QUALITATIVE FILTER PAPERS

R1,00

  • High Purity: Made of high-quality alpha cellulose with ash content < 0.1 %.
  • Effective Filtration: Available in very fast, fast, medium, slow,  very slow,  ultra-slow
  • Size Options: Ranges from 55mm to 240mm in diameter.
  • Acid Washed: Rinsed with ultrapure water for neutral pH.
  • Versatile Applications: Ideal for quantitative analysis, gravimetric tests, and sample prep for instrumental analysis.
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Description

CROSS REFERENCE GRADES
Filtration speedCHMWHATMANS&SM&NSARTORIUS
VERY FASTF10044604617288
FASTF1007--597--289
MEDIUMF10011593615292
MEDIUM-SLOWF10022--616md292a
SLOWF10066602h619eh290
VERY SLOWF10055602eh619293

 

APPLICATION EXAMPLES

Very Fast Filtration

  • Ideal for filtering coarse, flocculent, and bulky precipitates
  • Used for hydroxides of iron, aluminum, and chromium
  • Effective in sulfides of copper, bismuth, cobalt, and iron
  • Suitable for various organic metal precipitates
  • Applied in the determination of silicon in steel and pig iron analysis

Fast Filtration

  • Commonly used in analytical work
  • Filters sulfides of silver, arsenic, antimony, cadmium, lead, iron, and magnesium
  • Used in lead chromate, ammonium molybdate, and alkaline earth carbonate filtration
  • Suitable for routine laboratory separations
  • Provides moderate particle retention with high flow rates

Medium Filtration

  • Allows fast filtration of fine precipitates
  • Used for calcium oxalate and magnesium ammonium phosphate separations
  • Suitable for coarser forms of barium sulfate
  • Frequently applied in routine qualitative laboratory tests
  • Balances flow rate and particle retention

Medium-Slow Filtration

  • Filters fine precipitates such as lead dioxide, calcium fluoride, nickel sulfide, and zinc sulfide
  • Ensures efficient separation of fine particles
  • Maintains a controlled filtration rate
  • Used in routine and industrial applications
  • Preferred for laboratory processes requiring moderate filtration speed

Slow Filtration

  • Designed for precise separation of fine precipitates
  • Used for cold-precipitated barium sulfate and metastannic acid
  • Ensures minimal sample loss
  • Frequently applied in gravimetric analysis and sample preparation
  • Ideal for samples requiring extended filtration time

Very Slow Filtration

  • Used for ultra-fine particle filtration
  • Filters fine-grained precipitates such as cold-precipitated barium sulfate and metastannic acid
  • Ensures high-precision laboratory analyses
  • Preferred in critical pharmaceutical and chemical applications
  • Provides maximum particle retention for demanding procedures

 

 

Disclaimer: Product images are for illustration purposes only. The actual brand received may vary based on availability, as Labogemdi sources high-quality laboratory products from multiple trusted suppliers. While we are not directly affiliated with specific brands, we ensure that all products comply with laboratory and research-grade standards, meeting the requirements of academic institutions, research laboratories, and industrial applications.