Microscope slides 26x76x1 mm acc. ISO Norm 8037 / I cut edges pack 50 pcs.

are manufactured from extra white glass. Approximate Chemical Composition: Silicon Dioxide SiO2 72.20% Sodium Oxide Na2O 14.30% Potassium Oxide K2O 1.20% Calcium Oxide CaO 6.40% Magnesium Oxide MgO 4.30% Aluminium Oxide AL2O3 1.20% Ferric Oxide Fe2O3 0.03% Sulfur Trioxide SO3 0.30% Mean Coefficient of Expansion : 90.6 x 10-7 /ºC (20-300º C) Strain Point log n 14.5 : 513° C Softening Littleton Point : 720° C Sale only to companies.