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Glass - Clarifiers
Applications of Haihui Antimony-based Materials
Introduction to Glass Clarifiers
Glass clarifiers are critical additives in glass manufacturing, playing a vital role in removing bubbles and impurities from molten glass. During the glass melting process, gases (such as oxygen, carbon dioxide, and water vapor) are naturally generated. If not eliminated, these bubbles remain in the final glass product, affecting its transparency, mechanical strength, and aesthetic quality.
Glass clarifiers work by eithe
The working principles of glass fining agents mainly include the following aspects: They release gas, which stirs the molten glass and promotes the merging and floating of small bubbles. They can also absorb gas, directly eliminating the bubbles that have been generated. Additionally, they reduce the viscosity of the molten glass, making it easier for bubbles to escape.
Glass clarifiers work by eithe
The working principles of glass fining agents mainly include the following aspects: They release gas, which stirs the molten glass and promotes the merging and floating of small bubbles. They can also absorb gas, directly eliminating the bubbles that have been generated. Additionally, they reduce the viscosity of the molten glass, making it easier for bubbles to escape.
Application Scenarios in Glass Industry
Haihui’s antimony-based glass clarifiers find extensive application across various types of glass. In architectural glass, they ensure clear windows and curtain walls free of visible bubbles. For container glass, these clarifiers guarantee the transparency and strength needed for glass bottles and jars used in food, beverage, and pharmaceutical industries. In optical glass, they meet the high clarity requirements essential for lenses, prisms, and optical instruments. Additionally, they support the production of specialty glass, including heat-resistant glass, glass ceramics, and electronic display glass.
Why Antimony-based Materials Excel as Glass Clarifiers
Antimony-based compounds, such as antimony trioxide (Sb₂O₃) and sodium pyroantimonate (Na₂H₂Sb₂O₇·nH₂O), are widely recognized as high-performance glass clarifiers. Their advantages include:
Bubble Elimination Efficiency
Antimony-based clarifiers react at high temperatures (typically 1200-1600°C) to release oxygen, which merges with small bubbles, making them rise rapidly to the surface and burst.
Stability
They maintain effectiveness across a wide range of glass compositions (e.g., soda-lime glass, borosilicate glass, and lead glass) and melting conditions.
Transparency Enhancement
Unlike some clarifiers that may tint glass, high-purity antimony-based materials minimize discoloration, ensuring the glass retains its clarity.
Environmental Compatibility
When used in controlled dosages, antimony-based clarifiers meet international environmental standards, supporting sustainable glass production.
Haihui’s Antimony-based Products for Glass Clarification
Luoyang Haihui New Materials Co., Ltd., with 23 years of expertise in antimony-based materials, offers a range of high-quality products tailored for glass clarification:
Our ultra-pure antimony trioxide (purity ≥99.5%) is a versatile clarifier, ideal for soda-lime glass (used in windows, containers) and borosilicate glass (used in heat-resistant cookware). It ensures uniform bubble removal and enhances glass brightness.
This product is specially designed for high-end glass applications, such as optical glass and display glass. It provides precise control over the clarification process, ensuring minimal impurities and optimal light transmittance.
Are antimony-based clarifiers safe for food-contact glass?
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Yes. When used in compliance with international standards (e.g., FDA, EU 10/2011), our products ensure glass containers meet food safety requirements, with no harmful migration.
Dosage depends on glass type, raw materials, and melting conditions. Our technical team provides customized recommendations based on your specific production parameters.
Absolutely. Our manufacturing processes adhere to ISO 14001 environmental management standards, and products comply with REACH and RoHS requirements.
Related Applications
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