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| Names | |||
|---|---|---|---|
| Preferred IUPAC name
Propane-1,3-diol[1] | |||
| Other names
1,3-Dihydroxypropane | |||
| Identifiers | |||
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3D model (JSmol) |
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| 3DMet | |||
| Abbreviations | PDO | ||
| 969155 | |||
| ChEBI | |||
| ChEMBL | |||
| ChemSpider |
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| DrugBank |
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| ECHA InfoCard | 100.007.271 
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| EC Number |
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| KEGG |
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| MeSH | 1,3-propanediol | ||
PubChem CID |
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| RTECS number |
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| UNII | |||
CompTox Dashboard (EPA) |
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| Properties | |||
| 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 | ||
| Miscible | |||
| log P | −1.093 | ||
| Vapor pressure | 4.5 Pa | ||
Refractive index (nD) |
1.440 | ||
| Thermochemistry | |||
Std enthalpy of |
−485.9–−475.7 kJ mol−1 | ||
Std enthalpy of |
−1848.1–−1837.9 kJ mol−1 | ||
| Hazards | |||
| NFPA 704 (fire diamond) | |||
| Flash point | 79.444 °C (174.999 °F; 352.594 K) | ||
| 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 [77 °F], 100 kPa). | |||
1,3-Propanediol is the organic compound with the formulaCH2(CH2OH)2. This 3-carbon diol is a colorless viscous liquid that is miscible with water.
It is mainly used as a building block in the production of polymers such as polytrimethylene terephthalate.[2]
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.
1,3-Propanediol is mainly produced by the hydration of acrolein. An alternative route involves the hydroformylationofethylene oxide to form 3-hydroxypropionaldehyde. The aldehyde is subsequently hydrogenated to give 1,3-propanediol. Biotechnological routes are also known.[2]
Two other routes involve bioprocessing by certain micro-organisms:
1,3-Propanediol does not appear to pose a significant hazard via inhalation of either the vapor or a vapor/aerosol mixture.[7] However, like with any chemical exposure should be controlled and maintained.
