Blue-green glass

Details Blue-green glass Blue-green glass

C - Chemistry, Metallurgy

03

C

C03C 3/087 (2006.01) C03C 4/02 (2006.01)

Patent

CA 2492531

A blue-green colored glass composition includes a base portion, such as a conventional soda-lime-silica base, and major colorants. In one embodiment, the major colorants include 0.7 to 0.9 weight percent total iron (Fe2O3), 0.2 to 0.3 weight percent FeO, and 0 to 5 ppm CoO. The glass is characterized by a dominant wavelength in the range of 490 nm to 495 nm and an excitation purity in the range of 3% to 11%. The glass of the invention can be essentially free of Se.

Une composition de verre cyan comprend une partie base, telle qu'une base classique de soude-chaux-silice, et de colorant majeurs. Dans un mode de réalisation, les colorants majeurs contiennent 0,7 à 0,9 % en poids total de fer (Fe2O¿3?), 0,2 à 0,3 % en poids de FeQ, et 0 à 5 ppm de CoO. Ledit verre se caractérise par une longueur dominante de l'ordre de 490 nm à 495 nm et une pureté d'excitation de l'ordre de 3% à 11%. Le verre de l'invention peut être sensiblement exempt de Se.

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