The History Products And Processes of the Alkali Trade Including the Most Rec
The History Products And Processes of the Alkali Trade Including the Most Rec
Charles Thomas Kingzett
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Hitherto, for most purposes, these liquors were car- bonated, and a further quantity of soda ash obtained from them. But Deacon has recently called attention to the following extract from the specification of a patent granted to Mr. George Brown, of the firm of Messrs. Charles Tennant and Co. , of St. Eollox, and dated Feb- ruary 20, 1845 : ' Eed liquor ... Is brought into a metal pan, and is evaporated to about the consistency of tar ; the proper quantity of nitrate of soda is then added, and ...heat applied to expel the remaining water and flux the mass, ' etc. This would seem to indicate that even be- fore Mr. Gossage made caustic soda in this way it had been made by Tennant and Co. , while still less credit there- fore belongs to those various other firms which have laid claim to the invention. In short, it was one of those pro- gressive inventions to which no one individual can lay HISTORICAL NOTES ON CAUSTIC SODA. 119 sole claim, but in which many have a share. Amongst these latter, besides those enumerated, come Mr.
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