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色・発色
opacifier
Japanese: 乳濁剤
Components that make glass appear white and opaque (fluorite, sodium fluoride, calcium phosphate, etc.). Used to make opal (opaque) glass.
A substance that makes glass appear white and cloudy. Used to make opal (opaque) glass.
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An opacifier is a substance that turns glass white and cloudy, making it opaque to translucent. Fluorite (CaF₂), sodium fluoride, and calcium phosphate are among the substances used.
These form microcrystals or tiny particles within the glass, which scatter light to create a milky white appearance. Opal (opalcent) glass is made using this mechanism.
This entry is written in Japanese by Rei Chikaoka and translated for readers outside Japan. If something reads oddly, the original is the source of truth.