1,2-pentanediol

Structural formula
	Simplified structural formula without stereochemistry
General
Surname	1,2-pentanediol
other names	Pentane-1,2-diol; Pentylene glycol; α- n -amylene glycol;
Molecular formula	C 5 H 12 O 2
Brief description	colorless to yellowish odorless liquid
External identifiers / databases
EC number	226-285-3
ECHA InfoCard	100,023,896
PubChem	93000
ChemSpider	83953
Wikidata	Q3374899
properties
Molar mass	104.15 g mol −1
Physical state	liquid
density	0.97 g cm −3
Melting point	<−40 ° C
boiling point	206 ° C
Vapor pressure	1.5 Pa (20 ° C)
solubility	miscible with water
Refractive index	1.439 (20 ° C)
safety instructions
GHS labeling of hazardous substances danger
H and P phrases	H: 318
	P: 280-305 + 351 + 338-310
Toxicological data	12700 mg kg −1 ( LD 50 , rat , oral )
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

1,2-Pentanediol is a chemical compound from the group of alkanediols that occurs in two isomeric forms.

Extraction and presentation

1,2-Pentanediol can be obtained directly from furfural with a catalyst. The compound can also be prepared from butyraldehyde and paraformaldehyde .

properties

1,2-Pentanediol is a flammable, hardly ignitable, viscous, colorless to yellowish, odorless liquid that is miscible with water.

use

1,2-Pentanediol is used as an intermediate in the manufacture of fungicides . It also serves as an intermediate in the manufacture of agrochemicals and can be used as an ingredient in personal care and cosmetic products. It is also used in maintenance products for a wide variety of cleaning products, air treatment products, polishes, wax blends, and printing inks.

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k Entry on 1,2-pentanediol in the GESTIS substance database of the IFA , accessed on December 2, 2018(JavaScript required) .
↑ Data sheet 1,2-pentanediol, 96% from Sigma-Aldrich , accessed on December 2, 2018 ( PDF ).
↑ Tomoo Mizugaki, Takayuki Yamakawa et al. a .: Direct Transformation of Furfural to 1,2-Pentanediol Using a Hydrotalcite-Supported Platinum Nanoparticle Catalyst. In: ACS Sustainable Chemistry & Engineering. 2, 2014, p. 2243, doi : 10.1021 / sc500325g .
↑ Xu, B.-M & Tang, Q & Luo, Y & Cheng, Q & Chen, K. (2014). Study on the new synthetic method of 1, 2-pentanediol and process optimization thereof. Gao Xiao Hua Xue Gong Cheng Xue Bao / Journal of Chemical Engineering of Chinese Universities. 28. 92-97. doi : 10.3969 / j.issn.1003-9015.2014.01.014 .
↑ Pk: RÖMPP Lexikon Chemie, 10th edition, 1996-1999 Volume 4: M - Pk . Georg Thieme Verlag, 2014, ISBN 3-13-200031-0 , p. 1637 ( limited preview in Google Book search).
^ Biesterfeld AG: 1,2-pentanediol | Biesterfeld AG , accessed on December 2, 2018.

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k Entry on 1,2-pentanediol in the GESTIS substance database of the IFA , accessed on December 2, 2018(JavaScript required) .

[Sigma-2] Data sheet 1,2-pentanediol, 96% from Sigma-Aldrich , accessed on December 2, 2018 ( PDF ).

[DOI10.1021/sc500325g-3] Tomoo Mizugaki, Takayuki Yamakawa et al. a .: Direct Transformation of Furfural to 1,2-Pentanediol Using a Hydrotalcite-Supported Platinum Nanoparticle Catalyst. In: ACS Sustainable Chemistry & Engineering. 2, 2014, p. 2243, doi : 10.1021 / sc500325g .

[4] Xu, B.-M & Tang, Q & Luo, Y & Cheng, Q & Chen, K. (2014). Study on the new synthetic method of 1, 2-pentanediol and process optimization thereof. Gao Xiao Hua Xue Gong Cheng Xue Bao / Journal of Chemical Engineering of Chinese Universities. 28. 92-97. doi : 10.3969 / j.issn.1003-9015.2014.01.014 .

[Pk-5] Pk: RÖMPP Lexikon Chemie, 10th edition, 1996-1999 Volume 4: M - Pk . Georg Thieme Verlag, 2014, ISBN 3-13-200031-0 , p. 1637 ( limited preview in Google Book search).

[biesterfeld.com-6] Biesterfeld AG: 1,2-pentanediol | Biesterfeld AG , accessed on December 2, 2018.