H4SiO4,aq H4SiO4(0) H4SiO4(aq) Si(1)O(4)H(4)+(0) ref:Stef01 Dec.2001 -312920. -348676. 45.100 18.7299 -21.2600 18.6200 -1.2001 58.0306 -20.7899 0.0869 0.