SDS Volume

Volume 66. Ammonium Phosphates, p None

Source Publication

Syromyatnikova, M. N.; Torocheshnikov, A. B.; Kuznetsova, Zh. Prikl. Khim. 52, 568 (1979).

Conditions:

Room Temp: Composition at 0 °C, 10 °C, 20 °C and 30 °C. °C

Compiler:

J. Eysseltová

Methodology:

The isothermal method was used. Mixtures were prepared in 100 mL glass vessels by adding solid $\ce{NH4H2PO4}$ to saturated solutionsns of $\ce{K2CO3}$ and by adding solid $\ce{K2CO3}$ to saturated solutions of $\ce{NH4H2PO4}$. The mixtures were placed in a water thermostat and agitated for 3.5 hrs. The phases were separated from each other by filtration. The liquid phase was analyzed for ammonia, [1] phosphate ion [2] and potassium [2]. The identity of the solid phase was determined by X-ray analysis.

Sample Information:

1. Pure $\ce{K2CO3}$ and reagent grade $\ce{NH4H2PO4}$ were used.

Measurement Errors:

Ambient temperature: The temperature was controlled to within ±0.05 K.
Mass concentration (m/v) (1): No information given.

Methodology Citations

¹ Shokin, I. N.; Krasheninikov, S. A.; et al. Tekhnicheskiy Analiz i Kontrol' v Proizvodstve Neorganicheskikh Veshchestv, Izd. Vysshaya Shkola, Moscow 1968.
² Kel'man, F. N.; Bruckus, E. B.; Osherovich, R. F.; Metody Analiza pri Kontrole Proizvodstva Sernoy Kisloty i Fosfornykh Udobreniy, Goskhimizdat, Moscow (1963).