silica
12
7.3
- noun
- /ˈsɪlɪkə/
- Specialized
:
sílice
- The walls are almost pure silica, built up in layers half a meter thick.
- fused silica
- silica gel
- silica fiber
Some people looking at rice husks, which are silica rich as well.
- Some people looking at rice husks, which are silica rich as well.
Examples
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Alternatives like silica glass are too unpredictable to be relied on as engineering materials.
Academic text (1993) -
It heated up the concrete and the silica in the concrete to create this shiny material, which is now effectively natural glass.
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Karen, get me the silica gel.
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Silica and lots of static.
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At that time, it was impossible to imagine how rapidly silica fiber technology would evolve.
Academic text (1993) -
But fused silica cuts like a dream.
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The greatest hazard of working in these tunnels was exposure to enormous quantities of silica dust.
Academic text (2015) -
For ours and resin castings, adding colloidal silica makes the solution thicker.
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Phytoliths (literally "plant-stones") are microscopic silica bodies found in the stems and leaves of plants.
Academic text (2006) -
The manufacturer uses silica to create strong and durable glass products.
Synonyms
A hard white or clear material found in sand and quartz
A hard white or clear material that makes up sand and glass
A very fine powder made from a hard stone used to polish and filter things
Compounds
- Specialized
1
5.8
A dry material of small grains that soaks up moisture from things like shoes
Surface Forms
Etymology
Silica comes from an old word meaning 'flint' and shares its root with silicon. Because it names the hard, glass-like material found in sand and quartz, that's why silica is used to make glass and ceramics.