Difference between revisions of "Royal Primrose Soap Works"

From London's Ghost Acres

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Latest revision as of 14:36, 12 May 2016

The Royal Primrose Soap Works was a Silvertown soap factory run by John Knight Ltd. The company was established in 1817 in Wapping by John Knight before his sons moved the company to Silvertown in 1880. John Knight was originally making candles when he came up with the idea to use the waste materials to make soap instead. Soap is made through a process called saponification: boiling oils or fats with an alkali, which produces the soap and glycerine. John Knight used animal waste such as the fat, bones, or hooves, and some form of lye to create soap. The company started producing their famous Royal Primrose Soap in 1844 and won an award at the 1851 Great Exhibition. Another famous product was the Knight’s Castile soap. Throughout the 20th century the company expanded into other productions involving animal waste, including glue, fertilizer, and oils.

John Knight’s Soap factory relied on cottonseed, tallow and Palm Oil sourced from Egypt, West Africa, Australasia and numerous other locations.




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Located in

West Ham


Soap, Candles, Edible Oils, Oil Cake, Glue, Glycerine

Used Raw Materials

Cotton Seeds, Tallow, Palm Oil


From To Owner
1880 1922 John Knight's Soap


From To Industry
1880 The date "{{{to_date}}}" was not understood.The date "{{{to_date}}}" was not understood. Soap, Candle and Related Fat Based Industires