1,3-dioxane

Structural formula
General
Surname	1,3-dioxane
other names	Formaldehyde trimethylene acetal
Molecular formula	C 4 H 8 O 2
Brief description	colorless liquid
External identifiers / databases
CAS number 505-22-6 EC number 208-005-1 ECHA InfoCard 100.007.278 PubChem 10450 Wikidata Q4545677
properties
Molar mass	88.11 g mol −1
Physical state	liquid
density	1.034 g cm −3
Melting point	−45 ° C
boiling point	105-106 ° C
Refractive index	1.418 (20 ° C)
safety instructions
GHS labeling of hazardous substances danger H and P phrases H: 225-302-312-332 P: 210-280
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

1,3-Dioxane is a chemical compound from the group of oxygen-containing heterocycles .

Extraction and presentation

1,3-Dioxane can be obtained by reacting 1,3-propanediol and formaldehyde .

properties

1,3-Dioxane is a colorless, volatile and flammable liquid.

use

1,3-Dioxane is used as a solvent in the synthesis of 8- and 9-membered dioxazocines and dioxazonines .

safety instructions

The vapors of 1,3-dioxane form explosive mixtures with air (flash point 5 ° C). It can form peroxides with air .

Individual evidence

1. ↑ ^{a b c d e f g h i} Entry on 1,3-dioxane in the GESTIS substance database of the IFA , accessed on January 2, 2018(JavaScript required) .
2. ↑ ^{a b} Data sheet 1,3-Dioxane, 97% from Sigma-Aldrich , accessed on January 2, 2018 ( PDF ).
3. ↑ Entry on 1,3-Dioxane in the Hazardous Substances Data Bank , accessed January 2, 2018.