Skip to content

Please be aware that some material may contain words, descriptions or illustrations which will not reflect current scientific understanding and may be considered in today's context inaccurate, unethical, offensive or distressing.


Browne tries the method of creating Prussian blue (see CLP/11ii/2) and deduces that the volume of oil of vitriol [sulphuric acid] used in production of the dye impacts the shade of blue, as does the amount of iron in the solution. This is the first part of Browne's paper, focusing on the role of sulphuric acid, published in Philosophical Transactions. The second part is found at CLP/11ii/4.

Subject: Chemistry

Published in Philosophical Transactions as 'Observation and experiments upon the foregoing preparation'.

Sent to Doctor [James] Jurin. Read to the Royal Society on 2 April 1724.

Reference number
Earliest possible date
Physical description
Ink on paper
Page extent
6 pages

Creator name

John Browne

View page for John Browne

Use this record


John Browne, Paper, 'Experiments for making the Prussian blue' by Mr [John] Brown [Browne], 1724, CLP/11ii/3, The Royal Society Archives, London,, accessed on 24 July 2024

Link to this record

Embed this record

<iframe src="" title="Paper, 'Experiments for making the Prussian blue' by Mr [John] Brown [Browne]" allow="fullscreen" frameborder="0" width="100%" height="500px"></iframe>

Related Publications


This item is part of:

Related Fellows

Explore the collection

  • Classified Papers

    Dates: 1592-1741

    The 'Classified Papers' of the Royal Society are papers from British and international natural philosophers and scholars categorised according to subject areas.

    View collection