{"title":"Buchner Funnels","description":"\u003cp\u003eBuchner funnels are used for vacuum filtration in laboratories, enabling rapid separation of precipitates or solids from liquids using suction. Our range includes porcelain Buchner funnels in various sizes to suit different filtration volumes.\u003c\/p\u003e\u003cp\u003eBuchner funnels work with filter papers and a vacuum flask to create an efficient filtration system, widely used in chemistry, pharmaceutical, and environmental testing laboratories.\u003c\/p\u003e\u003cp\u003eSmartLabs supplies Buchner funnels to labs and schools across South Africa. Browse our range for reliable, affordable porcelain funnels for your vacuum filtration applications.\u003c\/p\u003e","products":[{"product_id":"funnel-buchner","title":"Funnel, Buchner","description":"\u003cp\u003eBüchner funnel with straight sides and a fixed perforated plate. Made of glazed porcelain. For use in filtration (separation of solid matter and fluid). Filtration paper needed but NOT included. Moisten filter paper with a liquid to prevent initial leakage.\u003cbr\u003eOften used in combination with a Büchner flask and tapered filter adapter cones (CH0421).\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0cm; line-height: normal;\" class=\"MsoNormal\"\u003eThe Büchner Funnel is an essential tool for laboratories requiring efficient and reliable filtration. Its robust design and compatibility with standard filter papers make it a valuable addition to any laboratory setup. Büchner funnels are used in the laboratory for vacuum-assisted liquid filtering. In organic chemistry, these funnels are used to collect recrystallized compounds because they help remove moisture from the final product. A special funnel used to separate solids (sludge) from a mixture. A perforated plate or a filter paper is placed in the lower portion of the funnel to hold the mixture (wet sludge). The funnel is placed in a filter flask and a vacuum is applied to remove the liquid (dewater the sludge).\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0cm; line-height: normal;\" class=\"MsoNormal\"\u003eIt is traditionally made of porcelain, but glass and plastic funnels are also available. On top of the funnel-shaped part there is a cylinder with a fritted glass disc\/perforated plate separating it from the funnel.\u003ca rel=\"noopener\" href=\"https:\/\/www.camlab.co.uk\/blog\/what-size-filter-paper-do-i-need-for-my-funnel\" draggable=\"false\" style=\"color: #ffffff; font-weight: bold; font-style: normal; font-kerning: none; --ys-xuq: none;\" class=\"OYPEnA font-feature-liga-off font-feature-clig-off font-feature-calt-off text-decoration-none text-strikethrough-none\" target=\"_blank\"\u003eWhat size filter paper do I need for my funnel?\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0cm; line-height: normal;\" class=\"MsoNormal\"\u003eThe main advantage in using this type of filtration is that it proceeds much more quickly than simply allowing the liquid to drain through the filter medium via the force of gravity. It is essential that the amount of liquid being used is limited to less than what would overflow the flask; otherwise, the liquid will be drawn into the vacuum equipment. \u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0cm; line-height: normal;\" class=\"MsoNormal\"\u003eWhen using a Büchner funnel, the filter paper should be large enough to cover all the holes in the funnel and create a good seal.\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0cm; line-height: normal;\" class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0cm; line-height: normal;\" class=\"MsoNormal\"\u003e\u003ca title=\"What size filter paper do I need for my funnel?\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0569\/3584\/1945\/files\/What_size_filter_paper_do_I_need_for_my_funnel-3.pdf?v=1751464986\"\u003eWhat size filter paper do I need for my funnel?\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0cm; line-height: normal;\" class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003ctable height=\"250\" style=\"border-collapse: collapse; width: 340px;\" width=\"278\" cellspacing=\"0\" cellpadding=\"0\" border=\"0\"\u003e\n\u003ccolgroup\u003e \u003ccol style=\"width: 132.333px;\" width=\"113\"\u003e \u003ccol style=\"width: 100.333px;\" width=\"80\"\u003e \u003ccol style=\"width: 105.333px;\" width=\"85\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt; width: 85pt;\" width=\"113\" class=\"xl65\" height=\"20\"\u003eFunnel O.D (mm)\u003c\/td\u003e\n\u003ctd style=\"width: 60pt;\" width=\"80\" class=\"xl65\"\u003ePaper (mm)\u003c\/td\u003e\n\u003ctd style=\"width: 64pt;\" width=\"85\" class=\"xl65\"\u003eVolume (mL)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt;\" class=\"xl65\" height=\"20\"\u003e35\u003c\/td\u003e\n\u003ctd class=\"xl65\"\u003e25\u003c\/td\u003e\n\u003ctd class=\"xl65\"\u003e10mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt;\" class=\"xl65\" height=\"20\"\u003e50\u003c\/td\u003e\n\u003ctd class=\"xl65\"\u003e40\u003c\/td\u003e\n\u003ctd class=\"xl65\"\u003e30mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt;\" class=\"xl65\" height=\"20\"\u003e60\u003c\/td\u003e\n\u003ctd class=\"xl65\"\u003e50\u003c\/td\u003e\n\u003ctd class=\"xl65\"\u003e55mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt;\" class=\"xl65\" height=\"20\"\u003e75\u003c\/td\u003e\n\u003ctd class=\"xl65\"\u003e55\u003c\/td\u003e\n\u003ctd class=\"xl65\"\u003e90mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt;\" class=\"xl65\" height=\"20\"\u003e80\u003c\/td\u003e\n\u003ctd class=\"xl65\"\u003e70\u003c\/td\u003e\n\u003ctd class=\"xl65\"\u003e150mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt;\" class=\"xl65\" height=\"20\"\u003e100\u003c\/td\u003e\n\u003ctd class=\"xl65\"\u003e80\u003c\/td\u003e\n\u003ctd class=\"xl65\"\u003e300mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt;\" class=\"xl65\" height=\"20\"\u003e125\u003c\/td\u003e\n\u003ctd class=\"xl65\"\u003e110\u003c\/td\u003e\n\u003ctd class=\"xl65\"\u003e700mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt;\" class=\"xl65\" height=\"20\"\u003e150\u003c\/td\u003e\n\u003ctd class=\"xl65\"\u003e125\u003c\/td\u003e\n\u003ctd class=\"xl65\"\u003e1000mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt;\" class=\"xl65\" height=\"20\"\u003e200\u003c\/td\u003e\n\u003ctd class=\"xl65\"\u003e170\u003c\/td\u003e\n\u003ctd class=\"xl65\"\u003e2000mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt;\" class=\"xl65\" height=\"20\"\u003e250\u003c\/td\u003e\n\u003ctd class=\"xl65\"\u003e210\u003c\/td\u003e\n\u003ctd class=\"xl65\"\u003e4500mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.0pt;\" height=\"20\"\u003e\n\u003ctd style=\"height: 15.0pt;\" class=\"xl65\" height=\"20\"\u003e300\u003c\/td\u003e\n\u003ctd class=\"xl65\"\u003e255\u003c\/td\u003e\n\u003ctd class=\"xl65\"\u003e7000mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"smartsciencelabs","offers":[{"title":"Funnel, Buchner 35mm (Single)","offer_id":40199447937177,"sku":"CH0462A","price":57.33,"currency_code":"ZAR","in_stock":false},{"title":"Funnel. Buchner 50mm (Single)","offer_id":40199448494233,"sku":"CH0462B","price":63.31,"currency_code":"ZAR","in_stock":false},{"title":"Funnel. Buchner 60mm (Single)","offer_id":40199448592537,"sku":"CH0462C","price":77.0,"currency_code":"ZAR","in_stock":true},{"title":"Funnel. Buchner 80mm (Single)","offer_id":44692804993177,"sku":"CH0462D1","price":115.0,"currency_code":"ZAR","in_stock":true},{"title":"Funnel. Buchner 75mm (Single)","offer_id":40199448658073,"sku":"CH0462D","price":135.0,"currency_code":"ZAR","in_stock":true},{"title":"Funnel. Buchner 100mm (Single)","offer_id":44692805157017,"sku":"CH0462E1","price":195.0,"currency_code":"ZAR","in_stock":true},{"title":"Funnel, Buchner 105mm (Single)","offer_id":40199449051289,"sku":"CH0462E","price":135.64,"currency_code":"ZAR","in_stock":false},{"title":"Funnel. Buchner 125mm (Single)","offer_id":40199449116825,"sku":"CH0462F","price":375.0,"currency_code":"ZAR","in_stock":true},{"title":"Funnel. Buchner 150mm (Single)","offer_id":40199449149593,"sku":"CH0462G","price":455.0,"currency_code":"ZAR","in_stock":true},{"title":"Funnel. Buchner 200mm (Single)","offer_id":40199449247897,"sku":"CH0462H","price":1200.0,"currency_code":"ZAR","in_stock":true},{"title":"Funnel. Buchner 210mm (Single)","offer_id":42760422490265,"sku":"CH0462I","price":895.16,"currency_code":"ZAR","in_stock":false},{"title":"Funnel. Buchner 250mm (Single)","offer_id":43139140878489,"sku":"CH0462I-A","price":1900.0,"currency_code":"ZAR","in_stock":true},{"title":"Funnel, Buchner 300mm (Single)","offer_id":40199449641113,"sku":"CH0462J","price":2800.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0569\/3584\/1945\/products\/funnel-buchner-949121.png?v=1744789507"}],"url":"https:\/\/smartlabs.co.za\/collections\/buchner-funnels.oembed","provider":"SmartLabs","version":"1.0","type":"link"}