Solution composition for extracting available phosphate, available silicate and cation exchange in soil
AssigneeAndong National University Industry-Academic Cooperation Foundation
InventorKeon Sang Ryoo
Life of this patent
Estimating the term…
Abstract
Disclosed is a leaching solution composition for extracting available phosphate in soil, the composition including 100 parts by weight of a leaching solution containing acetic acid, lactic acid, ammonium fluoride, ammonium sulfate, and sodium hydroxide, of which the weights are 110% of the weights of constituent ingredients of a leaching solution for extracting available phosphate in soil, used in the Lancaster method and 0.001 parts by weight of a bromocresol green indicator.
Claims3
A leaching solution composition for extracting available phosphate in soil, the composition comprising:
- 100 parts by weight of a leaching solution containing acetic acid, lactic acid, ammonium fluoride, ammonium sulfate, and sodium hydroxide, of which the weights are 110% of the weights of acetic acid, lactic acid, ammonium fluoride, ammonium sulfate, and sodium hydroxide, respectively, contained in a leaching solution for extracting available phosphate in soil, used in the Lancaster method;
- and
- 0.001 parts by weight of a bromocresol green indicator.
A leaching solution composition for extracting available silicate in soil, the composition comprising:
- 100 parts by weight of a leaching solution containing sodium acetate and acetic acid, of which the weights are 110 wt % of the weights of sodium acetate and acetic acid, respectively, contained in a leaching solution for extracting available silicate in soil, used in the 1N-NaOAc method;
- and
- 0.001 parts by weight of a methyl orange indicator.
A leaching solution composition for extracting exchangeable cations in soil, the composition comprising:
- 100 parts by weight of a leaching solution containing ammonium hydroxide and acetic acid, of which the weights are 110% of the weights of ammonium hydroxide and acetic acid, respectively, contained in a leaching solution for extracting exchangeable cations in soil, used in an ammonium acetate method in cation exchange capacity (CEC) analysis;
- 0.001 parts by weight of a phenolphthalein indicator;
- and
- 0.001 parts by weight of a bromocresol purple indicator.
Dependencies are inferred from the claim text.