Shopping Cart

Your cart is empty.

Your cart is empty.

Whatman 1442-090 Quantitative Filter Paper Circles, 2.5 Micron, Grade 42, 90mm Diameter (Pack of 100)

4.8 (1) Write Review
Free shipping on orders over $29.99

$70.18

$ 27 .99 $27.99

In Stock

1.Size:4.25cm


  • Diameter: 9.0cm
  • Retention: 2.5µm
  • A world standard for critical gravimetric analysis
  • A Whatman cellulose filter is manufactured from high quality cotton linters treated to achieve a minimum alpha cellulose content of 98%
  • Typical analytical precipitates include barium sulphate, metastannic acid and finely precipitated calcium carbonate


A world standard for critical gravimetric analysis with the finest particle retention of all Whatman cellulose filter papers. Typical analytical precipitates include barium sulphate, metastannic acid and finely precipitated calcium carbonate. Retention: 2.5µm. Diameter: 9.0cm. 100/Pack. Whatman #: 1442-090.


Jonathan Caragliano
Reviewed in the United States on August 31, 2017
Great find. These are hard to find in scientific catalogs but a must have for you electrochemistry lab