US$ 55.00
and psychology teaching
and a replaceable 5W heating coil for 6V 1A powered specific-heat work
Long-format 150 x 10mm chrome-steel cylinder pair with half-red
and a tensioning pulley
Chromatography Filter Paper, 46 x 57cm, No. 4 Material_Zinc and psychology teachingDesigned for fast flow paper chromatography, this No. 4 filter paper sheet measures 46 x 57cm for separating pigments, dyes, and larger organic molecules.