Determination of boron soluble in acid in fertilizers

Authors

  • J. C. Alcarde Escola Superior de Agricultura Luiz de Queiroz; Departamento de Química
  • R. A. Catani Escola Superior de Agricultura Luiz de Queiroz; Departamento de Química
  • O. S. Souza Escola Superior de Agricultura Luiz de Queiroz; Departamento de Química

DOI:

https://doi.org/10.1590/S0071-12761972000100021

Abstract

For the determination of boron soluble in acid, in fertilizers, 6,0 g of mannitol are sufficient. The influence of the ion NH4+ is eliminated by boiling the alkaly solution for 30 minutes. The sulfate ion affect the phosphate precipitation with Pb2+, beeing necessary 1 ml of 10% Pb (NO3)2 solution for each 1% of P2O5 of the sample. The method presents suitable precision and accuracy.

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Published

1972-01-01

Issue

Vol. 29 (1972)

Section

naodefinida

How to Cite

Alcarde, J. C., Catani, R. A., & Souza, O. S. (1972). Determination of boron soluble in acid in fertilizers . Anais Da Escola Superior De Agricultura Luiz De Queiroz, 29, 285-296. https://doi.org/10.1590/S0071-12761972000100021