Page 184 - Praxair - Specialty Gases and Equipment Reference Guide

Hydrocarbon Processing

Petrochemical

Pure Organic Products Technical Support
The Pure Gases section (see pages B•21 to B•88), includes a wide range of pure A highly trained team of field sales
organic products. Praxair’s extensive supplier network provides access to a representatives, technical support
wide range of raw materials. These raw materials often have more stringent personnel and production chemists
specifications than other commercially available materials. In-house proprietary provides the guidance and support
purification is also used in cases where higher specifications are required. needed to resolve regulatory,
technical and safety issues.

High Purity Organics
i
Chemical Grade Quality Page
Number For technical support,
1, 3 Butadiene 2.5 99.5% B •30 call the North America
n-Butane 3.0 99.9% B •31 Technical Support Center
Ethylene 5.0 99.999% B •42 at 1-877-PRAXAIR
Isobutane 4.0 99.99% B •58
Isobutylene 3.0 99.9% B •59
Methane 5.0 99.999% B •61
Propane 4.0 99.99% B •72 Liquid Containers
Propylene 2.8 99.8% B •73 Praxair offers liquid mixtures in
aluminum cylinders (4L, 2L, 1L,
500ml, 250ml). These containers are
effective in maintaining the integrity
Petrochemical Mixtures
Praxair provides a wide range of mixtures for both process control and product of complex matrices over extended
periods. We continually look for new
quality QA/QC. The products meet ASTM 2163 and/or GPA standard 2140.
packaging techniques to enhance our
hydrocarbon products. Please call us
with your special packaging requests.
LPG Reference Standards
Component Propane Isopentane n-Pentane Propylene Propane/ Butane
Propylene
1-3, Butadiene 3.0% – – 20 ppm – –
2,2-Dimethylbutane – – 2.0% – – –
2,3-Dimethylbutane – – 1.0% – – –
Benzene – – 1.0% – – –
n-Butane 3.0% 4.0% – 40 ppm 0.1-1% 30-64%
cis-2-Butene 3.0% 0.1% – 50 ppm – –
trans-2-Butene 3.0% 0.1% – 30 ppm – –
Carbon Monoxide – – – – – –
Cyclohexane – – 2.0% – – –
Cyclopentane – – 2.0% – – –
Ethane 3.0% – – – 0.1-4% 0-2%
Ethylene 3.0% – – – – –
®
n-Hexane – – 2.0% – – – Welker Piston Cylinders
Isobutane 5.0% 0.6% – 60 ppm 1-3% 15-25% Available in 250cc – 1000cc these
Isobutylene – – – 40 ppm 1-3% 0-6% highly specialized containers which
Isopentane – 95.0% (Bal) 5.0% – 0-1% 0-2% have working pressures of 2000 psi.
Isoprene – 0.2% – – – –
Methane 1.0% – – – – –
Methyl Cyclopentane – – 1.0% – – –
2-Methylpentane – – 2.0% – – –
3-Methylpentane 1.0% – 1.0% – – –
n-Pentane 5.0% – 81.0% (Bal) – – –
Propane 70.0% (Bal) – – – 4-94% 3-45%
Propylene – – – 99.97% (Bal) 4-95% 0-6% Processing Hydrocarbon

1-877-PRAXAIR www.praxairdirect.com D•183