Open Top Cylindrical Dropping Funnel with Glass Key Stopcock, 250mL, Ungraduated, Borosilicate Glass Chemical_Fine White Sand Very long-focal 75mm double-concave glass

Very long-focal 75mm double-concave glass lens at 500mm focal length

and safety data sheets

Two-prong single-adjustable universal clamp with an integral bosshead and non-slip vinyl sleeves

offering flexible positioning during force

the polysaccharide used as the iodine-clock-reaction indicator and as a complex-sugar source in biology labs

Open Top Cylindrical Dropping Funnel with Glass Key Stopcock, 250mL, Ungraduated, Borosilicate Glass Chemical_Fine White Sand Very long-focal 75mm double-concave glassOpen top cylindrical dropping funnel in borosilicate glass holds 250mL with glass key stopcock for controlled liquid addition procedures.