24/40 250ml Pear Shape Glass Separatory Funnel with Glass Stopcock & Drop Tube - Premium Lab Glassware for Chemical Extraction, Liquid Separation & Essential Oil Distillation

24/40,250ml,Glass Pyriform Separatory Funnel,Pear Shape,Glass Stopcock,Drop tube 1 Be made of G3.3 borosilicate glass. This borosilicate glass with low linear coefficient of expansion is ideal choice for fabricating laboratory glassware. Annealing Point ------560℃ Linear Coefficient of Expansion ------ 32×10-7/℃ Softening Point ------820℃ 2 The thickness of the flask is 2.5mm.