. Dairy chemistry; a practical handbook for dairy chemists and others having control of dairies. Agricultural chemistry; Milk. ESTIMATIOX OF MILK-SIâ (;AR. m Wiley-Ewell Method.âWiley and Ewell give the following method as the best for estimating milk-sugar by the polariscope :â They used a .Schmidt & Haensch polarimeter, with which HJ} of a solution of 3"2'01 gi-ammes of milk-sugar in 100 read 10() divisions of the scale. They take 65'82 grammes of milk, add 10 of acid mercuric nitrate solution (in this case the solution of mercury in nitric acid is diluted wit
. Dairy chemistry; a practical handbook for dairy chemists and others having control of dairies. Agricultural chemistry; Milk. ESTIMATIOX OF MILK-SIâ (;AR. m Wiley-Ewell Method.âWiley and Ewell give the following method as the best for estimating milk-sugar by the polariscope :â They used a .Schmidt & Haensch polarimeter, with which HJ} of a solution of 3"2'01 gi-ammes of milk-sugar in 100 read 10() divisions of the scale. They take 65'82 grammes of milk, add 10 of acid mercuric nitrate solution (in this case the solution of mercury in nitric acid is diluted with 5 volumes of water), and dilute to 100 .\ similar quantity of milk is taken, 10 of acid mercuric nitrate added and diluted to 2(K) Each of these solutions is well mixed, filtered, and polarised in a 40r) mm. Fig. (i.âPolarisL-opo. Calling the reading of the solution obtained from 100 .r, and that obtained from 200 //. the true percentage of milk- susar â . " 4(.- - y) Thi' double dilution does away with any correction for the volume of the precipitated fat and protein. The rationale of the process lies in the fact that, while the percentage of milk- sugar and the volume of the precipitate are constant, the total volume varii' 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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