Stable glycerin iodine concentrate compositions
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United States of America Patent
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Mar 23, 1999
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app pub date -
Apr 2, 1997
filing date -
Apr 2, 1997
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Abstract
Stable aqueous glycerin iodine concentrates are provided which are adapted for dilution in water to yield germicidal iodine use solutions. The concentrates include from about 30-87% by weight glycerin, from about 0.15-15% by weight iodine, from about 0.15-15% by weight iodide ion, and one or more additives such as compatible wetting agents, hydrotropes, thickening agents, additional emollients and buffering systems. The concentrates are stable for a period of at least about 3 months at room temperature and are dilutable at a ratio of 1 part concentrate with from about 2-80 parts water. The concentrates can be formulated to give very low free iodine values as concentrates, but provide dramatically increased free iodine values as diluted use solutions.
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