{"id":3965,"date":"2014-11-24T10:32:26","date_gmt":"2014-11-24T09:32:26","guid":{"rendered":"http:\/\/www.green-ingredients.com\/?post_type=product&p=3965&lang=en"},"modified":"2025-12-09T18:04:38","modified_gmt":"2025-12-09T17:04:38","slug":"ferrous-sulfate","status":"publish","type":"product","link":"https:\/\/www.green-ingredients.com\/en\/product\/ferrous-sulfate\/","title":{"rendered":"Ferrous sulfate"},"content":{"rendered":"

Ferrous (Iron) sulfate
\n<\/strong><\/p>\n

Use :
\n<\/span><\/strong>Natural dye – mordanting and nuancing any fibers<\/span>\u00a0<\/span>:\u00a0<\/span>iron is the basis of all grey and black shades by reaction with natural tannins. In a general way, it is used to darken colours and make them deeper. It slightly improves light- and wash-fastness from those obtained with aluminum mordants. Recommended use at 1-3 % of the Weight Of Fiber (WOF). A higher % may alter the structure of proteinaceus fibers and make them breakable.<\/span><\/span><\/p>\n

For grey and black shades, we also recommend to use our extracts of\u00a0<\/span>logwood<\/a>,\u00a0<\/span>oak gallnut<\/a>,\u00a0<\/span>sumach gallnut<\/a>,\u00a0<\/span>tara<\/a>,\u00a0<\/span>acacia<\/a>. The best results will be obtained with combinations of these extracts.<\/span><\/span><\/p>\n

Also, combinations of aluminum and iron mordants or a last (very light) iron bath after a aluminum-mordanted-colour will widely increase the number of shades.<\/span><\/span><\/p>\n

Iron gall inks<\/span>: The iron sulfate is the basis of this historical ink where it is associated with tannins, in particular our very rich gallnut extracts from\u00a0<\/span>oak<\/a>\u00a0<\/span>or\u00a0<\/span>sumach<\/a>.<\/p>\n

Paintings and wood treatment<\/span><\/span><\/span>\u00a0<\/span><\/span>:<\/span>\u00a0<\/span>ferrous sulfate is used for reactions with tannins (formation of complexes) and its antifungal properties. It gives to wood tipsy finishes or darkens them according to species.
\n
\n<\/span>Other uses<\/span>\u00a0<\/span>: Gardens and lawns (antimoss).<\/p>\n

Products not intended for food.<\/span><\/span><\/span><\/p>\n

\"\"Go back to <\/span>Ingredients, mordants & additives<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Ferrous (Iron) sulfate Use : Natural dye – mordanting and nuancing any fibers\u00a0:\u00a0iron is the basis of all grey and black shades by reaction with natural tannins. In a general way, it is used to darken colours and make them deeper. It slightly improves light- and wash-fastness from those obtained with aluminum mordants. Recommended use […]<\/p>\n","protected":false},"featured_media":10828,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[67],"product_tag":[161,150,177,155,174,160,158,18,162],"class_list":{"0":"post-3965","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-ingredients","7":"product_tag-black-en-2","8":"product_tag-black","9":"product_tag-grey-en-2","10":"product_tag-grey-en","11":"product_tag-ink","12":"product_tag-mordancage-en","13":"product_tag-mordant-en","14":"product_tag-noir","15":"product_tag-shading","16":"pa_poids-1-kg-en","17":"pa_poids-500-g-en","19":"first","20":"instock","21":"taxable","22":"shipping-taxable","23":"purchasable","24":"product-type-variable","25":"has-default-attributes"},"_links":{"self":[{"href":"https:\/\/www.green-ingredients.com\/en\/wp-json\/wp\/v2\/product\/3965","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.green-ingredients.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.green-ingredients.com\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.green-ingredients.com\/en\/wp-json\/wp\/v2\/media\/10828"}],"wp:attachment":[{"href":"https:\/\/www.green-ingredients.com\/en\/wp-json\/wp\/v2\/media?parent=3965"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.green-ingredients.com\/en\/wp-json\/wp\/v2\/product_brand?post=3965"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.green-ingredients.com\/en\/wp-json\/wp\/v2\/product_cat?post=3965"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.green-ingredients.com\/en\/wp-json\/wp\/v2\/product_tag?post=3965"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}