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Filtration Filter paper Whatman filter paper

Whatman filter paper

Fibreglass filter papers Whatman

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• Made from 100% borosilicate glass
• Chemically inert
• Completely free of binders
• In-depth filtering
• High flow
• High loading capacity
• Retention of particles less than one micron
• Resists temperatures up to 500 °C
• Ideal material for hot gas filtration or gravimetric analysis of volatile materials from combustion
• Fine capillary structure with high water absorption, suitable for spot tests or liquid scintillation counting methods

Phase separator paper 1PS Whatman

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Hydrophobic filter paper retaining the aqueous phases and letting the organic phases pass through without any trace of the aqueous phase.
Ideal replacement for standard separating funnels. Very practical for battery solvent extraction.

Whatman qualitative filter papers

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Cellulose filters made from high quality cotton wadding. Qualitative filters are used in qualitative analysis techniques to determine and identify substances. Some grades are reinforced with a stable resin making them resistant to moisture.

Whatman quantitative filter papers

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Ashless characteristics:
• Made from cotton fibres of high quality in rooms with controlled dust.
• High purity filter for a wide range of critical applications
• 0.007 % ashes maximum

Enhanced low ash characteristics:
• Treatment with strong acids to improve the chemical resistance and strength after wetting
• Smooth surface for the recovery of precipitates
• 0.015 % ashes maximum

Enhanced ashless characteristics:
• Acid treatment for better resistance after wetting in combination with a very low ash residue
• Smooth and resistant surface for a wide variety of manipulations
• 0.006 % ashes maximum

Whatman™ filter papers

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• Cellulose filters made from high quality cotton wool. Qualitative filters are used in qualitative analysis techniques to determine and identify substances. Some grades are reinforced with a stable resin making them resistant to moisture
• Fits easily into conical funnels
• 2 formats available:
- quadrant (round filter pre-folded in four)
- pyramid (pyramid-shaped filter)