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Research, Technology, Methods > chemical substances > chemical compounds > inorganic compounds > oxides > silica

Research, Technology, Methods > chemical substances > chemical compounds > inorganic compounds > silicon compounds > silica

Preferred Term:

silica

Definition:

Transparent, tasteless crystals found in nature as agate, amethyst, chalcedony, cristobalite, flint, sand, quartz, and tridymite. The compound is insoluble in water or acids except hydrofluoric acid.

Concept Schemes:

NALT Core
NALT Full

Broader Concept:

silicon compounds, oxides

Narrower Concepts:

quartz
silica gel

Entry Terms:

silicon dioxide
cristobalite

URI:

https://lod.nal.usda.gov/nalt/56445

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RDF/XMLCreated 2006-01-19, last modified 2018-10-22

Closely Matching Concepts:

http://id.loc.gov/authorities/subjects/sh85122495

Exactly Matching Concepts:

http://id.agrisemantics.org/gacs/C11345
http://aims.fao.org/aos/agrovoc/c_14283
http://id.cabi.org/cabt/106929
http://id.loc.gov/authorities/subjects/sh85122495