Technical Data Sheet (TDS) · Refrigerant technical reference document
Data version: 2026.09.22 | Generated on: 2026-09-28
Identification
Chemical name
n-Butane
Common designations
R600
GWP
4
ODP
0
Safety class
A3
Family
HC
Regulatory tier
Hydrocarbon (natural refrigerant)
Basic physical properties
Molecular weight (g/mol)
58.122
Triple point temp. (°C)
-138.255
Critical temp. (°C)
151.975
Critical pressure (MPa, abs)
3.7933
Critical density (g/cm³)
0.2280
Acentric factor
0.2008
Liquid relative density (20/4°C)
0.5786
Vapor relative density (air=1)
2.006
Quality standard
Indicator
Limit
Water
≤10 ppm
Acidity (as HCl)
≤1 ppm (as HCl)
Non-condensable gas
≤1.5 % (v/v, @25°C)
High-boiling residue
≤0.01 %
Particulates (visually clean)
visually clean
Chloride test
pass
Other volatile impurities
≤0.5 %
Per AHRI 700 uniform purity requirements (applies to all refrigerants and blends).
Applications
Used in domestic/commercial refrigeration and chillers; also as blowing agent, aerosol propellant and process refrigerant.
Safety & storage
Highly flammable gas! Store cool and ventilated, strictly away from ignition sources, sparks and heat; use explosion-proof electricals, prevent static discharge and spark from metal impact; cylinders upright and secured.
Supplier
Supplier
Wulachem
Contact
sales@wulachem.cn
Disclaimer
The values and limits in this Technical Data Sheet are taken from this site’s refrigerant property database (based on CoolProp reference data and relevant quality standards) and are provided for product selection and technical reference only. Before charging, storage and system integration, always verify against the latest official Safety Data Sheet (SDS) and the manufacturer’s technical documentation, and strictly follow applicable regulations and equipment manufacturer requirements. This site accepts no liability for any decisions or consequences based on this document.