Tincture of iodine

Description

An alcoholic solution containing 7% Iodine and 5% iodide potassium iodide. Tincture of iodine is a reddish brown liquid that is used as an antiseptic and as a reagent for the detection of Starch.

Synonyms and Related Terms

Jodtinktur (Deut.)

Risks

• Toxic by ingestion.
• Skin contact causes irritation.
• ThermoFisher: [https://beta-static.fishersci.com/content/dam/fishersci/en_US/documents/programs/education/regulatory-documents/sds/chemicals/chemicals-i/S25944.pdf SDS}

Physical and Chemical Properties

Solution: Add 70g iodine and 50 g potassium iodide to 50 ml water. Dilute to 1 liter with ethanol.

Resources and Citations

• G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 417

• Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993

• CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: Solution: To 50 ml water add 70g I2 and 50 g KI to 50 ml water. Dilute to 1 liter with alcohol.