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systematic analysis of a simple salt? in 12 salt |
Test for the chloride ion : Place 6 drops of the solution in a test tube, acidify with 3 M HNO3 [A-6], and add a drop of 0.2 M AgN03 [salts rack]. A white, curdy precipitate (AgCl) proves the presence of chlorides. Sodium Ions: The most common method of identification of Na+ is the flame test. Sodium imparts a brilliant, long lasting, yellow flame that masks colors from other ions. The test may be performed on a small sample of the unknown treated with concentrated HCl or a few drops of solution unknown treated with concentrated HCl. |