1,5-Pentanediol

1,5-Pentanediol

Chembox new
Reference= [ [http://www.sigmaaldrich.com/catalog/search/ProductDetail/SIAL/P7703 1,5-Pentanediol] at Sigma-Aldrich]
ImageFile=Pentanediol.pngImageSize=200px
IUPACName=pentane-1,5-diol
OtherNames=Pentylene glycol
Pentamethylene glycol
1,5-Dihydroxypentane
Section1= Chembox Identifiers
CASNo=111-29-5
PubChem=8105
SMILES=C(CCO)CCO
Section2= Chembox Properties
Formula=C5H12O2
MolarMass=104.14758
Appearance=
Density=0.994 g/mL at 25 °C
MeltingPtC=-18
BoilingPtC=242
Solubility=Miscible
Section3= Chembox Hazards
MainHazards=
FlashPt=
Autoignition=

1,5-Pentanediol is the organic compound with the formula HOCH2CH2CH2CH2CH2OH. Like other diols, this viscous liquid is used as plasticizer and also forms polyesters that are used as emulsifying agents and resin intermediates. ["Merck Index", 11th Edition, 7073.] It is manufactured by hydrogenation of glutaric acid and its derivatives. [Peter Werle and Marcus Morawietz "Alcohols, Polyhydric" in Ullmann's Encyclopedia of Industrial Chemistry: 2002, Wiley-VCH: Weinheim. DOI 10.1002/14356007.a01_305]

Contamination of Bindeez

A toy called "Bindeez" ("Aqua Dots" in North America) was recalled by the distributor in November 2007 because of the unauthorized substitution of 1,5-pentanediol with 1,4-butanediol. The toy consists of small beads that stick to each other upon sprinkling with water. 1,4-Butanediol, which when ingested is metabolized to gamma-hydroxybutyric acid, was detected by GC-MS. [cite news | url = http://pubs.acs.org/cen/news/85/i46/8546news11.html | publisher = Chemical & Engineering News | title = Industrial Chemical Sullies Popular Children's Toy | author = Linda Wang | date = 2007-11-09] ChemNet China lists the price of 1,4-butanediol at between about US$1,350-2,800 per metric ton, while the price for 1,5-pentanediol is about US$9,700 per metric ton. [cite news | author = Associated Press | title = US mother says her son began to stumble and vomit after eating Chinese-made toy, now recalled | publisher = International Herald Tribune | date = 2007 Nov 07]

References


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