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The use of Sodium Hypobromite for the Oxidation of Organic Matter in the Mechanical Analysis of Soils

Published online by Cambridge University Press:  27 March 2009

Erik Troell
Erik Troell
Affiliation:
Chemistry Department, Rothamsted Experimental Station, Harpenden.
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Extract

1. The use of freshly prepared solutions of sodium hypobromite instead of boiling hydrogen peroxide solutions in the pretreatment of soils for mechanical analysis by the pipette method has the following advantages:

(a) Soils containing manganese dioxide or large amounts of organic matter may be oxidised rapidly without heat, whereas oxidation of such soils by hydrogen peroxide is a tedious operation requiring large amounts of reagent.

(b) Possible changes in the clay through heating and the dissolution of considerable amounts of sesquioxides are avoided.

(c) The reagents are cheaper and more stable, especially in the tropics.

(d) It makes possible further simplification in the technique of mechanical analysis.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 21 , Issue 3 , July 1931 , pp. 476 - 483
Copyright
Copyright © Cambridge University Press 1931

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References

REFERENCES

(1)U.S. Dept. Agric. Tech. Bull. (1930), 170.Google Scholar
(2)Intern. Mitt. Bodenk. (1912), 7, 315.Google Scholar
(3)Mem. Dept. Agric. Ind. Chem. Series (1929), 10, 209.Google Scholar
(4)Proc. Second Intern. Soil Congress, Leningrad (1930) (in the press).Google Scholar