Ferrous sulphate (ferrous sulfate) is used as a mordant or modifier to shift colors to greys, blacks and also to produce darker shades of other natural colors. It should be used in very small quantities to ensure protection of fiber from breakage.
Content: Ferrous Sulphate
Storage: Store in dry, cool place away from light.
Caution: Chemicals act as irritant and is toxic in varying quantities. Please refer to MSDS supplied along with this product to understand safe usage. Store safely and away from pets and children. Use responsibly, do not throw out the mordant bath but re-use by replenishing as required.
For your study of natural colors:
WILD COLOR by Jenny Dean is a marvelous book to kick start one's study of natural dye techniques and color palettes.
BRILLIANT COLOURS by Cheryl Kolander, doyen of natural dyeing, is another book of interest if one is interested in developing a very personal connection with natural colors.
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