1,3-Propanediol

1,3-Propanediol

Chembox new
Name = 1,3-Propanediol
ImageFile = 1,3-Propanediol.svg
ImageSize = 200px
ImageName = 1,3-Propanediol
ImageFileR1 = 1,3-Propanediol-SpaceFillingModel.png ImageSizeR1 = 100px
ImageNameR1 = Space-Filling Model
ImageFileL1 = 1,3-Propanediol-Ball&Stick.png ImageSizeL1 = 100px
ImageNameL1 = Ball-and-Stick model
IUPACName = Propane-1,3-diol
OtherNames = Trimethylene glycol, 1,3-Dihydroxypropane, propane-1,3-diol, PDO
Section1 = Chembox Identifiers
CASNo = 504-63-2
SMILES = OCCCO
Section2 = Chembox Properties
Formula = C3H8O2
MolarMass = 76.09 g/mol
Density = 1.0597 g/cm³
MeltingPt = -28 °C
BoilingPt = 210-212 °C
Section7 = Chembox Hazards
ExternalMSDS = [http://www.gfschemicals.com/Search/MSDS/3292MSDS.PDF MSDS for 1,3-propanediol]

1,3-Propanediol is the organic compound with the formula CH2(CH2OH)2. This three-carbon diol is a colorless viscous liquid that is miscible with water. ["Merck Index", 11th Edition, 9629.] It is mainly used as a building block in the production of polymers.

1,3-Propanediol can be formulated into a variety of industrial products including composites, adhesives, laminates, coatings, moldings, aliphatic polyesters, copolyesters. It is also a solvent and used as a antifreeze.

Production

Three routes are practiced industrially. The hydration of acrolein and the hydroformylation of ethylene oxide both afford 3-hydroxypropionaldehyde, which undergoes hydrogenation. A third, more recent method involves the bioprocessing of corn syrup by Dupont Tate & Lyle Bioproducts. The conversion is effected by a genetically modified strain of E. coli. An estimated 120,000 tons were produced in 2007". [Peter Werle, Marcus Morawietz, Stefan Lundmark, Kent Sörensen, Esko Karvinen, Juha Lehtonen "Alcohols, Polyhydric" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, 2006, Weinheim.]

afety

1,3-Propanediol does not appear to pose a significant hazard via inhalation of either the vapor or a vapor/aerosol mixture. [cite journal | title = Inhalation toxicity of 1,3-propanediol in the rat | author = Scott RS, Frame SR, Ross PE, Loveless SE, Kennedy GL. | journal = Inhal Toxicol. | year = 2005 | volume = 17 | issue = 9 | pages = 487–93 | doi = 10.1080/08958370590964485 | pmid = 16020043]

ee also

* Propylene glycol
* Ethylene glycol

References

External links

* [http://www.shellchemicals.com/chemicals/pdf/pdo/brochure.pdf?section=our_products Manufacturer's brochure describing uses of 1,3-propanediol]


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