Low temperature lead and cadmium-free frits

Details Low temperature lead and cadmium-free frits Low temperature lead and cadmium-free frits

C - Chemistry, Metallurgy

03

C

261/15

C03C 8/02 (2006.01) C03C 8/06 (2006.01)

Patent

CA 1248556

Abstract of the Disclosure This invention relates to the production of frits especially suitable for use in contact with foods. The frits are essentially free from cadmium and lead and consist essentially, in weight percent on the oxide basis, of: Li2O 3-4 Al2O3 36.75-8.75 Na2O 0.75-3 SiO2 48-55 BaO 3.5-9 5 ZrO2 6.75-10.5 B2O3 14-17.5 F 3.5-4

505605

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