17689-42-8

Basic information

• Product Name: 2-hydroxyethyl hydrogen phthalate
• Synonyms: 2-hydroxyethyl hydrogen phthalate;1,2-Benzenedicarboxylic acid hydrogen 1-(2-hydroxyethyl) ester;Phthalic acid 1-(2-hydroxyethyl) ester;2 - ((2 - Hydroxyethoxy)carbonyl)benzoic acid
• CAS NO: 17689-42-8
• Molecular Formula: C₁₀H₁₀O₅
• Molecular Weight: 210.1834
• EINECS: 241-676-9
• Mol File: 17689-42-8.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 428.3 °C at 760 mmHg
• Flash Point: 173.8 °C
• Appearance: /
• Density: 1.365 g/cm³
• Vapor Pressure: 4.26E-08mmHg at 25°C
• Refractive Index: 1.578
• CAS DataBase Reference: 2-hydroxyethyl hydrogen phthalate(CAS DataBase Reference)
• NIST Chemistry Reference: 2-hydroxyethyl hydrogen phthalate(17689-42-8)
• EPA Substance Registry System: 2-hydroxyethyl hydrogen phthalate(17689-42-8)

Safety Data

• Hazardous Substances Data: 17689-42-8(Hazardous Substances Data)

Usage

General Description

2-hydroxyethyl hydrogen phthalate, also known as HEHP, is a chemical compound with the molecular formula C10H10O5. It is a colorless liquid with a faint odor and is used as a plasticizer and solvent in various industrial applications. HEHP is commonly found in consumer products such as adhesives, paints, and sealants, and is also used in the production of vinyl flooring and synthetic leather. It is known to have low acute toxicity and is not considered to be a significant health hazard when used in accordance with safety guidelines. However, exposure to HEHP should still be limited, as it has been shown to be a potential irritant to the skin and eyes. Overall, 2-hydroxyethyl hydrogen phthalate plays an important role in the manufacturing of various products but should be handled with care to minimize potential health risks.

InChI:InChI=1/C10H10O5/c11-5-6-15-10(14)8-4-2-1-3-7(8)9(12)13/h1-4,11H,5-6H2,(H,12,13)

Upstream product

• 85-44-9 phthalic anhydride 
• 107-21-1 ethylene glycol 
• 88-99-3 benzene-1,2-dicarboxylic acid 
• 197173-07-2 1,3-bis(ethylenedioxy)-2-indanone 

Relevant articles and documents

Kinetics and mechanism of the formation of mono- and di-phthalate esters catalysed by titanium and tin alkoxides

The kinetics and mechanism of the formation of phthalate mono-esters and phthalate di-esters from phthalic anhydride and a variety of mono- and di-hydric alcohols are reported and discussed. The kinetic work is extended to a mechanistic study of the same reactions using titanium tetra-n-butoxide and tri-n-butyltin ethoxide as catalysts. The results support a mechanism involving alkoxy ligand exchange at the metal as a crucial step in the catalysis.

Preparation of unsaturated polyesters using boric acid as mild catalyst and their sulfonated derivatives as new family of degradable polymer surfactants

Boric acid-pyridine mixture is presented as mild catalyst for polycondensation of semi-esters of ethylene glycol, in situ-generated by " cyclic anhydride-diol" reaction scheme from maleic, succinic and phthalic anhydrides. This catalyst system was demonstrated to give colorless polyesters in low molecular weights (Mn: 1650-1950 Da) within 4 h at 130 °C 1H NMR spectra of the polyesters derived from maleic anhydride revealed significant isomerization of maleate groups to fumarate units (～80 %) during the polyesterification. Maleate and fumarate double bonds of the unsaturated polyesters (USP) were demonstrated to add bisulfite ions quantitatively to give sulfonated polyesters. The resulting sulfonated polyesters with 50% and 70% succinate units exhibited relatively narrow size spherical and ellipsoidal micelles in aqueous solutions, as inferred from surface tension, DLS and ESEM measurements. The results showed that, this procedure allows preparing a new family of polymer surfactants with tunable hydrophilicity and degradable polyester backbones.