Researches on Cellulose 1895-1900, Volumen1Longmans, Green, and Company, 1901 - 180 páginas |
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Página 17
... washing it was air - dried . ( b ) Wood cellulose . - Pine wood sawdust was treated by digestion for fourteen days with dilute nitric acid with addition of chlorate ( Schulze ) . The mass was washed and digested with alkaline lye ( 1-25 ...
... washing it was air - dried . ( b ) Wood cellulose . - Pine wood sawdust was treated by digestion for fourteen days with dilute nitric acid with addition of chlorate ( Schulze ) . The mass was washed and digested with alkaline lye ( 1-25 ...
Página 20
... washing - enables the zinc chloride to effect its dissolution by digestion in the cold . ( U.S. patent , 646,799 / 1900 . See also p . 59. ) Industrial applications .- ( a ) Vulcanised fibre is prepared by treating paper with four times ...
... washing - enables the zinc chloride to effect its dissolution by digestion in the cold . ( U.S. patent , 646,799 / 1900 . See also p . 59. ) Industrial applications .- ( a ) Vulcanised fibre is prepared by treating paper with four times ...
Página 21
... washing of these masses to remove the zinc salt is a very lengthy operation . To render the product waterproof the process of nitration . is sometimes superadded [ D.R.P. 3181/1878 ] . Further details of manufacture are given in Prakt ...
... washing of these masses to remove the zinc salt is a very lengthy operation . To render the product waterproof the process of nitration . is sometimes superadded [ D.R.P. 3181/1878 ] . Further details of manufacture are given in Prakt ...
Página 29
... washing , treatment with acid , and finally washing and drying , it will be found to have lost from 15 to 20 p.ct. in weight . The lower grade of celluloses thus dissolved are only in part precipitated in acidifying the alkaline ...
... washing , treatment with acid , and finally washing and drying , it will be found to have lost from 15 to 20 p.ct. in weight . The lower grade of celluloses thus dissolved are only in part precipitated in acidifying the alkaline ...
Página 46
... washing with the diluted acetone not only rendered the nitrate perfectly stable , but that the product was more stable than that obtained by the ordinary process of purification , viz . long - continued boiling and washing in water . We ...
... washing with the diluted acetone not only rendered the nitrate perfectly stable , but that the product was more stable than that obtained by the ordinary process of purification , viz . long - continued boiling and washing in water . We ...
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Términos y frases comunes
acetic acetone action alcohol aldehydic alkaline ammonia B.Sc benzoate bleached boiling C. F. CROSS carbohydrates carbon cellulose nitrates Chem chemical CHEMISTRY chlorine College collodion Coloured compounds condensation constitution cotton Cross and Bevan Crown 8vo denitration derivatives dextrose Diagrams dibenzoate digestion dilute dissolved ELEMENTARY Engineering ester ester reaction ether extract fermentation fibre fibrous furfural furfural-yielding furfuroids grms groups heating hemicellulose hexoses hydrate hydrazone hydrolysis Illustrations industrial insoluble investigation isolated jute ketoses lignocellulose lignone LL.D Lond lustra-celluloses mercerisation method molecular molecule NaOH nitric acid nitrocellulose normal cellulose numbers obtained ordinary original osazone oxidation oxidised oxycellulose p.ct paper patent pentosanes pentoses PHYSIOLOGY plant Plates PRACTICAL precipitated Professor proportion purified quantitative reagent residue Royal 8vo Science Scientific Works published silk soda soluble solution solvents starch structural substance sulphocarbonate sulphuric acid temperature thread tion tissue Tollens treated treatment Tussah viscose weight wood Woodcuts yield