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IX0120-100GR IX0120-100G IX0120-500G IX0120-25G IX0120-25GR IX0120-PK/4
CAS Number: 7553-56-2
Formula Weight: 253.80
Formula: I2
Hazard Info: Corrosive, Irritant, Toxic
Density (g/mL): 4.93
Boiling Point (°C): 184
Freezing Point (°C): 113.5
Solubility: Common Organic Solvents
Shelf Life (months): 12
Storage: White

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.



Item # Description Grade Size Chemical/Physical Specifications Unit Availability Price Quantity
470301-348 Iodine, Resublimed
Reagent 25 g Crystal Each (25g) Retrieving Restricted
470301-508 Iodine, Resublimed
Hazardous Product
Reagent 100 g Crystal Each (100g) Retrieving Restricted
470301-344 Iodine, Resublimed
Hazardous Product
Reagent 500 g Crystal Each (500g) Retrieving Restricted
470301-342 Iodine, Resublimed
Laboratory 25 g Crystal Each (25g) Retrieving Restricted
470301-338 Iodine, Resublimed
Laboratory 4 x 25 g Crystal Pack of 4 (100g) Retrieving Restricted
470301-340 Iodine, Resublimed
Hazardous Product
Laboratory 100 g Crystal Each (100g) Retrieving Restricted
restricted This product is marked as restricted and can only be purchased by approved Shipping Accounts. To apply for a shipping account number, click here. If you need further assistance, call Customer Service at 1-800-727-4368 or email


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. Add a small amount of sodium carbonate to the mixture to dissolve all of the iodine.
 3. Let the reaction come to completion over the course of an hour.
 4. Neutralize the solution with either dilute sodium hydroxide or dilute sulfuric acid to about a pH of 7 if necessary.
 5. Pour the final solution down the drain with at least a 20-fold excess of water.


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