{"title":"Cyanotype Chemistry","description":"\u003cp\u003eCyanotype chemistry forms the light-sensitive solution that produces the characteristic Prussian blue print after UV exposure and rinsing.\u003c\/p\u003e\u003ch2\u003eChoose between refill, individual components and solution\u003c\/h2\u003e\u003cp\u003eCheck which components are included, in what concentration or quantity and how much solution can be prepared with them. Pre-measured or pre-mixed products are convenient; loose raw materials require more accurate measuring and knowledge of the product instructions. Only use components explicitly intended for the same cyanotype process.\u003c\/p\u003e\u003ch2\u003eMix safely and work reproducibly\u003c\/h2\u003e\u003cp\u003eWear the personal protection prescribed on the label, work in a well-ventilated area and use labeled tools only for cyanotype and never for food. Never mix cyanotype chemicals with acids, cleaning products or unknown substances. Record ratio, paper, drying time, exposure and rinse time and make a test strip for each new combination. Store components according to the label, out of the reach of children and protected from unwanted light.\u003c\/p\u003e\u003cp\u003eAlso explore \u003ca href=\"\/collections\/cyanotype-kits-supplies\"\u003eCyanotype Kits\u003c\/a\u003e · \u003ca href=\"\/collections\/cyanotype-paper\"\u003eCyanotype Paper\u003c\/a\u003e · \u003ca href=\"\/collections\/cyanotype-accessories-supplies\"\u003eCyanotype Accessories\u003c\/a\u003e for compatible materials and the next step in your project.\u003c\/p\u003e","products":[{"product_id":"pure-ferric-ammonium-citrate-green-15-for-cyanotype","title":"Ferric Ammonium Citrate Green 15% – Hoogwaardige Cyanotype chemistry","description":"\u003cdiv class=\"product-description\"\u003e\n\u003cp\u003eAchieve deep, intense blue tones in your cyanotype prints with \u003cstrong\u003eFerric Ammonium Citrate Green 15%\u003c\/strong\u003e, a high-quality, light-sensitive compound essential to the cyanotype process. At \u003ca href=\"https:\/\/www.cyanoprints.com\/\"\u003eCyanoprints.com\u003c\/a\u003e, we supply only laboratory-grade material – reliable, consistent, and trusted by artists, photographers, and educators.\u003c\/p\u003e\n\u003ch2\u003eWhat is Ferric Ammonium Citrate Green 15%?\u003c\/h2\u003e\n\u003cp\u003eFerric Ammonium Citrate (Green) is a photosensitive iron salt that, when combined with \u003ca href=\"https:\/\/www.cyanoprints.com\/products\/pure-potassiumferricyanide-prophoto-grade-99-62-for-cyanotype\"\u003ePotassium Ferricyanide 99.62%\u003c\/a\u003e, forms the classic cyanotype emulsion. The “Green” variant contains \u003cstrong\u003e15% iron content\u003c\/strong\u003e, producing stronger contrast and deeper Prussian blue tones than the weaker brown variants.\u003c\/p\u003e\n\u003ch2\u003eKey features of our Ferric Ammonium Citrate 15%\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e15% iron content\u003c\/strong\u003e – for intense, vivid cyanotype results.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHighly soluble\u003c\/strong\u003e – dissolves quickly in distilled water without clumping.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eProfessional grade\u003c\/strong\u003e – consistent results for both beginners and advanced users.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAvailable from 100 g to 1 kg\u003c\/strong\u003e – suitable for small projects or large workshops.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSafe packaging\u003c\/strong\u003e – supplied in resealable containers with clear labelling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to use Ferric Ammonium Citrate for cyanotype\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eDissolve the powder in distilled water.\u003c\/li\u003e\n\u003cli\u003ePrepare a separate solution of potassium ferricyanide.\u003c\/li\u003e\n\u003cli\u003eMix the two solutions in equal proportions just before use.\u003c\/li\u003e\n\u003cli\u003eApply evenly to paper, fabric, or other absorbent surfaces using a \u003ca href=\"https:\/\/www.cyanoprints.com\/products\/schuimkwasten-cyanotype-set-25mm-50mm-75mm-100mm\"\u003efoam brush\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eDry in a dark room, then expose under sunlight or a UV lamp.\u003c\/li\u003e\n\u003cli\u003eRinse thoroughly with water to reveal your cyanotype print.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eWho is this product for?\u003c\/h2\u003e\n\u003cp\u003eFerric Ammonium Citrate Green 15% is suitable for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eArtists \u0026amp; printmakers\u003c\/strong\u003e – looking to experiment with alternative photographic techniques.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePhotographers\u003c\/strong\u003e – producing high-contrast cyanotype negatives and positives.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTextile designers\u003c\/strong\u003e – creating permanent patterns on cotton, linen, or other fabrics.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEducators\u003c\/strong\u003e – perfect for classroom workshops thanks to its safe and stable properties.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTips for best results\u003c\/h2\u003e\n\u003cp\u003eCombine with the right materials to achieve maximum quality:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.cyanoprints.com\/products\/clairefontaine-goldline-aquapad-cyanotype-papier\"\u003eClairefontaine Aquapad 300g\u003c\/a\u003e – premium paper for sharp, detailed prints.\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.cyanoprints.com\/products\/plexiglas-plaat-cyanotype\"\u003eUV plexiglass plates\u003c\/a\u003e – to keep negatives and objects flat during exposure.\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.cyanoprints.com\/products\/soft-nitril-handschoenen\"\u003eSoft nitrile gloves\u003c\/a\u003e – for safe handling of the chemicals.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eStorage and safety\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eStore in a dry, dark, and cool environment.\u003c\/li\u003e\n\u003cli\u003eAlways wear \u003ca href=\"https:\/\/www.cyanoprints.com\/products\/soft-nitril-handschoenen\"\u003eprotective gloves\u003c\/a\u003e when handling the powder.\u003c\/li\u003e\n\u003cli\u003eDo not mix until ready to use – solutions are best prepared fresh.\u003c\/li\u003e\n\u003cli\u003eKeep out of reach of children and avoid direct contact with skin or eyes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cdiv class=\"product-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between green and brown Ferric Ammonium Citrate?\u003c\/summary\u003e\n\u003cp\u003eThe green variant contains 15% iron, producing deeper and more stable blues. Brown variants are weaker and less suitable for cyanotype.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow long can I store Ferric Ammonium Citrate?\u003c\/summary\u003e\n\u003cp\u003eIn powder form, it can be stored for several years if kept dry, cool, and sealed.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this chemical on fabric?\u003c\/summary\u003e\n\u003cp\u003eYes, it works well on cotton, linen, and other natural fibers. Pre-washing the fabric improves absorption.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need special equipment?\u003c\/summary\u003e\n\u003cp\u003eNo special equipment is needed beyond basic safety items such as gloves, a foam brush, and a UV light source or sunlight.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- cyanoprints-seo-links:start --\u003e\u003ch3\u003eExplore more\u003c\/h3\u003e\u003cp\u003eExplore more \u003ca href=\"\/collections\/cyanotype-chemistry\"\u003eCyanotype Chemistry\u003c\/a\u003e and browse \u003ca href=\"\/collections\/cyanotype\"\u003eCyanotype\u003c\/a\u003e at Cyanoprints.\u003c\/p\u003e\u003c!-- cyanoprints-seo-links:end --\u003e","brand":"Cyanoprints","offers":[{"title":"100g","offer_id":54843715027288,"sku":"FACG100","price":14.99,"currency_code":"EUR","in_stock":true},{"title":"250g","offer_id":54825187377496,"sku":"FACG250","price":24.99,"currency_code":"EUR","in_stock":true},{"title":"500g","offer_id":54825187410264,"sku":"FACG500","price":34.99,"currency_code":"EUR","in_stock":true},{"title":"1000g","offer_id":54825187443032,"sku":"FACG1000","price":54.99,"currency_code":"EUR","in_stock":true},{"title":"25kg","offer_id":57322439999832,"sku":null,"price":1025.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0852\/4156\/1432\/files\/ammoniumijzercitraat_100g_cyanoprints.png?v=1755602425"},{"product_id":"pure-potassiumferricyanide-prophoto-grade-99-62-for-cyanotype","title":"Potassium Ferricyanide 99.62% – Professional Cyanotype Chemical","description":"\u003cdiv class=\"product-description\"\u003e\n\u003cp\u003eCreate deep, rich Prussian blue prints with \u003cstrong\u003ePure Potassium Ferricyanide (99.62%)\u003c\/strong\u003e, the key chemical component of the cyanotype process. At \u003ca href=\"https:\/\/www.cyanoprints.com\/\"\u003eCyanoprints.com\u003c\/a\u003e, we supply only professional-grade, high-purity potassium ferricyanide to ensure sharp, consistent, and long-lasting results for artists, photographers, and educators alike.\u003c\/p\u003e\n\u003ch2\u003eWhat is Potassium Ferricyanide?\u003c\/h2\u003e\n\u003cp\u003ePotassium Ferricyanide (K₃[Fe(CN)₆]) is a light-sensitive iron salt essential for the cyanotype process. When combined with \u003ca href=\"https:\/\/www.cyanoprints.com\/products\/pure-ferric-ammonium-citrate-green-15-for-cyanotype\"\u003eFerric Ammonium Citrate Green (15%)\u003c\/a\u003e, it forms a photosensitive emulsion. Once applied to paper or fabric and exposed to UV light, the chemicals react to create the characteristic deep-blue cyanotype image.\u003c\/p\u003e\n\u003ch2\u003eKey features of our Potassium Ferricyanide 99.62%\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eProphoto Grade (99.62%)\u003c\/strong\u003e – exceptionally pure for even chemical reactions.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFully soluble\u003c\/strong\u003e – dissolves easily in distilled water without residue.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eVersatile use\u003c\/strong\u003e – suitable for paper, cotton fabric, textiles, and mixed media.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFlexible quantities\u003c\/strong\u003e – available from 100 g up to 1 kg.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSafe packaging\u003c\/strong\u003e – supplied in resealable containers with clear labelling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to use Potassium Ferricyanide in cyanotype\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eDissolve the potassium ferricyanide crystals in distilled water.\u003c\/li\u003e\n\u003cli\u003ePrepare a separate solution of ferric ammonium citrate.\u003c\/li\u003e\n\u003cli\u003eMix the two solutions in equal proportions immediately before use.\u003c\/li\u003e\n\u003cli\u003eApply evenly to your chosen surface using a \u003ca href=\"https:\/\/www.cyanoprints.com\/products\/schuimkwasten-cyanotype-set-25mm-50mm-75mm-100mm\"\u003efoam brush\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eAllow to dry in a dark, ventilated space.\u003c\/li\u003e\n\u003cli\u003eExpose under sunlight or a UV lamp, then rinse thoroughly with water to reveal your blueprint.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eCreative applications\u003c\/h2\u003e\n\u003cp\u003eOur potassium ferricyanide is trusted by:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eArtists \u0026amp; printmakers\u003c\/strong\u003e – for experimental blueprints on paper and canvas.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePhotographers\u003c\/strong\u003e – for alternative photographic printing and digital negatives.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEducators\u003c\/strong\u003e – safe enough for classroom workshops with basic precautions.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTextile designers\u003c\/strong\u003e – for printing on cotton, linen, and other absorbent fabrics.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTips for best results\u003c\/h2\u003e\n\u003cp\u003eFor sharper detail and longer-lasting prints, we recommend using:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.cyanoprints.com\/products\/clairefontaine-goldline-aquapad-cyanotype-papier\"\u003eClairefontaine Aquapad 300g paper\u003c\/a\u003e – premium watercolour paper with excellent absorption.\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.cyanoprints.com\/products\/plexiglas-plaat-cyanotype\"\u003eUV plexiglass plates\u003c\/a\u003e – ensures flat contact during exposure.\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.cyanoprints.com\/products\/soft-nitril-handschoenen\"\u003eNitrile gloves\u003c\/a\u003e – protect your hands while mixing and coating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eStorage and safety information\u003c\/h2\u003e\n\u003cp\u003ePotassium ferricyanide is safe to use in the cyanotype process when handled properly:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAlways wear \u003ca href=\"https:\/\/www.cyanoprints.com\/products\/soft-nitril-handschoenen\"\u003eprotective gloves\u003c\/a\u003e and avoid inhalation of dust.\u003c\/li\u003e\n\u003cli\u003eStore in a cool, dry, and dark place away from direct sunlight.\u003c\/li\u003e\n\u003cli\u003eKeep out of reach of children and pets.\u003c\/li\u003e\n\u003cli\u003eDo not expose to strong acids or temperatures above 300°C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cdiv class=\"product-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does \"Prophoto Grade 99.62%\" mean?\u003c\/summary\u003e\n\u003cp\u003eIt refers to the purity level of the chemical. At 99.62%, this potassium ferricyanide is exceptionally pure, ensuring stable and predictable reactions.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow much solution can I prepare with 100 g?\u003c\/summary\u003e\n\u003cp\u003eWith 100 g, you can prepare enough solution to coat approximately 40–50 A4 sheets, depending on coating thickness.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this chemical for textiles?\u003c\/summary\u003e\n\u003cp\u003eYes, potassium ferricyanide is excellent for use on cotton and linen. Ensure the fabric is pre-washed for optimal results.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs potassium ferricyanide safe?\u003c\/summary\u003e\n\u003cp\u003eYes, when handled correctly. Avoid contact with acids and wear gloves during preparation and coating.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat should I combine this product with?\u003c\/summary\u003e\n\u003cp\u003eIt must be combined with \u003ca href=\"https:\/\/www.cyanoprints.com\/ferric-ammonium-citrate-green-15-cyanotype\"\u003eFerric Ammonium Citrate Green 15%\u003c\/a\u003e to prepare a photosensitive cyanotype emulsion.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- cyanoprints-seo-links:start --\u003e\u003ch3\u003eExplore more\u003c\/h3\u003e\u003cp\u003eExplore more \u003ca href=\"\/collections\/cyanotype-chemistry\"\u003eCyanotype Chemistry\u003c\/a\u003e and browse \u003ca href=\"\/collections\/cyanotype\"\u003eCyanotype\u003c\/a\u003e at Cyanoprints.\u003c\/p\u003e\u003c!-- cyanoprints-seo-links:end --\u003e","brand":"Cyanoprints","offers":[{"title":"100g","offer_id":54841937854808,"sku":"KHCF100","price":14.99,"currency_code":"EUR","in_stock":true},{"title":"250g","offer_id":54825252815192,"sku":"KHCF250","price":24.99,"currency_code":"EUR","in_stock":true},{"title":"500g","offer_id":54825252847960,"sku":"KHCF500","price":39.99,"currency_code":"EUR","in_stock":true},{"title":"1000g","offer_id":54825252880728,"sku":"KHCF1000","price":64.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0852\/4156\/1432\/files\/kaliumhexacyanoferraat_100g_cyanoprints.png?v=1755602514"}],"url":"https:\/\/www.cyanoprints.com\/collections\/cyanotype-chemistry.oembed","provider":"Cyanoprints","version":"1.0","type":"link"}