Preparation of Sulphuric Acid free from Nitric Acid

Article metrics

Abstract

FOR the analysis of the nitrate content of sea water, and for certain tests on alkaloids, it is necessary to have sulphuric acid free from all but the most minute amounts of nitric acid. After testing a number of British and foreign samples of pure sulphuric acid, Harvey1 reported that he had found the ‘nitrogen free’ sulphuric acid specially supplied by the British Drug Houses, Ltd., to be satisfactory, though the ‘analytical reagent’ acid was not so. Even in the purest acid the reduced strychnine reagent of Denigès demonstrated the presence of nitric acid, which was estimated by extrapolation after adding known amounts of nitrate, reckoned as milligrams of nitrate nitrogen per cubic metre of sea water.

Access options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

References

  1. 1

    Jour. Marine Biol. Assoc., 14, 72; 1926.

  2. 2

    Jour. Chem. Soc., 105, 1157; 1914.

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article

Cite this article

ATKINS, W. Preparation of Sulphuric Acid free from Nitric Acid. Nature 129, 98 (1932) doi:10.1038/129098a0

Download citation

Further reading

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.