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Iron - Ferrous sulfate is used as a color changer, especially for cotton, rayon, hemp and linen. Use 1%-2% wog. Ferrous sulfate can be combined with sodium acetate to form ferrous acetate, a safer form of iron to use with silk and wool. The Earthues ferrous sulfate is 99+ Purity Grade.
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🇺🇸 Ship from USA · On Agora since 2026
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