TY - JOUR AU - AB - LIME AND SULPHURIC ACID BY THE PHOTOMETRIC METHOD. BY J. I. I). HINDS. Received March 30, 1900. N this Journal, 18, 661, I gave the results of some inves- I tigations looking to the rapid determination of lime and sul- phuric acid by means of the opacity of the precipitates produced in the usual way. Since then I have had occasion to make fre- quent 'tests 'of the accuracy of the method and am able to give some interesting results. The only apparatus needed is the photometric cylinder made of glass. It is 3.5 centimeters wide and 20 centimeters high, and is graduated in centimeters and millimeters from the inside of the bottom for the convenient reading of the depth of the liquid in the cylinder. It is used with an ordinary sperm or wax candle. The cylinder is held over the lighted candle and the water containing the precipitate is poured into the cylinder until the image of the flame just disappears. The depth is read and the per cent. is calculated from the equation or read from a table. The lime is precipitated with solid calcium oxalate and the sul- phuric acid with solid barium chloride. The TI - LIME AND SULPHURIC ACID BY THE PHOTOMETRIC METHOD. JF - Journal of the American Chemical Society DO - 10.1021/ja02043a005 DA - 1900-05-01 UR - https://www.deepdyve.com/lp/unpaywall/lime-and-sulphuric-acid-by-the-photometric-method-45EN70Rgvf DP - DeepDyve ER -