Assertion: molten ammonium nitrate | /r/HasProperty | sprayed into ascending cooler air stream
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text: Here the molten ammonium nitrate, containing from 4 to 6- weight percent moisture and which has been heated to about 130 to 150 C. and preferably to about 135 to 145 C., is sprayed into an ascending cooler air stream so that thestreams of ammonium nitrate break up into many small spherical particles which solidify on falling through the countercurrent cool air to form spherical clusters of ammonium nitrate crystals which are known as prills in the art.