This means it is only slightly harmful when dissolved in water. However, reactions with alkali metals, aluminum, mercury, fluorine or terpentine may increase the risk. Environmental risks may differ between iodine substances. The LD 50 value for rats (oral uptake) is about 14,000 mg/kg.
If you need to get it there fast, your best option is to use USPS's Priority Mail Express service! This is the fastest service offered by the USPS, with a guaranteed shipping time of 1 to 2 days, depending on the destination-or your money back!
Priority Mail Delivery Times. _Priority Mail_ is a USPS service for delivering mail that weighs between 13 ounces and 70 pounds, which has been marked as important by the sender, so that the carrier attempts to deliver it as quickly as possible. This generally takes between one to three days. The USPS website displays a map of the various mailing districts. When someone punches in their ZIP Code of origin, the map shows whether it would take the mail one day, two days or three days to arrive in that district.