The Chemistry of Foods: Tea, coffee, cocoa, sugar, etc Committee of Council on Education, 1881 - Food |
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Page 10
... Magnesia " " ,, Mgo 2'12 4.87 4.65 3'19 2'42 6'48 6.52 Phosphoric Anhydride P2O 14'II 14.68 14'11 18'54 12.69 14'74 16.15 Sulphuric Carbonic ... SO 3 6'52 6'54 6'34 6.38 5'39 5.83 6.68 ... : CO2 11'73 9'58 12.67 13 ° 42 9'97 13'20 9'94 ...
... Magnesia " " ,, Mgo 2'12 4.87 4.65 3'19 2'42 6'48 6.52 Phosphoric Anhydride P2O 14'II 14.68 14'11 18'54 12.69 14'74 16.15 Sulphuric Carbonic ... SO 3 6'52 6'54 6'34 6.38 5'39 5.83 6.68 ... : CO2 11'73 9'58 12.67 13 ° 42 9'97 13'20 9'94 ...
Page 16
... magnesia and 8 ounces of strong alcohol , and filtered . The boiling is repeated with a like amount of alcohol , and subsequently three times with distilled water , filtering after each operation . The alcohol is recovered by ...
... magnesia and 8 ounces of strong alcohol , and filtered . The boiling is repeated with a like amount of alcohol , and subsequently three times with distilled water , filtering after each operation . The alcohol is recovered by ...
Page 17
... magnesia , and completely exhausted with pure hot benzol . On distillation , or evaporation of the benzol , the theine is left in a crystalline and almost colourless state . Second Method . - One hundred grains of dried tea are reduced ...
... magnesia , and completely exhausted with pure hot benzol . On distillation , or evaporation of the benzol , the theine is left in a crystalline and almost colourless state . Second Method . - One hundred grains of dried tea are reduced ...
Page 22
... magnesia , French chalk , and sulphate of lime ; and , when made to represent black tea , the leaves were slightly coloured with Dutch pink to impart a bloom . The sophistication of teas imported from China has most fre- quently ...
... magnesia , French chalk , and sulphate of lime ; and , when made to represent black tea , the leaves were slightly coloured with Dutch pink to impart a bloom . The sophistication of teas imported from China has most fre- quently ...
Page 32
... magnesia , requires to be decomposed by fusion with alkaline carbonate ; the resulting product is examined for silica and magnesia in the usual way . China Clay . - If , after fusion , alumina were found , and no magnesia , the presence ...
... magnesia , requires to be decomposed by fusion with alkaline carbonate ; the resulting product is examined for silica and magnesia in the usual way . China Clay . - If , after fusion , alumina were found , and no magnesia , the presence ...
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Common terms and phrases
250 cubic centimetres Acorns added adulteration albumin alcohol alkaloid analysis appearance bean benzol berries boiling water caffeic acid Caffeine cane caramel cells cellulose cent centimetres of water chemists chicory cloth cocoa cocoa nibs coffee cold water colouring matter Congou consists constituents contains copper crown 8vo crystals cubic centimetres Demy 8vo dextrin dextro-glucose dilute dissolved distilled dried estimation ether evaporated exhausted leaves Fehling's fermentation filtered filtrate glucose grains grams granules green tea husk India infusion insoluble invert-sugar kernel laticiferous laticiferous tissue leaf magnesia mangold wurzel manufacture mineral matter mixture nitrogen obtained Orange Pekoe oxide Parsnips percentage of ash portion potash powder precipitate prepared present proportion Prussian blue pure cane-sugar raw sugar removed roasted sample of coffee seeds Silica skin soluble in water solution Souchong specific gravity starch sulphuretted hydrogen sulphuric acid tannic acid tannin temperature theine theobromine Trinidad vegetable substances weight wurzel
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