{"product_id":"calcium-carb-whiting-5","title":"Calcium Carb Whiting - NZ","description":"\u003cp\u003e\u003cstrong\u003eDonated to Cornell by Nan Zantal. All proceeds will go to supporting Sinclair Community College Students looking to attend workshops at Cornell.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eCaCO\u003c\/span\u003e\u003csub\u003e3\u003c\/sub\u003e\u003cspan\u003e \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThis is the most common source of calcium in glazes. It is a high temperature flux that gives durability and hardness to glazes. \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eWhiting 325 mesh - standard material used in pottery glazes. 98.0 % CaCO3 with 1% retained on a 325 mesh sieve \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eCalcium Carbonate alone is quite refractory but when mixed with feldspar or silica will start fluxing around 1100°C. It is often used in low fire clay bodies as an addition to help with glaze fit. It is rarely used as a flux in stoneware or porcelains. This is the Eastern Version of Calcium Carbonate.\u003c\/span\u003e\u003c\/p\u003e","brand":"Cornell Studio Supply","offers":[{"title":"2#","offer_id":54046873682230,"sku":null,"price":3.75,"currency_code":"USD","in_stock":true},{"title":"5#","offer_id":54046873649462,"sku":null,"price":7.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/5041\/4134\/files\/IMG_0570_ccd6c74e-d473-4ffd-9b6f-46776201f048.jpg?v=1780763484","url":"https:\/\/cornellstudiosupply.com\/products\/calcium-carb-whiting-5","provider":"Cornell Studio Supply","version":"1.0","type":"link"}