{"product_id":"whatman-grade-42-quantitative-ashless-filter-paper-very-fine-precipitates-retained-9-cm","title":"Whatman Grade 42 Quantitative Ashless Filter Paper, Very Fine Precipitates Retained, 9 cm","description":"\u003cp\u003e\u003cstrong\u003eCytiva® Whatman® Grade 42 Quantitative Ashless Filter Paper, Very Fine Precipitates Retained, 9 cm, 1442-090\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-purity, ashless Grade 42 quantitative filter papers are suitable for wide range of critical analytical filtration procedures for quantitative analysis\u003c\/li\u003e\n\u003cli\u003eOffer finest retention of all Whatman ashless filter paper grades—retention of extremely small particles\u003c\/li\u003e\n\u003cli\u003eDesigned for gravimetric analysis and sample preparation for instrumental analysis\u003c\/li\u003e\n\u003cli\u003eAshless: 0.007% ash maximum\u003c\/li\u003e\n\u003cli\u003eFine (2.5 μm) nominal particle retention rating, eliminates large particles that might otherwise interfere with sensitive instrumentation\u003c\/li\u003e\n\u003cli\u003eHerzberg filtration speed of 1870 s\u003c\/li\u003e\n\u003cli\u003eCommonly used as a calcium carbonate filter\u003c\/li\u003e\n\u003cli\u003eParticularly suitable for gravimetric analysis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCommon example of use of Grade 42 is as calcium carbonate filter for analysis in cement industry\u003c\/li\u003e\n\u003cli\u003eOther typical precipitates for gravimetric analysis include barium sulfate and metastannic acid for use in glazes, coatings, and pigments\u003c\/li\u003e\n\u003cli\u003eHigh purity of Grade 42 filters also makes them suitable for processes that require ashing\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cytiva","offers":[{"title":"PK (1)","offer_id":51110953287995,"sku":"90-7503-04-PK","price":73.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7503-04_56570824-0fec-42bf-8ba1-2600a7760f9d.png?v=1784705372","url":"https:\/\/preiser.com\/products\/whatman-grade-42-quantitative-ashless-filter-paper-very-fine-precipitates-retained-9-cm","provider":"Preiser Scientific","version":"1.0","type":"link"}