This study tried to establish a correlation between the presence/absence of moisture and color change in alkali hydroxide and alkali hydroxide free absorbents. Samples of both types of absorbents were tested using a moisture analyzer. The moisture content was determined and the color change during drying was observed. It was noted that color change did not happen even when the water retention was higher in the absorbents. However it was observed that with increasing concentrations of Alkali Hydroxide the color change on drying was delayed.
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