Overview
2-Hydroxyterephthalic Acid is an aromatic organic compound belonging to the class of dicarboxylic acids. It features both carboxyl and hydroxyl functional groups on a benzene ring, making it a versatile intermediate in chemical synthesis. The compound is structurally related to terephthalic acid but with an additional hydroxyl group at the 2-position. This modification gives it unique reactivity patterns and makes it valuable for creating specialized polymers and pharmaceutical compounds.
Physical and Chemical Properties
As a crystalline solid, 2-Hydroxyterephthalic Acid exhibits moderate solubility in polar solvents but limited solubility in non-polar media. Its thermal stability is notable, with decomposition rather than melting occurring around 300°C. The presence of both hydroxyl and carboxyl groups creates multiple reaction sites, allowing for various chemical modifications. The compound demonstrates typical aromatic chemistry while also participating in reactions characteristic of both alcohols and carboxylic acids.
Main Applications
The primary industrial use of 2-Hydroxyterephthalic Acid is in polymer chemistry, where it serves as a monomer for specialty polyesters and other condensation polymers. These materials often exhibit enhanced thermal and chemical resistance compared to conventional polymers. In pharmaceutical applications, the compound finds use as a building block for drug synthesis, particularly in creating molecules with rigid aromatic backbones. It's also employed in research settings as a fluorescent probe precursor due to its ability to form luminescent complexes.
Safety and Storage
While not classified as highly hazardous, 2-Hydroxyterephthalic Acid requires standard chemical handling precautions. Appropriate personal protective equipment including gloves and safety glasses should be used when handling the powder form. Storage recommendations include keeping the material in tightly sealed containers away from moisture and strong oxidizers. The compound is stable under normal conditions but may degrade if exposed to extreme heat or incompatible chemicals for extended periods.
B2B Procurement Guide
Industrial buyers should specify required purity levels, which typically range from 95% to 99.5% for different applications. Packaging options vary from 25kg drums for large-scale users to smaller laboratory quantities. Technical documentation including certificates of analysis and material safety data sheets should be requested from suppliers. Lead times may vary depending on production schedules, so buyers should plan procurement accordingly, especially for customized specifications.
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