TEREPHTHALIC ACID BIS(2-HYDROXYETHYL) ESTER
TEREPHTHALIC ACID BIS(2-HYDROXYETHYL) ESTER Basic information
- Product Name:
- TEREPHTHALIC ACID BIS(2-HYDROXYETHYL) ESTER
- Synonyms:
-
- TEREPHTHALIC ACID BIS(2-HYDROXYETHYL) ESTER
- 1,4-benzenedicarboxylicacid,bis(2-hydroxyethyl)ester
- bis(beta-hydroxyethyl)terephthalate
- bis(ethyleneglycol)terephthalate
- bis(hydroxyethyl)terephthalate
- BHET
- Bis(2-Hydroxyethyl)terephthalat
- Terephthalicacid,bis(hydroxyethyl)ester
- CAS:
- 959-26-2
- MF:
- C12H14O6
- MW:
- 254.24
- EINECS:
- 213-497-6
- Product Categories:
-
- Alcohols
- Monomers
- Polymer Science
- Mol File:
- 959-26-2.mol
TEREPHTHALIC ACID BIS(2-HYDROXYETHYL) ESTER Chemical Properties
- Melting point:
- 106-109°C
- Boiling point:
- 317.45°C (rough estimate)
- Density
- 1.2163 (rough estimate)
- vapor pressure
- 0Pa at 20℃
- refractive index
- 1.4790 (estimate)
- storage temp.
- Room Temperature, Under inert atmosphere
- solubility
- DMSO (Slightly), Methanol (Slightly, Heated)
- form
- Solid
- pka
- 13.48±0.10(Predicted)
- color
- White to Off-White
- Water Solubility
- 6.011g/L at 20℃
- InChI
- 1S/C12H14O6/c13-5-7-17-11(15)9-1-2-10(4-3-9)12(16)18-8-6-14/h1-4,13-14H,5-8H2
- InChIKey
- QPKOBORKPHRBPS-UHFFFAOYSA-N
- SMILES
- OCCOC(=O)c1ccc(cc1)C(=O)OCCO
- LogP
- 1.6 at 25℃
- CAS DataBase Reference
- 959-26-2
- EPA Substance Registry System
- Bis(2-hydroxyethyl) terephthalate (959-26-2)
Safety Information
- Safety Statements
- 22-24/25
- WGK Germany
- 3
- TSCA
- TSCA listed
- HS Code
- 2917.39.7000
- Storage Class
- 11 - Combustible Solids
- Hazardous Substances Data
- 959-26-2(Hazardous Substances Data)
TEREPHTHALIC ACID BIS(2-HYDROXYETHYL) ESTER Usage And Synthesis
Uses
Bis(2-hydroxyethyl) Terephthalate is used in the synthesis of branched polyethylene terephthalate.
Flammability and Explosibility
Not classified
Synthesis
A 250 mL round-bottomed three-necked flask equipped with an electromagnetic stirrer, thermometer, and reflux condenser was charged with 5 g of PET and a quantity of EG and catalyst. The glycolysis reaction was carried out at 160-196??C in a nitrogen atmosphere. At the end of the reaction, boiling water was added to the round bottom flask and the mixture was separated into solid and liquid phases by filtration. The solid product contained unpolymerized PET, insoluble oligomers and solid catalyst and was extracted with boiling water; the water was mixed with the liquid fraction. White crystalline bis(2-hydroxyethyl) terephthalate was obtained by cooling from the filtrate.
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