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Charles Tennant (1768-1838), Manufacturing chemist

Sitter in 5 portraits
Tenant was initially apprenticed to a handloom weaver in Kilbarchan in Scotland. The bleaching of cloth was an important aspect of the weaving industry; after studying bleaching methods Tennant took out a patent in 1799 to manufacture bleaching powder by passing chlorine over slaked lime. He subsequently moved to St Rollox, near Glasgow, where with his partners he established a factory to produce the powder commercially. Soda ash and other alkali products were also made, and St Rollox eventually grew into one of Europe's largest chemical works.

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1075

Men of Science Living in 1807-8

by Sir John Gilbert, and Frederick John Skill, and William Walker, and Elizabeth Walker (née Reynolds)
pencil and wash, 1858-1862
NPG 1075

1075a

Engraving after 'Men of Science Living in 1807-8'

by George Zobel, and William Walker
engraving, 1862
NPG 1075a

D40516

Charles Tennant

by John George Murray, after Andrew Geddes
mezzotint, (1830s)
NPG D40516

D40517

Charles Tennant

by John George Murray, after Andrew Geddes
mezzotint, (1830s)
NPG D40517