John Browne or Brown (died 1735) was an English chemist, elected

Fellow of the Royal Society Fellowship of the Royal Society (FRS, ForMemRS and HonFRS) is an award granted by the judges of the Royal Society of London to individuals who have made a "substantial contribution to the improvement of natural science, natural knowledge, incl ...

in 1721. His father John Browne of London was an apothecary, and Browne joined the

Society of Apothecaries The Worshipful Society of Apothecaries of London is one of the livery companies of the City of London. It is one of the largest livery companies (with over 1,600 members in 2012) and ranks 58th in their order of precedence. The society is a m ...

in 1697. He discovered the presence of magnesia in sea-water, and researched the manufacture of

Prussian blue Prussian blue (also known as Berlin blue, Brandenburg blue or, in painting, Parisian or Paris blue) is a dark blue pigment produced by oxidation of ferrous ferrocyanide salts. It has the chemical formula Fe CN)">Cyanide.html" ;"title="e(Cyanid ...

(invented by

Johann Jacob Diesbach Johann Jacob Diesbach () (born around 1670 – died in 1748), also written as Johann Jacob von Diesbach, was a Swiss pigment and dye producer known for first synthesizing a blue pigment known as Prussian blue (i.e. iron blue or Berlin blue). Bio ...

, in 1706), publishing on these topics in the ''

Philosophical Transactions ''Philosophical Transactions of the Royal Society'' is a scientific journal published by the Royal Society. In its earliest days, it was a private venture of the Royal Society's secretary. It was established in 1665, making it the first journa ...

''.

Notes

{{DEFAULTSORT:Browne, John Year of birth missing 1735 deaths English chemists Fellows of the Royal Society English apothecaries Freemasons of the Premier Grand Lodge of England 18th-century British pharmacists