Assertion: precipitated silica | /r/AtLocation | the form of silicic acid
Facets:
value: primarily
type: DEGREE
value: at low aqueous concentrations
type: OTHER
Source sentences:
text: At low aqueous concentrations, dissolved silica is primarily in the form of silicic acid, H 4 SiO 4 , a weak acid that, in turn, dissociates in two steps: H 4 SiO 4 0 ↔ H 3 SiO