Clarification of glass color

01 January 1970 0 6K Report

Hello

I am in the process of making laboratory glass, but unfortunately, with all my efforts, I have not yet succeeded in achieving transparent glass. I have used the following methods and compounds to make glass

Silicon dioxide 50%, sodium carbonate 38%, dolomite 8%, feldspar 2.5%, sulfate 0.7%, coke 0.0%, lime 1.5%

The material is heated at a temperature of 1450 degrees Celsius for 3 hours in an electric sphere and then cooled to room temperature.

Please, if anyone has experience in this field, guide me to solve this problem.

Thank you in advance for your time.

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