidity CF 4 CO CO 2 CH 4
Number (HF)
Semiconductor, 99.999% SH 5.0SP K, AS 6 2 0.3 5 0.5 0.5 0.1
5.0
Semiconductor, 99.995% SH 4.5SP K, AS 50 8 0.7 17 – – –
4.5
Dielectric , 99.9 wt% SH 3.0 K 500 8 0.3 500 – – –
(1)
3.0 ppm/w ppm/w ppm/w
Semiconductor, 99.8% SH 2.8SP K 1500 8 – 350 – – –
2.8
Concentrations given are ppm by volume unless otherwise specified.
Maximum ppm unless otherwise noted.
(1) Meets ASTM D2472 standard specification for Sulfur Hexafluoride.

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) 590/716 320 (22) 115 (52.2) 250 (114)
Section B – Pure Gases
AS High Pressure Aluminum 48 x 8 (121.9 x 20.3) 590/716 320 (22) 70 (38.1) 120 (55)

Equipment Recommendations

Semiconductor, 5.0 Valve panels and 4000 series regulators
Semiconductor, 4.5 Valve panels and 4000 series regulators
Dielectric, 3.0 2000 series regulators
Semiconductor, 4.5 3000 series regulators

i

Not for use in
pneumatic retinopexy.
See Sections F and G
2012 Series – High Purity Economical for safety and technical
Regulator for Non-Corrosive Service information.
(see page E •256)

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