Page 70 - Praxair - Specialty Gases and Equipment Reference Guide

N 2O
Nitrous Oxide

Transportation (M)SDS Reference
Information P-4636
UN Number: 1070 CAS Number
United States of America Canada Mexico
Shipping Name Nitrous Oxide Nitrous Oxide Nitrous Oxide 10024 - 97 - 2
Hazard Class 2.2 (5.1) 2.2 (5.1) 2.2 General Description
Label Nonflammable Nonflammable Nonflammable Colorless, odorless, liquefied gas with
Gas, Oxidizer Gas, Oxidizer Gas, Oxidizer a slightly sweetish taste and odor.

Product/ Purity Part Cylinder O 2 H 2 O N 2 THC CO 2 CO NH 3 NO 2 NO
Grade Number
Semiconductor, 99.9995% NS 5.5SP K, AS 0.5 1 3 0.1 0.5 0.1 0.1 0.1 0.1
5.5
Semiconductor, 99.998% NS 4.8SP K, AS 2 3 8 1 2 1 1 1 1
4.8
High Purity, 4.0 99.99% NS 4.0 K 5 3 25 1 10 10 – – –
Atomic 99.5% NS 2.5AA K – – – – – – – – –
Absorption, 2.5
Concentrations given are ppm by volume unless otherwise specified.
Maximum ppm unless otherwise noted.

Cylinders
Cylinder Style Size Connection Pressure Volume Gross Weight Section B – Pure Gases
Type in (cm) CGA psig (bar) lb (kg) lb (kg)
K High Pressure Steel 51 x 9 (129.5 x 22.9) 326/712 745 (51.36) 64 (29) 175 (80)
AS High Pressure Aluminum 48 x 8 (121.9 x 20.3) 326/712 745 (51.36) 39 (17.7) 87 (39.4)

Equipment Recommendations
Semiconductor, 5.5 Valve panels and 4000 series regulators
Semiconductor, 4.8 Valve panels and 4000 series regulators
High Purity, 4.0 3000 series regulators
Atomic 3000 series regulators
Absorption, 2.5

i

See Section D, Medical Gases for
Nitrous Oxide – U.S.P. Grade
(page D•232).
See Sections F and G
for safety and technical
information.
4012 Series – Critical Purity Regulator
for Corrosive Service (see page E •244)

1-877-PRAXAIR www.praxairdirect.com B•69