Specification
Purity,% 99.5 99.95 99.99
Oxygen ≤ 10 ppm ≤ 10 ppm ≤ 5 ppm
Nitrogen
≤ 40 ppm ≤ 20 ppm
Ethane ≤ 100 ppm
Isobutane ≤ 0.3%
Propane ≤ 400 ppm
Neopentane ≤ 0.1%
Isopentane ≤ 0.1%
Other hydrocarbons
≤ 500 ppm ≤ 90 ppm
Moisture ≤ 5 ppm ≤ 3 ppm ≤ 3 ppm
Sulfur ≤ 0.5 ppm ≤ 1 ppm ≤ 1 ppm
transportation
DOT shipping name n-butane
DOT classification 2.1
DOT label combustible gas
UN NO. UN 1011
CAS No. 106-97-8
CGA/JIS/BS341/DIN477 510/W22-14L/NO.9/NO.1
Transportation status Liquefied gas
describe
Cylinder condition @ 21.1°C liquid
Combustion limit in air 1.8-8.4%
Natural temperature (°C) 405
Molecular weight (g/mol) 58.124
Specific gravity (air =1) 2.007
Critical temperature (°C) 152.03
Critical temperature (psig) 536.01
Application
1. The raw materials used to prepare the standard gas of the environmental monitoring system.
2. As a propellant.
3. As a solvent.