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EC number: 236-704-1
CAS number: 13465-77-5
hydrolyses very rapidly to hexahydroxydisilane and HCl. Further
hydrolysis of the Si-Si bonds in hexahydroxydisilane is expected to
happen rapidly and produces monosilicic acid. At concentrations above
about 100-150 mg/l (measured as SiO2 equivalents),
condensation products of monosilicic acid can also form. At
concentrations >100-150 mg/l of SiO2, monomeric
monosilicic acid condenses into colloidal particles of polysilicic acid
(silica sol) or a highly cross-linked network (silica gel).
Hexahydroxydisilane is also likely to form condensation products
(polyhydroxy-polysilanes) at similar concentrations (in terms of SiO2
These hydrolysis products are
inorganic substances which enter natural biogeochemical cycles
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