bn:00071585n
Noun Concept
Categories: Refractory materials, Excipients, IARC Group 1 carcinogens, Oxides, Wikipedia articles incorporating a citation from the 1911 Encyclopaedia Britannica with Wikisource reference
EN
silica  silicon oxide  silicon dioxide  (SiO2)n  [SiO2]
EN
A white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechatelierite WordNet 3.0
English:
IV
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EN
A white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechatelierite WordNet 3.0 & Open English WordNet
Silicon dioxide, also known as silica, is an oxide of silicon with the chemical formula SiO2, commonly found in nature as quartz. Wikipedia
Any of the silica group of the silicate minerals. Wiktionary
Silica group of the silicate minerals. Wiktionary (translation)
A hard glassy mineral, SiO₂, occurring as quartz, sand, opal etc. Informally known as silica. Wiktionary
Silicon dioxide, silica. Wiktionary