Whatman No 42 Filter Paper Pore Size

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Whatman no 42 filter paper pore size. Whatman quantitative filters are designed for gravimetric analysis and the preparation of samples for instrumental analysis. They are available in three formats designed to meet your specific needs. 0 007 ash maximum for grades 40 to 44 and a maximum of 0 01 for the 589 grades very pure filters suitable for a wide range of. Grade 42 ashless filter paper for instrumental analysis 110 mm circle 100 pcs 28418044.

Whatman quantitative filter paper ashless whatman grade 42 quantitative filter paper ashless whatman 1442 125 ashless grade 42 quantitative filter paper diameter. It has a slow flow rate and is very hard and strong with excellent chemical resistance. Below are summaries of the grade properties and common uses. Smooth surface for easy recovery of precipitates.

Whatman filter papers and membranes are world renowned as a standard for laboratory filtration and are associated with quality reliability and reproducibility. Thickest filter paper in the whatman range. 12 25 μm a fast filter paper with high wet strength. Grade 42 ashless filter paper for instrumental analysis 460 570 mm sheet 100 pcs 28418043.

Membrane filters are recommended for retention of very small particles or for microbiological purposes. Whatman grade 42 filter paper is used for critical gravimetric analysis with the finest particle retention of all whatman cellulose filter papers 2 5 mm at 98 efficiency. Wha1002125 whatman qualitative filter paper grade 2 circles diam. Different types of qualitative whatman filter paper their properties the most common qualitative paper grades are 1 6 595 597 598 and 602 which have applications across multiple industries.

Whatman grade 542 filter paper has a high retention of fine particles 2 7 μm at 98 efficiency under demanding conditions. Grade 42 ashless filter paper for instrumental analysis 125 mm circle 100 pcs 28418045. It has a very smooth surface making it easy to scrape or. 25 μm only half the thickness of grade 113 and suitable for coarse or gelatinous precipitates.

Whatman grade 542 filter paper is often used in gravimetric metal determinations. Typical analytical precipitates include barium sulfate metastannic acid and finely precipitated calcium carbonate. 125 mm pack of 100 synonym.