Y. Song, C. Zhang, Jing Li
Dec 1, 2012
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Journal
Advanced Materials Research
Abstract
When synthetizing 2 - hydroxy - 6 - naphthoic acid with 2 - naphthol as raw material , we use a variety of methods to characterize and analyze the intermediates and target product . Through melting point method, the melting point of HNA we synthetized is showed to be slightly lower than standard samples. High performance liquid chromatographic shows that the purity of 2 - methoxy - 6 - naphthoic acid 2 - hydroxy - 6 - naphthoic acid reach up to 81.98% and 99.0% respectively. The purity of 2-hydroxyl-6-naphthoic acid is showed to be 97.1% with ultraviolet spectrophotometry.