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  5. Cytiva Whatman™ Quantitative Filter Paper: Grade 540 Circles

Cytiva Whatman™ Quantitative Filter Paper: Grade 540 Circles

Product Code. 10092081
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Diameter (Metric):
21 mm
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42.5 mm
55 mm
90 mm
110 mm
125 mm
150 mm
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240 mm
Unit Size:
Pack of 100

Product Code. 10092081

Brand: Cytiva 1540150

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Description

Use as a gravimetric filter during analysis of metals in acidic or alkaline solutions and in the collection of hydroxides. Whatman™ Quantitative Filter Paper: Grade 540 Circles acid-treated surface prevents tearing during filtration and allows the user to scrape precipitates from the paper.

Whatman hardened ashless quantitative filter papers are acid-hardened to give high wet strength and chemical resistance with extremely low ash content. They are suitable for a wide range of critical filtration procedures.
  • High-purity, acid-treated cellulose lab filter paper
  • Mechanically strong 
  • Well suited for quantitative or gravimetric analysis of strongly acidic or alkaline samples
  • Extremely low ash content (0.006% ash maximum)
  • Nominal particle retention of 8 μm
  • Medium flow rate (Herzberg filtration speed 200 s)

TRUSTED_SUSTAINABILITY

Specifications

Airflow Rate 13 s/100 mL/in2
Description Grade 540 Ashless General Lab Filter Paper, 150 mm circles (100 pcs)
Filter Type Hardened Ashless
Format Disc
Material Cotton Linters
Particle Retention 8 μm
Filtration Speed ASTM, 55 seconds; Herzberg, 200 seconds
For Use With (Application) Frequently used in the gravimetric analysis of metals in acid/alkali solutions and in collecting hydroxides after precipitation by strong alkalis.
Grade Grade 540
Porosity Medium
Quantity 100/Pk.
Thickness (Metric) 160 μm
Type Quantitative Filter Paper
Diameter (English) 5.9 in.
Diameter (Metric) 150 mm
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