What is the name of the complex that forms when silicon reacts with ammonium Molybdate ?

Some forms of silica (usually polymeric) will not react with ammonium molybdate and must be digested with sodium bicarbonate to be converted to a reactive form. Silicic acid reacts with water and hydrates as follows: H2SiO3 + 3H2O ç H8SiO6. This hydrated silicic acid reacts with molybdate in the presence of acids to form