Iron (ferrous sulfate heptahydrate)
$ 1.26
Price is per ounce. Iron (ferrous sulfate heptahydrate) is used as a color changer, darkening protein or cellulose fibers. It can harshen the hand of protein fibers, so use sparingly, at no more than 4% on weight of goods. It can be used either during mordanting, in a post-dye bath, or in any application where a color change is needed.


Sumac Gallic Tannin extract
Fine Silk 70%/Cotton 30% – T07