Page 48 - Praxair - Specialty Gases and Equipment Reference Guide

Halocarbon-32

(Difluoromethane) CH 2F 2

Transportation M(SDS) Reference
Information P-6205-B
UN Number: 3252 CAS Number
United States of America Canada Mexico
Shipping Name Difluoromethane Difluoromethane Difluoromethane 75 - 10 - 5
Hazard Class 2.1 2.1 2.1 General Description
Label Flammable Flammable Flammable Colorless, flammable gas with a
Gas Gas Gas slight ether-like odor.

Product/Grade Purity Part Cylinder N 2 O 2 CO 2 H 2 O Other Acidity
Number Halocarbons ppm/w
Semiconductor, 4.5 99.995% HA 324.5SP K, G 20 5 2 2 25 0.2
Semiconductor, 4.0 99.99% HA 324.0SP K, G 40 10 5 5 100 0.2
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) 350/724 215 (14.82) 65 (29.5) 185 (84)
G High Pressure Steel 20 x 6 (50.8 x 15.2) 350/724 215 (14.82) 9 (4.1) 38 (17)

Equipment Recommendations Section B – Pure Gases

Semiconductor, 4.5 Valve panels
Semiconductor, 4.0 7000 and 4000 series regulators

7002 Regulator
(see page E •278)

1-877-PRAXAIR www.praxairdirect.com B•47