1,3,5-Trioxane

"Trioxin" redirects here. For the fictitious chemical, see Return of the Living Dead (film series).

1,3,5-Trioxane
IUPAC name 1,3,5-Trioxane
Other names s-Trioxane 1,3,5-Trioxacyclohexane Trioxymethylene Metaformaldehye Trioxin
Identifiers
CAS number	110-88-3 Y
ChemSpider	7790 Y
UNII	46BNU65YNY Y
ChEBI	CHEBI:38043 Y
RTECS number	YK0350000
Jmol-3D images	Image 1
SMILES O1COCOC1
InChI InChI=1S/C3H6O3/c1-4-2-6-3-5-1/h1-3H2 Y Key: BGJSXRVXTHVRSN-UHFFFAOYSA-N Y InChI=1/C3H6O3/c1-4-2-6-3-5-1/h1-3H2 Key: BGJSXRVXTHVRSN-UHFFFAOYAW
Properties
Molecular formula	C3H6O3
Molar mass	90.08 g/mol
Appearance	white crystalline solid
Density	1.17 g/cm³ (65 °C)
Melting point	64 °C
Boiling point	114.5 °C
Solubility in water	17.2 g/100 ml (18 °C)
Hazards
R-phrases	22
S-phrases	24/25
NFPA 704	2 2 0
Flash point	45 °C
Related compounds
Related compounds	Formaldehyde 1,2,4-Trioxane Polyoxymethylene
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

1,3,5-Trioxane, sometimes also called trioxin, is a chemical compound with molecular formula C₃H₆O₃. It is a stable cyclic trimer of formaldehyde, and one of the two trioxane isomers; its molecular backbone consists of a six membered ring with three carbon atoms alternating with three oxygen atoms.

1,3,5-Trioxane is a white solid with a chloroform-like odor. 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.

Uses

In chemistry, it 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.

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 repairs cells and maintains the corpse's contours after postmortem tissue constriction.^{[citation needed]}

See also

• Formaldehyde
• Paraformaldehyde
• Dioxane
• 1,3,5-Trioxanetrione