high purity feedstocks (99.5+%) used for many fine synthesis
reactions. Trace impurities such as Hydrogen, Carbon Monoxide,
Carbon Dioxide, Oxygen, Water, Acetylene, light hydrocarbons,
sulfur gases & oxygenates (i.e. alcohols, aldehydes, ketones,
esters) are important to monitor.
||Propane-Propylene grades: Commercial
(i.e. residential fuel) grade liquid propane (LP) is predominantly
propane &/or propylene.
HD-5 Grade (special duty engine fuel) has a more tightly defined
composition that is 90+% propane, 2 - 5% propylene & lower
amounts of other C2-C5 alkane/alkene hydrocarbons. Ethyl mercaptan
or thiophene (tetrahydrothiophene) are typical LP odorant additives.
||Butane-Propane (B-P) mixtures: Commercial grade liquid B-P
mixtures are predominately used as fuels in climates & applications
that do not experience low ambient temperatures.
||Butane-Butylene grades: Commercial grade liquid butane is predominantly
butane &/or butylene mixtures that are used as fuels in industrial
applications or as residential fuels in warm climate regions.