1,3,5-Trioxane

"Trioxin" redirects here. For the fictitious chemical, see Return of the Living Dead (film series).
1,3,5-Trioxane
Trioxane molecule
Names
IUPAC name
1,3,5-Trioxane
Other names
s-Trioxane; 1,3,5-Trioxacyclohexane; Trioxymethylene; Metaformaldehyde; Trioxin
Identifiers
110-88-3 Yes
ChEBI CHEBI:38043 Yes
ChemSpider 7790 Yes
Jmol-3D images Image
RTECS number YK0350000
UNII 46BNU65YNY Yes
Properties
Molecular formula
 C3H6O3
Molar mass 90.08 g·mol−1
Appearance White crystalline solid
Density 1.17 g/cm³ (65 °C)[1]
Melting point 62 °C (144 °F; 335 K)[1]
Boiling point 115 °C (239 °F; 388 K)[1]
221 g/L[1]
Hazards
R-phrases R22
S-phrases S24/25
NFPA 704
Flammability code 2: Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur. Flash point between 38 and 93 °C (100 and 200 °F). E.g., diesel fuel Health code 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g., chloroform Reactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogen Special hazards (white): no codeNFPA 704 four-colored diamond
2
2
0
Flash point 45 °C (113 °F)[1]
Related compounds
Related compounds
 Formaldehyde

1,2,4-Trioxane Polyoxymethylene

Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

1,3,5-Trioxane, sometimes also called trioxane or trioxin, is a chemical compound with molecular formula C3H6O3. It is a white solid with a chloroform-like odor. It is a stable cyclic trimer of formaldehyde, and one of the three trioxane isomers; its molecular backbone consists of a six-membered ring with three carbon atoms alternating with three oxygen atoms. Thus, cyclotrimerization of formaldehyde affords 1,3,5-trioxane:

The mechanism can be explained in an acidic catalyzed reaction:

Uses

In chemistry, 1,3,5-trioxane is used as a stable, easily handled source of anhydrous formaldehyde. In acidic solutions, it decomposes to generate three molecules of formaldehyde. It may also be used in polymerization to form acetal resins, such as polyoxymethylene plastic. It is a feedstock for certain types of plastic, is an ingredient in some solid fuel tablet formulas, and is used in chemical laboratories as a stable source of formaldehyde.

Trioxane is combined with hexamine and compressed into solid bars to make hexamine fuel tablets, used by the military and outdoorsmen as a cooking fuel.

1,3,5-Trioxane is a mortician's restorative chemical that maintains the corpse's contours after postmortem tissue constriction.

See also

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 Record in the GESTIS Substance Database of the IFA