Verification of iron(III) with thiocyanate
Iron(III) chloride solution Xn R 22-38-41 S 26-39
potassium thiocyanate Xn R 20/21/22-30 S 13
- Dissolve in a test tube one spatula-tipful of potassium cyanide in approx. 1 ml water.
- Add 2-3 drops of iron(III) chloride solution. A deep, blood-red color results.
- The diluted solution can be discharged into the drainage.
An intense colored iron(III) thiocyanate arises. In this manner one can verify iron(III) as well as thiocyanate. In the case of pure iron(II) there is no coloration.
Iron(III) solution after the addition of thiocyanate
Execution of experiment 1847 S,"Kaliumrhodanid ", p. 322,