| abstract |
(57) [Problem] To provide an amorphous calcium silicate composite oxide, a method for producing the same, and an antacid. SOLUTION: The formula (1) [(Al 2 O 3 ) x .CaO. (SiO 2 ) y ] · mH 2 O (1) (where x is a number in the range of 0.5 ≦ x ≦ 10, y is a number in the range of 0.5 ≦ y ≦ 4, and m is 2 ≦ m ≦ 60 Indicates a number in the range. The amorphous calcium silicate composite oxide having a uniform composition represented by the formula (1), a simple and efficient production method thereof, and an antacid containing the composite oxide as an active ingredient. |