{"product_id":"whatman-grade-42-quantitative-ashless-filter-paper-very-fine-precipitates-retained-12-5-cm","title":"Whatman Grade 42 Quantitative Ashless Filter Paper, Very Fine Precipitates Retained, 12.5 cm, Cytiva, 1442-125","description":"\u003cp\u003e\u003cstrong\u003eCytiva® Whatman® Grade 42 Quantitative Ashless Filter Paper, Very Fine Precipitates Retained, 12.5 cm, 1442-125\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\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\u003eHave finest retention of all Whatman ashless filter paper grades\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 calcium carbonate filter in cement industry\u003c\/li\u003e\n\u003cli\u003eParticularly suitable for gravimetric analysis of precipitates including barium sulfate and metastannic acid for use in glazes, coatings, and pigments\u003c\/li\u003e\n\u003cli\u003eSuitable of processes that require ashing\u003c\/li\u003e\n\u003cli\u003eNominal thickness: 200 µm\u003c\/li\u003e\n\u003cli\u003eNominal basis weight: 100 g\/m\u003csup\u003e2\u003c\/sup\u003e\n\u003c\/li\u003e\n\u003cli\u003eMinimum alpha cellulose content: ≥98%\u003c\/li\u003e\n\u003cli\u003eTrace element levels: Aluminium 2.5 µg\/g Antimony \u0026lt;0.5 µg\/g Arsenic \u0026lt;0.5 µg\/g Barium \u0026lt;0.5 µg\/g Boron \u0026lt;1 µg\/g Calcium 8.3 µg\/g Chromium 1.5 µg\/g Copper 2 µg\/g Iron 12 µg\/g Lead \u0026lt;0.5 µg\/g Magnesium 4 µg\/g Manganese \u0026lt;0.5 µg\/g Mercury \u0026lt;0.5 µg\/g Potassium 2.3 µg\/g Silicon 6.2 µg\/g Sodium 16.8 µg\/g Zinc 64.5 µg\/g \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cytiva","offers":[{"title":"PK (1)","offer_id":51110953386299,"sku":"90-7503-06-PK","price":103.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7503-06_cdeda767-4b26-4117-b3bd-1d1ab2cf42d2.png?v=1785309786","url":"https:\/\/preiser.com\/products\/whatman-grade-42-quantitative-ashless-filter-paper-very-fine-precipitates-retained-12-5-cm","provider":"Preiser Scientific","version":"1.0","type":"link"}