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Cytiva Whatman™ Quantitative Filter Paper: Grade 540 Circles

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.

Manufacturer:  Cytiva 1540090

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Catalog No. 09-869F


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Description

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)

Specifications

Specifications

13 s/100 mL/in2
Circle
8μm
Frequently used in the gravimetric analysis of metals in acid/alkali solutions and in collecting hydroxides after precipitation by strong alkalis.
Medium
160 μm
3.54 in.
Grade 540 Ashless General Lab Filter Paper, 90 mm circles (100 pcs)
High-quality Cotton Linters
ASTM, 55 seconds; Herzberg, 200 seconds
Grade 540
100/Pk.
Hardened Ashless
90 mm
SDS
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