Specification
Purity,% 99.99
Oxygen ≤ 50 ppmv
Nitrogen ≤ 200 ppmv
Sulfur trioxide ≤ 50 ppmv
Moisture ≤ 100 ppmv
Residue ≤ 0.04%
transportation
DOT shipping name sulfur dioxide, liquefied
DOT classification 2.3
DOT label poison gas
UN NO. UN 1079
CAS No. 7446-09-5
CGA/JIS/BS341/DIN477 660/W22-14R/NO.10/NO.7
Transportation status Liquefied gas
Technical Information
Cylinder condition @ 21.1°C liquid
The combustion limit in the air is not combustible
Natural temperature (°C)-
Molecular weight (g/mol) 64.063
Specific gravity (air =1) 2.249
Critical temperature (°C) 157.65
Critical temperature (psig) 1127.3
Application
1. As a component of the environmental monitoring system, it is used to equip the calibration gas.
2. In various chemical reactions.