The Chemistry of Glass Clarity: Managing the Iron Curve

Iron Oxide Content

The presence of iron oxide (Fe2O3) gives glass a greenish tint. We discuss how to achieve 'extra-clear' status by reducing iron to below 0.01%.

Refractive Index Optimization

For B2B buyers of display cases and high-end tumblers, a higher refractive index is key to that brilliant, 'expensive' look.

Verification Methods

Spectrophotometry is used to verify the light transmission across the visible spectrum, ensuring consistent quality across batches.

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