. Dairy chemistry; a practical handbook for dairy chemists and others having control of dairies. Agricultural chemistry; Milk. 224. Fiff 23 —Automatic Burette. burette is automatically filled to the zero point. When the tap is turned the liquid runs out, air bubbling in from the stock bottle, and measured quantities may be taken. After the liquid has been run out as far as desired, the tap is turned, and the liquid enters the burette. The liquid in the air chamber is forced back into the stock bottle, and the burette automatically fills itself. The burette can be made of 9 capacity, but i
. Dairy chemistry; a practical handbook for dairy chemists and others having control of dairies. Agricultural chemistry; Milk. 224. Fiff 23 —Automatic Burette. burette is automatically filled to the zero point. When the tap is turned the liquid runs out, air bubbling in from the stock bottle, and measured quantities may be taken. After the liquid has been run out as far as desired, the tap is turned, and the liquid enters the burette. The liquid in the air chamber is forced back into the stock bottle, and the burette automatically fills itself. The burette can be made of 9 capacity, but it is much quicker to employ a graduated burette of much larger capacity than any form of automatic measur- ing apparatus. The advantages claimed for the burette are— (1) Automatic filling to zero point. (2) One turn of the tap only- required to fill and to measure. (3) Impossibility of spilling corrosive liquids. (4) Saving of time, as the filling is done while other operations are conducted. Chemicals. — Commer- cial sulphuric acid con- taining 96 per cent. HgSOj, which has a specific gravity of 1-842 at 15-5° C. (60° F.). Owing to the fact that strong sulphuric acid has a somewhat anomalous specific gravity, it is not advisable to test the specific gravity directly. The fol- lowing test will give good. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Richmond, Henry Droop. London, C. Griffin & Company, Limited
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectagriculturalchemistr
