| 摘要 |
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 glycerin, iodine, and iodide ion. Preferably, the concentrates further include one or more additives such as compatible wetting agents, hydrotropes, thickening agents, additional emollients and buffering systems. The quantities of iodide ion and iodine are such that the ratio of iodide ion to iodine is from about 0.5:1 to about 6:1. 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 which dramatically increase in diluted use solutions to values which are from about 2 to about 300 times greater than the free iodine in the concentrates.
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