Multiple choice

Name the chemical used for removing air bubbles from glass during its manufacture.

  1. Soda ash

  2. Feldspar

  3. Potassium carbonate

  4. Arsenious oxide
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In glass manufacturing, soda ash (sodium carbonate) serves multiple crucial functions. One of its primary roles is to act as a flux that helps remove air bubbles from the molten glass, ensuring clarity and structural integrity. It lowers the melting temperature of silica and helps eliminate gaseous impurities that would otherwise create defects.

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