However, its melting point is 148 C. A recently announced thermotropic liquid crystal polymer based on p-hydroxybenzoic acid, terephthalic acid, and p, p'-biphenol has a high melting point of 420 C ...
The most important synthetic fiber. They contain at least 85% of polymericester of a substituted aromatic carboxylic acid including, but not restricted to, terephthalic acid and f-hydroxybenzoic acid.
Aspirin will be prepared by heating ethanoic anhydride with 2-hydroxybenzoic acid, separation using vacuum filtration and recrystallisation as a purification technique. Staff from the Department of ...
Background: Rising use of sunscreen products has led to increased reporting of adverse reactions to sunscreens. Objective: To investigate possible photoallergic reactions in patients who ...