![]() ![]() The phosphate and sulfate contents were determined as P 2O 5 and SO 3, respectively.Ĭhemically pure ammonium salts were used. (If no crystals had formed, then seed crystals were added and the mixtures were allowed to settle for another 7 days.) Total nitrogen content in the saturated solutions was determined by chemical analysis. The bottles were allowed to settle at a given temperature for 7 days. Mixtures of NH 4H 2PO 4, (NH 4) 2HPO 4, (NH 4) 2SO 4 and water were placed in glass-stoppered bottles and heated on a water bath at 90 ☌. The compilers have used the data in Part 1 to calculate the following values. The amount of nitrogen in (NH 4) 2SO 4 is not included in the ratio nN 1/ n p.Įxperimental Data: (Notes on the Nomenclature)Ĭomposition of saturated solutions in the NH 4H 2PO 4-(NH 4) 2HPO 4-(NH 4) 2SO 4-H 2O system. M = n N1/ n p where nN 1 is the amount of nitrogen in NH 4H 2PO 4 and (NH 4) 2HPO 4, and n p is the amount of the phosphate. S/(g/100g soln) = ≧.76(1 - M)A/(5.76 + M)Ī is the sum of solubilities of NH 4H 2PO 4 and (NH 4) 2HPO 4 in the ternary system NH 4H 2PO 4-(NH 4) 2HPO 4-H 2O for a given value of M. Minagawa, S., Nippon Dojo Hiryogaku Zasshi 49, 243 (1978).Ĭoncentration = Composition at 0 ✬, 25 ✬ and 50 ✬Ĭomments and Additional Data: The solubilities of NH 4H 2PO 4 and (NH 4) 2HPO 4 in the quaternary system NH 4H 2PO 4-(NH 4) 2HPO 4-(NH 4) 2SO 4-H 2O in the range of N/PO 4 = 1.0 to 2.0 may be calculated from eqs and, respectively. (4) Water H2O NIST Chemistry WebBook for detailĪkiyama, T. (3) Sulfuric acid H2SO4 NIST Chemistry WebBook for detail Learn more about drinking water in Charlotte, Mecklenburg County, Pineville, Matthews, Mint Hill, Davidson, Cornelius, and Huntersville. (2) Phosphoric acid H3PO4 NIST Chemistry WebBook for detail (1) Ammonia NH3 NIST Chemistry WebBook for detail Ammonia with Phosphoric acid, Sulfuric acid and Water ![]()
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