Safety data for 1,3-dioxane
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Toxicity data
Risk phrases
Safety phrases
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This information was last updated on March 30, 2005.
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for it. General
Synonyms: m-dioxane, m-dioxan, trimethylene glycol methylene ether,
trimethylene methylene dioxide, 1,3-dioxacyclohexane, 1,3-propanediol formal
Use:
Molecular formula: C4H8O2
CAS No: 505-22-6
EINECS No:
Physical data
Appearance: colourless liquid
Melting point: -42 C
Boiling point: 103 C
Vapour density:
Vapour pressure:
Density (g cm-3): 1.03
Flash point: 2 C
Explosion limits:
Autoignition temperature:
Water solubility: considerable
Stability
Stable. Flammable. Incompatible with oxidizing agents.
May form explosive peroxides in contact with the air - store under inert gas.
Toxicology
May be harmful or act as an irritant.
(The meaning of any toxicological abbreviations which
appear in this section is given
here.)
(The meaning of any risk phrases which appear in this section is
given
here.)
R19.
Transport information
(The meaning of any UN hazard codes which appear in this section
is given
here.)
UN No 1165. Packing group II. Hazard class 3.
Personal protection
Because of the possibility of the formation of peroxides in
storage, this material should be peroxide-tested before use,
especially if it is to be distilled (since distillation
tends to concentrate the potentially explosive peroxides and
the heating makes their rapid decomposition far more likely).
Safety glasses, adequate ventilation.
(The meaning of any safety phrases which appear in this section
is given here.)