 | Henry Clapp Sherman - Analytical chemistry - 1912 - 442 pages
...(no reduction will take place in the cold). Now add 50 cc. of 50 per cent sulphuric acid (by volume) and immerse the vessel in boiling water for two hours...protected from dust and organic vapors, such as alcohol, until the titration is completed. Add from a weighing bottle a slight excess of the ferrous ammonium... | |
 | Edward Richards Bolton, Cecil Revis - Food - 1913 - 474 pages
...dissolved (no reduction will take place). Now add 50 cc of 50 per cent. sulphm-ic acid (by volume) iind immerse the vessel in boiling water for two hours and keep protected from dust and organic vapours, such as alcohol, till the titration is completed. Add from a weighing bottle a slight excess... | |
 | Alfred Henry Allen - 1917 - 864 pages
...boiling water for 2 hours and keep protected from dust and organic vapours, such as alcohol, until the titration is completed. Add from a weighing bottle...potassium ferricyanide (f). Titrate back with the dilute dichromate. From the amount of dichromate reduced calculate the percentage of glycerol. i grm. glycerol... | |
 | Alfred Henry Allen - Analytical chemistry - 1917 - 864 pages
...boiling water for 2 hours and keep protected from dust and organic vapours, such as alcohol, until the titration is completed. Add from a weighing bottle...a porcelain plate with the potassium ferricyanide (/"). Titrate back with the dilute dichromate. From the amount of dichromate reduced calculate the... | |
 | Alfred Henry Allen - 1917 - 864 pages
...boiling water for 2 hours and keep protected from dust and organic vapours, such as alcohol, until the titration is completed. Add from a weighing bottle...a porcelain plate with the potassium ferricyanide (/). Titrate back with the dilute dichromate. From the amount of dichromate reduced calculate the percentage... | |
 | George Fenwick Pickering - Oils and fats - 1917 - 188 pages
...is dissolved (no reduction will take place). Now add 50 cc of 50 per cent. (by vol.) sulphuric acid, and immerse the vessel in boiling water for two hours, and keep protected from dust and organic vapours, such as alcohol, till the titration is completed ; add from a weighing bottle a slight excess... | |
 | Henry Clapp Sherman - Analytical chemistry - 1919 - 440 pages
...(no reduction will take place in the cold). Now add 50 cc. of 50 per cent sulphuric acid (by volume) and immerse the vessel in boiling water for two hours...protected from dust and organic vapors, such as alcohol, until the titration is completed. Add from a weighing bottle a slight excess of the ferrous ammonium... | |
 | Percival John Fryer, Frank Edwin Weston - Oils and fats - 1920 - 344 pages
...dissolved (no reduction will take place). 5. Now add 50 cc of 50 per cent. sulphuric acid (by volume) and immerse the vessel in boiling water for two hours, and keep protected from dust and organic vapours, such as alcohol, till the titration is completed. 6. Add from a weighing bottle a slight excess... | |
 | Roger Castle Griffin - Analytical chemistry - 1921 - 696 pages
...bichromate is dissolved. (No reduction will take place in the cold.) Add 50 cc. of 50% (by volume) H2SQt, immerse the vessel in boiling water for two hours...protected from dust and organic vapors, such as alcohol, until the titration is completed. Add from a weighing bottle a slight excess of the ferrous ammonium... | |
 | Thomas Edward Thorpe - Chemistry, Technical - 1922 - 752 pages
...dichromate is dissolved (no reduction will take place). ' Now add 50 cc of 50 pc sulphuric aeid [by volume), and immerse the vessel in boiling water for two hours, and keep protected from dust and organic vapours, such as alcohol, until the titration is completed. Add from a weighing-bottle a slight excess... | |
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Now add 50 cc. of 50 per cent, sulphuric acid (by vol161 ume) and immerse the vessel in boiling water for two hours and keep protected from dust and organic vapors, such as alcohol, till the titration is completed. 
