Assertion: potassium iodide's iodine | /r/HasProperty | purified by sublimation
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Source sentences:
text: The final solution, which contains 30–100 grams per litre (4–13 ounces per gallon) of iodine, is treated with sulfuric acid in order to decompose any sulfite, and sulfide and manganese dioxide are added to release iodine, which is vaporized and purified by sublimation.