Licence: In copyright
Credit: The laboratory book of dairy analysis / by H. Droop Richmond. Source: Wellcome Collection.
Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.
28/114 (page 14)
![the soluble ash add a drop or two of pheiiolphthalein solution, and titrate with ^ sulphuric acid (see AjDpendix) till the colour is discharged. Each cubic Fig. II.—Tripod, Bunsen and Desiccator. centimetre of acid indicates 0^0044 gramme CO^ as carbonates. \_Notc.—The alkalinity is not all due to carbonates, a little phosphate is present.] To the solution add a few drops of potassium chromate, and titrate with — silver nitrate solution * Tri](https://iiif.wellcomecollection.org/image/b2191980x_0028.jp2/full/800%2C/0/default.jpg)