Hugh Marshall

Hugh Marshall
Professor of Chemistry, University College, Dundee
In office
1908  5 September 1913
Personal details
Born7 January 1868
Edinburgh, Scotland
Died5 September 1913(1913-09-05) (aged 45)
London, England
OccupationChemist

Hugh Marshall (7 January 1868 – 5 September 1913) was a Scottish chemist who discovered persulphates in 1891. He was the inventor of Marshall's acid. In 1902 he proposed the modified sign of equality which became standard in chemistry to represent dynamic equilibrium.