1,2-hexanediol
| Structural formula | ||||||||||
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| Enantiomers of 1,2-hexanediol; left: ( S ), right: ( R ) | ||||||||||
| General | ||||||||||
| Surname | 1,2-hexanediol | |||||||||
| other names |
Hexane-1,2-diol |
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| Molecular formula | C 6 H 14 O 2 | |||||||||
| Brief description |
colorless liquid with a characteristic odor |
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| External identifiers / databases | ||||||||||
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| properties | ||||||||||
| Molar mass | 118.18 g mol −1 | |||||||||
| Physical state |
liquid |
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| density |
0.95 g cm −3 |
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| boiling point |
223-224 ° C |
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| Vapor pressure |
9 hPa (108 ° C) |
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| solubility |
miscible with water, low aliphatic hydrocarbons and fatty acids |
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| Refractive index |
1.442 (20 ° C) |
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| safety instructions | ||||||||||
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| 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-Hexanediol is a chemical compound from the group of diols .
Extraction and presentation
1,2-Hexanediol can be obtained in about 45% yield by bromination of caproic acid , hydrolysis to hydroxycaproic acid and reduction with lithium aluminum hydride .
properties
1,2-Hexanediol is a flammable, hardly inflammable, hygroscopic, colorless liquid with a characteristic odor, which is miscible with water.
use
1,2-Hexanediol acts as a co-surfactant and is used to modify the sodium dodecyl sulfate micelles. It has a tendency to self-associate and form micelle-like aggregates. It is used for various cosmetic applications such as hair conditioners, deodorants and antiperspirants. It is a humectant and plays an important role in baby care products, bath products, make-up, cleaning and skin care products. It is also used as an additive in liquid cleaning compositions. It serves as a solvent, humectant and viscosity regulator in cosmetic products.
Individual evidence
- ↑ a b c d e f g h i Entry on DL-1,2-hexanediol in the GESTIS substance database of the IFA , accessed on January 8, 2018(JavaScript required) .
- ↑ a b data sheet 1,2-hexanediol, 97% from AlfaAesar, accessed on October 8, 2016 ( PDF )(JavaScript required) .
- ↑ a b data sheet 1,2-hexanediol, 98% from Sigma-Aldrich , accessed on October 8, 2016 ( PDF ).
- ↑ E. von Rudloff: SYNTHESIS OF SOME HEXANEDIOLS. In: Canadian Journal of Chemistry. 36, 1958, p. 486, doi : 10.1139 / v58-069 .
- ↑ haut.de: 1,2-HEXANEDIOL - ingredients / INCI , accessed on October 8, 2016.
- ↑ Belico: Ingredients