7446-09-5 Sulfur dioxide

Name: Sulfur dioxide
Synonyms: Sulfursuperoxide (6CI); E 220; Fermenticide liquid; Sulfur dioxide (SO2); Sulfuroxide; Sulfur oxide (SO2); Sulfurous acid anhydride; Sulfurous anhydride;Sulfurous oxide; Sulphur dioxide
CAS Number:7446-09-5
Molecular Formula:O2S
Molecular Weight:64.06
EINECS:231-195-2
Density:1.25 g/mL at 25 °C(lit.)
Boiling Point:-10 ºC
Flash Point:°C
Safety Description:A poison gas. Experimental reproductive effects. Human mutation data reported. Human systemic effects by inhalation: pulmonary vascular resistance, respiratory depression, and other pulmonary changes. Questionable carcinogen with experimental tumorigenic and teratogenic data. It chiefly affects the upper respiratory tract and the bronchi. It may cause edema of the lungs or glottis, and can produce respiratory paralysis. A corrosive irritant to eyes, skin, and mucous membranes. This material is so irritating that it provides its own warning of toxic concentration. Levels of 400–500 ppm are immediately dangerous to life. Its toxicity is comparable to that of hydrogen chloride. However, less than fatal concentration can be borne for fair periods of time with no apparent permanent damage. It is a common air contaminant.

A nonflammable gas. It reacts violently with acrolein, Al, CsHC₂, Cs₂O, chlorates, ClF₃, Cr, FeO, F₂, Mn, KHC₂, KClO₃, Rb₂C₂, Na, Na₂C₂, SnO, diaminolithiumacetylene carbide. Will react with water or steam to produce toxic and corrosive fumes. Incompatible with halogens or interhalogens, lithium nitrate, metal acetylides, metal oxides, metals, polymeric tubing, potassium chlorate, sodium hydride.

Analytical Methods:

   

For occupational chemical analysis use OSHA: #ID-107 or NIOSH: Sulfur Dioxide, 6004.
liansport Information:UN 1079