Talk:Tannic acid

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I am not an expert to comment. Came here to find info. I read an article in the INternational Herald Tribune:

Into the Amazon -- a journey with a bit of comfort By Larry Rohter Published: October 12, 2007 and it asserts that:

The main concentration is on the Rio Negro, to the north and west of Manaus, where the tannic acid that darkens the water and gives the river its name inhibits mosquitoes from breeding, so visitors do not have to worry as much about malaria or dengue or other typical tropical maladies.

It is unclear where the tannic acid comes from. Could it be from the wood in the forest?

"Tannic acid is a basic ingredient in the chemical staining of wood."

Is this a poor choice of words? Or is it really basic in wood? njh 7 July 2005 09:17 (UTC)

"It is said that soaking feet in tannic acid (or strong tea) can help prevent blisters. But the use of tea for toughening skin appears to be apocryphal, inasmuch as tea is said to be incapable of tanning leather."

I'd like to see more information on this. The reference "tea does not tan leather" doesn't seem to be a very reliable source as it does not state where the information listed originated. Isaac.tanner.madsen 07:08, 6 March 2007 (UTC)