Sulfur Dioxide – SO2

This page sulfur dioxide  – or sulfur anhydride – ( SO2 ), suitable detection tools –  SO2 detector  – and suitable respiratory protective equipment (gas mask or E gas filtered It provides information about the powered air purifying respirator).

Sulfur dioxide (SO2) properties

Sulfur dioxide ( SO2 ) - Moreover sulfur anhydride – also called – is present in many fields of activity, such as the pulp and paper industry, power plants, refrigeration industry and fossil energy combustion (coal and fuel). It is also used in wine growing practice (sulphiting). Although it can occur naturally near volcanoes, this gas is primarily anthropogenic (man-made).

  • CAS
  • 7446-09-5
  • TWA (8 hours)
  • 0,5 ppm
  • STEL (15 minutes)
  • 1 ppm
  • LEL
  • –
  • IP
  • 12,3 eV
  • DENSITY/AIR
  • 2.26
  • FILTER/SCBA
  • E

Health effects of sulfur dioxide

Sulfur dioxide ( SO2 ) is a colorless gas with a pungent odor that can cause respiratory system and eye irritation from 1 ppm! Caustic And damaging Even if it is, this gas is first of all is toxic . Classified as R23 (toxic if inhaled) and R34 (causes burns). Finally, sulfur dioxide is very reactive with many solvents (alcohol, toluene) and especially with water, producing sulfuric acid (H2SO4). SO2 is also responsible for acid rain.

SO2 detector – Sulfur dioxide

Despite its pungent and offensive odor, it is only a The SO2 detector can accurately measure concentrations of this highly toxic gas. A ppm or ppb sulfur dioxide detection It is recommended to use .
Sulfur dioxide calibration gas cylinders are available for calibration and gas testing of your fixed or portable gas detectors.

SO2 respiratory protection (Sulfur dioxide)

Since sulfur dioxide irritates the eyes, use it only for short interventions. with full face mask together one E filter or a full one for long operating periods PAPR It is recommended to use . If concentrations exceed 60 times the OEL, a self-contained breathing apparatus (SCBA) is required.