Patinas for Metal Artists
Barometric Pressure and Humidity
Photo Processes and Formulas
Science Experiments
Laboratory Procedures
Biodiesel Processing
These medium flow, 7.0 cm diameter qualitative grade plain filter circles are ideal for retaining crystaline materials and for general chemistry applications.
7.0 cm Filter Paper, Qualitative Fast Flow, Pk/100 Cat. No. - NC-12169 $4.75
Burner Tripod Lab Stand Cat. No. - NC-7880 $8.50
Rubber Gasket or Vacuum Filter Aid Cat. No. - NC-12135 $5.95
Buchner Funnel, 70mm Cat. No. - G-1981 $8.25