N-Butane

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.