| Identification | More | [Name]
1,6-Hexanediol | [CAS]
629-11-8 | [Synonyms]
1,6-DIHYDROXYHEXANE
1,6-HDO
1,6-HEXANEDIOL
1,6-HEXYLENE GLYCOL
HDO(R)
HEXAMETHYLENE GLYCOL
HEXANE-1,6-DIOL
ai3-03307
alpha,omega-Hexanediol
Hexamethylenediol
Hexanediol-(1,6)
omega-hexanediol
1,6-Hexanediol solution, 6 M
1,6-Hexanediol 3 M Solution
1,6-Hexanediol,97%
1,6-hexanediol solution
1,6-Hexandiol
1,6-HEXANEDIOL (HDO)
1,6-Hexanediol solution, Additive Screening Solution 05/Fluka kit no 78374 | [EINECS(EC#)]
211-074-0 | [Molecular Formula]
C6H14O2 | [MDL Number]
MFCD00002985 | [Molecular Weight]
118.17 | [MOL File]
629-11-8.mol |
| Chemical Properties | Back Directory | [Appearance]
white waxy flakes | [Melting point ]
38-42 °C (lit.) | [Boiling point ]
250 °C (lit.) | [density ]
0.96
| [vapor pressure ]
0.53 mm Hg ( 20 °C)
| [refractive index ]
1.457
| [Fp ]
215 °F
| [storage temp. ]
2-8°C
| [solubility ]
H2O: 0.1 g/mL, clear, colorless
| [form ]
Waxy Flakes | [pka]
14.87±0.10(Predicted) | [color ]
White | [PH]
7.6 (900g/l, H2O, 20℃) | [explosive limit]
6.6-16%(V) | [Water Solubility ]
500 g/L | [Sensitive ]
Hygroscopic | [λmax]
λ: 260 nm Amax: 0.1
λ: 280 nm Amax: 0.1 | [Merck ]
14,4690 | [BRN ]
1633461 | [InChIKey]
XXMIOPMDWAUFGU-UHFFFAOYSA-N | [LogP]
0 at 25℃ | [Uses]
Solvent, intermediate for high polymers (nylon,
polyesters), coupling agent, coil coating. | [CAS DataBase Reference]
629-11-8(CAS DataBase Reference) | [NIST Chemistry Reference]
1,6-Hexanediol(629-11-8) | [EPA Substance Registry System]
629-11-8(EPA Substance) |
| Safety Data | Back Directory | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S36/37:Wear suitable protective clothing and gloves .
S24/25:Avoid contact with skin and eyes .
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) . | [WGK Germany ]
1
| [RTECS ]
MO2100000
| [Autoignition Temperature]
608 °F | [TSCA ]
Yes | [HS Code ]
29053980 | [Hazardous Substances Data]
629-11-8(Hazardous Substances Data) | [Toxicity]
LD50 orally in rats: 3.73 g/kg (Carpenter) |
| Hazard Information | Back Directory | [Hazard]
Toxic by ingestion. | [Chemical Properties]
white waxy flakes | [Definition]
ChEBI: A diol that is hexane substituted by hydroxy groups at positions 1 and 6. | [Synthesis Reference(s)]
Tetrahedron Letters, 34, p. 243, 1993 DOI: 10.1016/S0040-4039(00)60557-9 | [storage]
Store at RT | [Purification Methods]
Fractionally crystallise it from its melt or from water. Distil it in vacuo. [Beilstein 1 IV 2556.] |
| Questions And Answer | Back Directory | [Description]
1,6-Hexanediol is a waxy hygroscopic solid compound that is white in colour. The compound is a linear diol that contains two primary hydroxyl groups that are located at the terminal. 1,6-Hexanediol’s linear hydrocarbon chain enables the compound to have enhanced hardness and flexibility of polyesters. Moreover, this property is utilized in the extending chains in polyurethanes.
| [Preparation]
1,6-Hexanediol is produced by a propriety process that is based on BASF technology. Industrially, it is prepared by the hydrogenation of adipic acid. Conversely, in the laboratory, 1,6-Hexanediol can be synthesized by the reduction of adipic acid with lithium aluminum hydride.
| [Uses and Applications]
Polyurethanes
1,6-Hexanediol is widely utilized in the manufacture of polyesterols such as sebacates, azelates, and adipates. These compounds are resistant to hydrolysis and have low glass transition temperature as well as high mechanical levels. 1,6-hexanediol is used as an ingredient in the preparation of a wide range of tailor-made products for numerous specialty and standard applications.
In Acrylics
1,6-hexanediol is utilized as an ingredient in the manufacture of the bifunctional hexanediol diacrylate which is a monomer that is normally used in conjunction with other acrylic monomers as a reactive diluent for decorative coatings and printing inks.
In Adhesives
Urethanes and co-terephthalates that are based on 1,6-hexanediol provide faster better tack properties and crystallization. Due to its low glass transition property, 1,6-hexanediol offers high flexibility as well as excellent adhesive properties.
Other Uses
1,6-hexanediol is incorporated into the production of other compounds used in polymeric thickeners, sizing agents, plasticizers for polyvinyl chloride, pesticides, and surfactants dyestuffs as a flexible building block.
| [Safety]
1,6-hexanediol is a no-irritating to the skin. However, it can be irritative to the respiratory tract and mucous membrane. 1,6-hexanediol vapours or dust cause irritation to the eye. Severe eye exposure may cause conjunctivitis, iritis, and diffuse corneal opacity.
| [Quality and Analysis]
The assay of the pure product is about 98 %; impurities are various diols and -caprolactone as well as traces of water. The color number of the product determined photometrically according to the Pt/Co scale must not exceed 15 APHA. Above 70 ℃, 1,6- hexanediol tends to turn yellow.
|
|
|