1,3-propanediol 1,3-propanediol 1,3-propanediol is the organic compound with the formula ch2(ch2oh)2. this 3-carbon diol is a colorless viscous liquid that is miscible with water. 1,3-propanediol skeletal formula of 1,3-propanediol spacefill model of 1,3-propanediol names preferred iupac name propane-1,3-diol other names 1,3-dihydroxypropanetrimethylene glycol identifiers cas number 504-63-2 y 3d model (jsmol) interactive image 3dmet b00444 abbreviations pdo beilstein reference 969155 chebi chebi:16109 y chembl chembl379652 y chemspider 13839553 y drugbank db02774 y echa infocard 100.007.271 ec number 207-997-3 kegg c02457 y mesh 1,3-propanediol pubchem cid 10442 rtecs number ty2010000 unii 5965n8w85t y comptox dashboard (epa) dtxsid8041246 inchi inchi=1s/c3h8o2/c4-2-1-3-5/h4-5h,1-3h2 ykey: ypfdhnvedlhuce-uhfffaoysa-n ykey: ypfdhnvedlhuce-uhfffaoyas smiles occco properties chemical formula c3h8o2 molar mass 76.095 g·mol−1 appearance colourless liquid density 1.0597 g cm−3 melting point −27 °c; −17 °f; 246 k boiling point 211 to 217 °c; 412 to 422 °f; 484 to 490 k solubility in water miscible log p −1.093 vapor pressure 4.5 pa refractive index (nd) 1.440 thermochemistry std enthalpy offormation (δfh⦵298) −485.9–−475.7 kj mol−1 std enthalpy ofcombustion (δch⦵298) −1848.1–−1837.9 kj mol−1 hazards nfpa 704 (fire diamond) 2 2 0 flash point 79.444 °c (174.999 °f; 352.594 k) autoignitiontemperature 400 °c (752 °f; 673 k) safety data sheet (sds) sciencelab.com except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). n verify (what is yn ?) infobox references products it is mainly used as a building block in the production of polymers such as polytrimethylene terephthalate. 1,3-propanediol can be formulated into a variety of industrial products including composites, adhesives, laminates, coatings, moldings, aliphatic polyesters, and copolyesters. it is also a common solvent. it is used as an antifreeze and as a component in wood paint. production 1,3-propanediol is mainly produced by the hydration of acrolein. an alternative route involves the hydroformylation of ethylene oxide to form 3-hydroxypropionaldehyde. the aldehyde is subsequently hydrogenated to give 1,3-propanediol. biotechnological routes are also known. two other routes involve bioprocessing by certain micro-organisms: conversion from glucose effected by a genetically modified strain of e. coli by dupont tate & lyle bioproducts (see: bioseparation of 1,3-propanediol). an estimated 120,000 tons were produced in 2007". according to dupont, the bio-pdo process uses 40% less energy than conventional processes, because of dupont and tate & lyle's success in developing a renewable bio-pdo process, the american chemical society awarded the bio-pdo research teams the "2007 heroes of chemistry" award. conversion from glycerol (a by-product of biodiesel production) using clostridium diolis bacteria and enterobacteriaceae. safety 1,3-propanediol does not appear to pose a significant hazard via inhalation of either the vapor or a vapor/aerosol mixture.