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Quality Requirements in Glass - making

High - quality soda ash is essential for producing high - grade glass. The purity of soda ash is crucial. Impurities in soda ash, such as iron oxide, can discolor the glass, leading to an undesirable tint. For example, even a small amount of iron can give the glass a greenish or brownish hue, which is unacceptable for clear glass products. Therefore, soda ash used in the glass industry typically has a high level of purity, often with strict limits on the amount of impurities allowed. Additionally, the particle size distribution of soda ash can also affect the melting process. Uniform particle sizes ensure consistent and efficient melting, contributing to the quality and reproducibility of the glass - making process.