Whatman™ Grade 4 Qualitative Filter Papers, Whatman products (Cytiva)

Supplier: Cytiva
1004-042 1004-055 1004-070 1004-090 1004-110 1004-125 1004-150 1004-185 1004-240 1004-320 1004-270 1004-400 1004-047 1004-041 1004-050 1004-917 1004-930 1004-027 1004-648
28460-019PK 14.55 USD
28460-019 28460-030 28460-041 28460-063 28460-085 28460-110 28460-120 28460-142 28460-164 28460-171 70240-024 70240-026 11008-514 10035-226 10035-228 10035-230 10035-232 10035-824 10147-900
Whatman™ Grade 4 Qualitative Filter Papers, Whatman products (Cytiva)
Filters Filter Paper Qualitative Filter Paper
Whatman Grade 4 Qualitative Filter Papers are a standard grade, high flow rate filter paper. They are useful in qualitative analytical separations when fast flow is required and the collection of fine particles is not critical.

  • Excellent retention: Captures coarse particles and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide
  • Fast filtration: Useful for routine clean-up of biological fluids or organic extracts during analysis

These cellulose filters are used in qualitative analytical techniques to determine and identify materials (e.g., in air pollution monitoring).

Grade 4 Qualitative Filter Papers (20 - 25 µm particle retention) are available in a variety of sizes and formats including circles, sheets, and rolls. They are also available as prepleated filters, which give improved flow rate and increased loading capacity compared to equivalent flat filters.
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