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Citation: Liao Xiaoyuan, Liu Fang, Liu Zenghui. PREPARATION OF SODIUM NITRATE FROM COMMON SALT AND AMMONIUM NITRATE BY DOUBLE DECOMPOSITION TRANSFORMATION[J]. Chinese Journal of Applied Chemistry, ;1992, 9(1): 72-75. shu

PREPARATION OF SODIUM NITRATE FROM COMMON SALT AND AMMONIUM NITRATE BY DOUBLE DECOMPOSITION TRANSFORMATION

1.
Institute of Applied Technology, Wuhan University, Wuhan 430072

Corresponding author: Liao Xiaoyuan,
Received Date: 4 September 1990
Available Online: 3 April 1991

In order to find an economical way to prepare sodium nitrate studies have been carried out on the reciprocal system Na⁺-NH₄⁺-Cl^--NO₃^--H₂O.Though the salt-pair of NaNO₃-NH₄Cl is a stable one,as the phase diagram shows, it is difficult to obtain pure NaNO₃ and NH₄Cl from it,for the solubilities of NaNO₃ and NH₄Cl vary with temperature almost in the same extent. A certain sort of optimum conditions has been approached at which the crystal of NaNO₃ is more heavy with that of NH₄Cl suspending in the solution, thus NaNO₃ can be easily separated from NH₄Cl.
- sodium nitrate,
- common salt,
- double decomposition
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