Re: water purification/Lugol's
Here's some info on water purification & iodine:
http://panaminstitute.com/de-iodine.htm
Disinfecting Contact Times
WATER CLARITY WATER TEMPERATURE
5 °C 15 °C
Clear
30 min
15 min
Cloudy
60 min
30 min
NOTES:
- final drinking concentrations calculated at 8 mg iodine/liter
- measure with a tuberculin syringe or dropper: 1 drop = 0.05 ml
- In general, if you are in a hurry double the chemical dose and
halve the contact time; if you want better flavor halve the dose and
double the contact time.
- If you believe the water may be heavily contaminated, double the
chemical dose or double the contact time.
-
Iodine Topical Solution and
Iodine Tincture also contain 2.4%
sodium iodide,
Lugol's Solution also contains 10% potassium iodide,
increasing the dose of
Iodine ingested.
- Povidone is a non-toxic polymer that binds the iodine and allows
higher concentrations in a water-based solution. This complex
system provides a sustained-release reservoir of free iodine, and
makes calculation of the "strength" of the solution difficult.
- A system comprising iodine crystals in plain water is available,
and works well. It lasts an extremely long time. I have not shown it
here because the amount of iodine dissolved in the water is highly
temperature-dependent, and this is problematic in the universally
cold environment of the Himalaya.
- Addition of a small amount of vitamin C (50 mg) to your water
after the contact time with the iodine will render the water nearly
flavorless!
We also had a resource(lost in the recent meltdown) that advised putting iodine directly on an insect bite. Sorry I don't have more info than that... :)