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What is process of purification of amoniam |
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Answer» tion:ORDER to purify AMMONIA to high purity, two basic methods are used. The OLDER ONE CONSISTS in passing gaseous ammonia containing 80 ppm of impurities under atmospheric pressure through liquid ammonia with dissolved metallic sodium. ... Ammonia with 99.99% purity was purified to a level of 10 ppm of impurities [U.S. Pat. |
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