1,2-Hexanediol
CASRN#
6920-22-5
INCI Name
1,2-HEXANEDIOL
Alternate Names
1,2-Hexanediol, hexane-1,2-diol, DL-1,2-Hexanediol, 1,2-Dihydroxyhexane, 5,6-Dihydroxyhexane
Common Trade Names
Molecular Weight
118 g/mol
Functional Uses
cosurfactant, Solvent, humectant, preservative
Common Impurities
-
Vapor Pressure
0.00432 mm Hg
Octanol-water partition coefficient (log Kow)
0.25
Solubility at 23.5 C
9E+3 mg/l
Boiling Point
228.3 °C
Particle size range as aerodynamic diameter
- - - μm
Hazard Summary
Assessed by
U.S. EPA Low Priority Chemical report.
Assessment Date
Jul 10, 2020
Assessment Expires
Jul 9, 2025
Executive Summary
1,2-Hexanediol is an alcohol in the diol (or glycol) family. It is an organic chemical compound containing two hydroxyl (-OH) groups on a six-carbon backbone. Because of the adjacent positioning of the two hydroxyl groups, 1,2-alkanediols contain a stereocenter, leading to two stereoisomers: cis1,2-hexanediol and trans-1,2-hexanediol. Because the hydroxyl groups are located on the first and second carbons on one end of a six-carbon chain, 1,2-hexanediol is an amphiphilic molecule that acts as both a cosurfactant and solvent. A cosurfactant increases the effectiveness of surfactants, which are compounds containing both hydrophilic and hydrophobic moieties that work to lower the surface tension at an interface (e.g., between two liquids). Surfactants may function as detergents, emulsifiers, foaming agents, wetting agents, and dispersants in a variety of applications and product sectors. See Section 5 for 1,2-hexanediol’s conditions of use. In addition, 1,2-hexanediol is hygroscopic and thus acts as a humectant, which means that it absorbs water and increases hydration in products. Also, straight-chain 1,2-alkanediols, including 1,2- hexanediol, have broad spectrum antimicrobial properties and are used alone or in combination with other chemicals, to serve as preservatives and/or preservative boosters. These properties contribute to the use of 1,2-hexanediol as a multifunctional ingredient in products.
Hazard Tables
How to read the GHS Hazard Summary Table
Carcinogenicity |
Mutagenicity |
Reproductive Toxicity |
Developmental Toxicity |
Acute Toxicity |
STOT-Single |
STOT-Repeated |
STOT- Neurotoxicity-Single |
STOT- Neurotoxicity-Repeated |
Skin Sensitizer |
Respiratory Sensitizer |
Skin Corrosion/Irritation |
Serious Eye Damage/Eye Irritation |
Acute Aquatic Toxicity |
Chronic Aquatic Toxicity |
Ozone Depletion |
|
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Other
- Explosives: Not classified
- Flammable Gases: Not classified
- Aerosols: Not classified
- Oxidizing Gases: Not classified
- Flammable Liquids: Not classified
- Flammable Solids: Not classified
- Self-reactive substances and mixtures: Not classified
- Pyrophoric Liquids: Not classified
- Pyrophoric Solids: Not classified
- Self-heating Substances and Mixtures: Not classified
- Substances and Mixtures which in contact with water, emit flammable gases: Not classified
- Oxidizing Liquids: Not classified
- Oxidizing Solids: Not classified
- Organic Peroxides: Not classified
- Corrosive to Metals: Not classified
- Desensitized Explosives: Not classified
How to read the C2CC Hazard Summary Table
Human Health |
Environmental |
Other |
|||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Carcinogenicity |
Mutagenicity |
Reproductive & Developmental Toxicity |
Endocrine Activity / Disruption |
Oral Toxicity |
Dermal Toxicity |
Inhalation Toxicity |
Neurotoxicity |
Skin, Eye, and Respiratory Corrosion/Irritation |
Sensitization of Skin and Airways |
Fish Toxicity |
Daphnia Toxicity |
Algae Toxicity |
Terrestrial Toxicity |
Persistence |
Bioaccumulation |
Climatic Relevance |
Other (Human Health) |
Organohalogens |
Toxic Metals |
Other (Environmental Health) |
|
|