Summary
It was shown that a solution of ferric chloride (0·08 N) could be satisfactorily employed as a permanent standard in the colourimetric estimation of nitrate by the α-naphthol sulphonic acid method. The close resemblance of the colours of the ferric chloride and the corresponding standard nitrate solution was established by analysing them making use of the Keuffel and Esser colour analyser.
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References
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Narasimha Murty,Proc. Ind. Acad. Sci., 1938,7, 108.
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(Communicated by Prof. T. R. Seshadri)
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Murty, G.V.L.N. Ferric chloride as a permanent standard in the colourimetric estimation of nitrate. Proc. Indian Acad. Sci. (Math. Sci.) 13, 116–118 (1941). https://doi.org/10.1007/BF03048821
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DOI: https://doi.org/10.1007/BF03048821