2AlCl3+3Na2SiO3--->Al2(SiO3)3↓+6NaCl
2Al3+ +6Cl- +6Na+ +3SiO3 2- --->Al2(SiO3)3↓+6Na+ +6Cl-
2Al3+ +3SiO3 2- --->Al2(SiO3)3↓