Letter | Published:

Ozone

Nature volume 23, page 125 | Download Citation

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Abstract

IF a slip of the prepared paper, used for testing for atmospheric ozone, be carefully moistened on one side with alcohol, using a clean camel-hair brush, on burning off the spirit and immersing the slip of paper in water the paper changes to a deep purple colour, as deep as No. 8 in Negretti and Zambra's scale of colours for ozone.

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  1. Leicester, December 5

    • J. P.

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DOI

https://doi.org/10.1038/023125d0

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