Oxygen

Oxygen is the most abundant element on the earth’s surface and as a gas is indispensable in respiration. Composing almost 21% of the atmosphere, oxygen is a colorless, odorless and tasteless gas which
supports combustion. As a liquid at -297ºF, oxygen is light blue in color and is approximately 14% heavier than water.

Liquid oxygen is classified as a Type II by the Compressed Gas Association (CGA). CGA Pamphlet G-4.3, Type II, Grade B and the United States Pharmacopia (USP) specs are considered standards for commercial
liquid oxygen.


Oxygen

(Units in ppm (v/v) unless show otherwise)

Oxygen Chart

Oxygen is also available in high purity VLSI grade and ultra high purity ELSI grade (99.9999) liquid oxygen for customer requiring stringent purity standards.

Keen guarantees commercial grade product delivered as a liquid meets the commercial CGA specification listed. Keen does not normally guarantee commercial grade product delivered as a compressed gas meets
the gaseous specification listed because gas purities are affected by normal cylinder filling practices and process procedures which may compromise the integrity of the product.



Oxygen Conversion Data



Oxygen


Weight

Gas

Liquid

Pounds


Kilograms


Cubic Feet

Cubic Meters

Gallons

Liters

Lb

Kg

SCF

Nm

Gal

L

1 Pound
1
0.4536
12.078
0.3173
0.105
0.3975

1 Kilogram
2.205
1
26.632
0.6996
0.2315
0.8762

1 Ton
2000
907.2
24157
635
209.9
794.5

1 SCF Gas
0.08279
0.03755
1
0.026269
0.008689
0.03289

1 Nm Gas
3.1491
1.4282
38.04
1
33.05
1.2511

1 Gal Liquid
9.528
4.321
115.1
3.026
1
3.785

1 L Liquid
2.517
1.1416
30.41
0.7995
0.2642
1

SCF (standard cubic foot) and SM3 (standard cubic meter) gas measured at 1 atmosphere and 70ºF.

Liquid measured at 0ºF and saturated pressure.

Nm3 (normal cubic meter) gas measured at 1 atmosphere and 0ºC.

All values round to the nearest 4/5 significant numbers.