{"product_id":"ferrous-sulphate-iron","title":"Ferrous Sulphate (Iron)","description":"\u003ch3\u003eFerrous Sulphate – for shifting and deepening colour\u003c\/h3\u003e\n\u003cp\u003eFerrous Sulphate (iron) is used in natural dyeing to modify colour. It works as a saddening agent, darkening tones and shifting colours towards greys, greens and deeper, more muted shades.\u003c\/p\u003e\n\u003cp\u003eIt is commonly used after dyeing as a separate bath, or added in small amounts to a dye pot to alter the final result. A little goes a long way.\u003c\/p\u003e\n\u003cp\u003eFerrous Sulphate can also be used in combination with tannin and alum when mordanting plant fibres, particularly where darker tones are desired.\u003c\/p\u003e\n\u003ch4\u003eSuitable for\u003c\/h4\u003e\n\u003cp\u003eSilk, wool, cotton, linen and other plant-based fibres\u003c\/p\u003e\n\u003ch4\u003eWhy use it\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDarkens and mutes colour\u003c\/li\u003e\n\u003cli\u003eShifts yellows to olive, reds to plum, and brights to greys\u003c\/li\u003e\n\u003cli\u003eExpands your colour range from a single dye source\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eUsage guide (WOF)\u003c\/h4\u003e\n\u003cp\u003e0.5–2% WOF for colour modification; up to 4% WOF for stronger darkening (use lower rates on silk and wool)\u003c\/p\u003e\n\u003ch4\u003eUse with care\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eAlways use in low concentrations\u003c\/li\u003e\n\u003cli\u003eOveruse can weaken fibres, especially protein fibres like silk and wool\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA useful addition for natural dyers wanting more control over tone and depth.\u003c\/p\u003e","brand":"SilkWholesalers","offers":[{"title":"100 grams","offer_id":47661737672891,"sku":"38223","price":7.5,"currency_code":"AUD","in_stock":true},{"title":"250 grams","offer_id":47661737705659,"sku":"38224","price":13.5,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/3791\/9163\/files\/Ferrous_Sulphate_Iron.jpg?v=1786178111","url":"https:\/\/silkwholesalers.com.au\/products\/ferrous-sulphate-iron","provider":"SilkWholesalers","version":"1.0","type":"link"}