Assertion: dilute phosphoric acid | /r/CapableOf | cool the same
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Source sentences:
text: Thermethod of purifying and concentrating raw dilute phosphoric acid which comprises heating the acid in a closed container to a point below ebullition, spraying the heated liquid into contact with a blast of warm' air to evaporate water from said liquid and to cool the same and separating out the precipitates thrown down by said concentration and cooling.