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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.
| Catalog Number | Diameter (Metric) |
|---|---|
| FKS10586161 | 125 mm |
Catalog number FKS10586161
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Diameter (Metric):
125 mm
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 8μm
- Medium flow rate (Herzberg filtration speed 200s)
Specifications
Airflow Rate13 s/100 mL/in2
DescriptionGrade 540 Ashless General Lab Filter Paper, 125 mm circles (100 pcs)
Filter TypeHardened Ashless
FormatDisc
MaterialCotton Linters
Particle Retention8 μm
Filtration SpeedASTM, 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.
GradeGrade 540
PorosityMedium
Quantity100/Pk.
Thickness (Metric)160 μm
TypeQuantitative Filter Paper
Diameter (English)4.92 in.
Diameter (Metric)125 mm
Unit SizePK