Whatman No 42 Filter Paper Pore Size

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.

Whatman no 42 filter paper pore size.

Grade 42 ashless filter paper for instrumental analysis 460 570 mm sheet 100 pcs 28418043. Grade 42 ashless filter paper for instrumental analysis 110 mm circle 100 pcs 28418044. Whatman filter papers and membranes are world renowned as a standard for laboratory filtration and are associated with quality reliability and reproducibility. Whatman quantitative filter paper ashless whatman grade 42 quantitative filter paper ashless whatman 1442 125 ashless grade 42 quantitative filter paper diameter.

Our membrane filter offering includes pore sizes from 0 015 to 12 µm. Typical analytical precipitates include barium sulfate metastannic acid and finely precipitated calcium carbonate. Membrane filters are recommended for retention of very small particles or for microbiological purposes. 12 25 μm a fast filter paper with high wet strength.

Smooth surface for easy recovery of precipitates. 25 μm only half the thickness of grade 113 and suitable for coarse or gelatinous precipitates. It has a very smooth surface making it easy to scrape or. 125 mm pack of 100 synonym.

Thickest filter paper in the whatman range. 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. 2 5 μm slow filter paper a world standard for critical gravimetric analysis with the finest particle retention of all whatman cellulose filter papers. Whatman grade 542 filter paper has a high retention of fine particles 2 7 μm at 98 efficiency under demanding conditions.

Wha1002125 whatman qualitative filter paper grade 2 circles diam. Grade 42 ashless filter paper for instrumental analysis 125 mm circle 100 pcs 28418045. Whatman quantitative filters are designed for gravimetric analysis and the preparation of samples for instrumental analysis. Typical analytical precipitates include barium sulfate metastannic acid and finely precipitated calcium carbonate.

Below are summaries of the grade properties and common uses. 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. It has a slow flow rate and is very hard and strong with excellent chemical resistance.