{"product_id":"bone-ash-white","title":"Bone Ash, white","description":"\u003cp\u003ethickening extender in lime paints\u003c\/p\u003e\n\u003cul class=\"articleProperties\"\u003e\n\u003cli\u003e\n\u003cspan class=\"articlePropertyName\"\u003eChemical description:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"articlePropertyValue\"\u003eBone Ash (CaO 52%, P2O2 40%, SiO2 2%)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"articlePropertyName\"\u003eSuitability:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"articlePropertyValue\"\u003eAcrylics, Lime \/ Fresco, Silicate binder, Waterglass\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"articlePropertyValue\"\u003e\u003cmeta charset=\"utf-8\"\u003eChemical composition: tricalcium phosphate Ca3(PO4)2 Bone ash is made by calcining animal bones. It often contains additional traces of calcium carbonate and other minor constituents. Ash from the bones of different animals varies a little in composition. Bone ash is a grayish white, slightly gritty powder. For the silver point technique, it was used for its abrasive properties and tooth on paper and parchment in medieval times. Excerpts from: Painting Materials by Rutherford J. Gettens and George L. Stout\u003c\/span\u003e\u003c\/p\u003e","brand":"Kremer Pigments","offers":[{"title":"100 g","offer_id":44919860035654,"sku":"58920.12100.136","price":10.0,"currency_code":"USD","in_stock":true},{"title":"500 g","offer_id":44919860068422,"sku":"58920.12500.140","price":19.0,"currency_code":"USD","in_stock":true},{"title":"1 kg","offer_id":44919860101190,"sku":"58920.13010.140","price":27.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/5009\/3126\/files\/58920_4.jpg?v=1776534706","url":"https:\/\/www.newyorkpigmentco.com\/products\/bone-ash-white","provider":"New York Pigment Co.","version":"1.0","type":"link"}