Deskripsi

Whatman – Qualitative Filter Papers; 9.0 cm Diameter (1004-090)

These cellulose filters are used in qualitative analytical techniques to determine and identify materials and for clarifying liquids.

• Particle Retention: 25μm
• Porosity: Coarse
• Filtration speed: Herzberg, 37 sec.
• Surface: smooth
• Extremely fast filtering  with excellent retention of coarse particles and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide
• Useful as a rapid filter for routine clean-up of biological fluids or organic extracts during analysis