Microscope coverslip D 263® M

Product Information Colorless Borosilicate Glass for flawless Miscroscopy D 263® M is a colorless borosilicate glass that SCHOTT manufactures with the help of a special down-draw method. It is available from stock in various sheet sizes and thicknesses ranging from 0.1 mm to 0.21 mm. D 263® M is the perfect choice as cover glass for microscopic analysis and meets the requirements specified in ISO 8255-1. The chemical composition of D 263® M ensures valid and reliable research results due to its low auto-fluorescence and high chemical resistance. Advantages • High luminous transmittance • Colorless appearance • Excellent cosmetic quality • Easy to cut • Outstanding flatness • Resistant to chemical attacks • Refractive index finely tuned to microscopes • Low autofluorescence • Easy to separate in automatic cover-slipping equipment thanks to its protective coating • Precise thickness control • Resistance to environmental conditions ensures high durability • Good cell growth • Thicknesses available for high-performance applications Technical Data Dimensions : 410 mm x 435 mm 410 mm x 415 mm 410 mm x 710 mm Thicknesses : 0.10 mm up to 0.21 mm Luminous transmittance ​τvD65 (d = 0.15 mm) : 91.7% Coefficient of mean linear thermal expansion α (20 °C; 300 °C) (static measurement) : 7.2 ⋅ 10-6 K-1 Transformation temperature Tg : 557 °C Dielectric constant εr at 1 MHz : 6.7 Refractive index nD : 1.5230 Refractive index ne : 1.5255 Density ρ (annealed at 40 °C/h) : 2.51 g/cm3