1,8-Octanediol
Synonym(s):Octamethylene glycol
- CAS NO.：629-41-4
- Empirical Formula: C8H18O2
- Molecular Weight: 146.23
- MDL number: MFCD00002989
- EINECS: 211-090-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-10-24 21:11:45
What is 1,8-Octanediol?
Chemical properties
colorless to white crystals or flakes. soluble in ethanol, insoluble in water, ether, light gasoline.
The Uses of 1,8-Octanediol
As a monomer, 1,8-Octanediol is used in the synthesis of polymers polyesters and polyurethane.
What are the applications of Application
1,8-Octanediol is used in cosmetics, perfumes, ink, essence and in UV coating. It acts as a precursor in the synthesis of polymer and in the manufacture of pharmaceuticals. 1,8-Octanediol can undergo:
Polycondensation with citric acid to form biodegradable poly(1,8-octanediol citrate)(POC) crosslinked bioelastomer which can be blended with various additives.
Fischer esterification with dicarboxylic acids to form diol-based macromers.
What are the applications of Application
1,8-Octanediol is a monomer used in polymer synthesis
Preparation
1,8-Octanediol is synthesized by hydrogenation reduction under high temperature and high pressure using diethyl suberate as raw material and copper-chromium oxide as catalyst.
Definition
ChEBI: Octane-1,8-diol is an octanediol.
Purification Methods
Recrystallise the diol from EtOH and distil it in a vacuum. [Beilstein 1 IV 2592.]
Properties of 1,8-Octanediol
| Melting point: | 57-61 °C (lit.) |
| Boiling point: | 172 °C/20 mmHg (lit.) |
| Density | 1,053g/cm |
| refractive index | 1,438-1,44 |
| Flash point: | 148°C |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | Chloroform (Slightly), Methanol (Slightly) |
| form | Powder or Crystalline |
| pka | 14.89±0.10(Predicted) |
| color | Off-white to pale yellow |
| Water Solubility | Soluble in water and methanol. |
| BRN | 1633499 |
| InChI | InChI=1S/C8H18O2/c9-7-5-3-1-2-4-6-8-10/h9-10H,1-8H2 |
| CAS DataBase Reference | 629-41-4(CAS DataBase Reference) |
| NIST Chemistry Reference | 1,8-Octanediol(629-41-4) |
Safety information for 1,8-Octanediol
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 1,8-Octanediol
| InChIKey | OEIJHBUUFURJLI-UHFFFAOYSA-N |
| SMILES | C(O)CCCCCCCO |
1,8-Octanediol manufacturer
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