Qualitative filter papers, wet strengthened grades, grade 91, Whatman™

Supplier: Whatman products (Cytiva)
1091-110 1091-125 1091-150 1091-185 1091-190 1091-240 1091-930 1091-165 1091-935
1091110.EA 442 EUR
1091110. 1091125. 1091150. 1091185. 512-0613 1091240. 512-0648 512-0612 512-0614
Qualitative filter papers, wet strengthened grades, grade 91, Whatman™
Filters Filter Papers Qualitative Filter Paper
A general purpose creped cellulose filter for less critical routine analysis. Widely used to assay sucrose in cane sugar and within pharmaceutical laboratories for routine filtration.

These extremely strong filter papers have a high wet strength due to the addition of a small quantity of chemically stable resin. Normal qualitative applications will not introduce any significant impurities into the filtrate. The resins do, however, contain nitrogen so these grades should not be used in Kjeldahl estimations, etc.
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