Gram's Iodine

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IX0180-100ML IX0180-500ML IX0180-500ML IX0180-1L GG0211-100ML
470301-186EA 6.25 USD
470301-186 470233-644 470301-188 470301-184 470301-182
Gram's Iodine
Chemicals for Science Education
CAS Number: Mixture
Density: 1.0 g/mL
Boiling Point: 100 °C
Freezing Point: 0 °C
Synonyms: Iodine-Potassium Iodide Solution, IKI, Iodine-Iodine, Iodine Solution, Iodine Lugol's Dilute, and Iodine 2%
Shelf Life: 36 Months

Note: The chemical specifications for some items on this product page may differ from the specifications listed above. For more information, consult the Safety Data Sheet or contact your Ward's representative.

Delivery information: This product is designed for educational and teaching laboratories, and no certificate of analysis is available.



   
 

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Disposal

This disposal method is published for your convenience. You MUST have checked with your federal, state, and local regulations before using this method and these methods are only applicable for small laboratory sized quantities.

Use a lab apron, chemical resistant gloves and goggles before following the below method to dispose of hazardous waste.

 1. Add the substance to a twofold excess of 4% sodium thiosulfate (Na2S2O3) solution. Stir. Place the solution in a fume hood.
 2. Let the reaction come to completion over the course of an hour.
 3. Neutralize the solution with either dilute sodium hydroxide or dilute sulfuric acid to about a pH of 7 if necessary.
 4. Pour the final solution down the drain with at least a 20-fold excess of water.

Solution Prep

To prepare Gram's Iodine solution, add 7 g of potassium iodide and 3 g of iodine to 500 ml of water. Dilute to a final volume of 1 L with DI water. Iodine solutions should be stored in a dark bottle.

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