| Method of analysis of Citric Acid |
| 1.0 PROCEDURE 1.1 Sampling Quantity: 10 gm 1.2 Description: Colorless crystals or a white powder, slightly hygroscopic in moist air. Pour about 2.0 g of sample in a clean dry Petri dish and observe with unaided eye observed against specification. To read this GTP Click here Preparation and Standardization of 0.1M Ceric Ammonium Sulphate. 1.2.1 Determined Assay : By Titrimetric (95.0% to 105% on such basis) Weight accurately about 2.0 gm and dissolve in 100 ml of water, titrate with 1 M sodium hydroxide using 0.5 ml of phenolphthalein solution as indicator. 1.0 ml of 1M sodium hydroxide(NaOH) is equivalent to 0.06403 gm of citric acid. Purity of citric acid = Vol. consume of 1Mol NaOH x Factor x Actual Molarity x 100 / Sample wt. x Stated Molarity |
