1,3-Propanediol

Catalog	ACM504632
CAS	504-63-2
Structure
Category	Environmental Standards
Description	Liquid; OtherSolid, Liquid
Synonyms	Propane-1,3-Diol
IUPAC Name	Propane-1,3-diol
Molecular Weight	76.09
Molecular Formula	C3H8O2
Canonical SMILES	C(CO)CO
InChI	InChI=1S/C3H8O2/c4-2-1-3-5/h4-5H,1-3H2
InChI Key	YPFDHNVEDLHUCE-UHFFFAOYSA-N
Boiling Point	214 °C
Melting Point	-27 °C (lit.)
Flash Point	79.4±0.0 °C
Purity	98%
Density	1.053 g/ml
Solubility	In water, 1.0X10+6 mg/L at 25 °C (est);Miscible with water;Very soluble in ethyl ether; slightly soluble in benzene;Miscible with alcohol
Appearance	Liquid
Application	1,3-Propanediol is a versatile chemical compound known for its application in specialized performance areas due to its status as an isomer of propylene glycol. This colorless and odorless liquid boasts high miscibility with several solvents, such as water, ethanol, and acetone, which makes it valuable in a range of chemical reactions and industrial processes. Despite its higher cost, it serves critical functions as a raw material for producing 1,3-dioxanes and is utilized in the synthesis of polymers, notably poly(trimethylene terephthalate) for high-quality carpet fibers and polyester coatings. It acts as a chain extender in polyurethane elastomers and plays roles in epoxy formulations and as a rubber additive. Additionally, 1,3-Propanediol is employed in lowering the freezing point of water and as a solvent for thin film preparations. Prepared as a by-product in glycerin manufacture, it offers utility in various synthetic applications, including natural product synthesis and polymerization reactions, while its prospects in emerging markets continue to expand.
EC Number	207-997-3
LogP	-1.04 (LogP);log Kow = -1.04
Refractive Index	1.434
Stability	Chemical stability: Stable under recommended storage conditions.
Vapor Pressure	0.04 mmHg;0.0441 mm Hg at 25 °C

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