formaldahyde question

[bluestone]

does any one know about formalin?
i have some clay and a friend made some soap with it .
She tested it and it has 2% formalin in it. she used very little clay in the soap, but it seems like there was a lot of formalin in it.
would it have come from the clay?

 

[schomisch]

http://en.wikipedia.org/wiki/Formaldehyde

~Chris!~