Calcium preparation and method of production thereof

摘要

A stable Ca preparation in solution form even at high concentration is provided. The aqueous preparation of Ca includes water, Ca, compounds of Formula I and Formula II. Most of Ca is in non-ionic form and forms a complex. In the complex, Ca binds to the compound(s) of Formula I and/or Formula II in a state that basic structures of them are kept. At least partially, the complex forms colloidal particles. The aqueous preparation is transparent. pH is equal to or higher than that of slightly acid;;
[A1, A2, A3, A4, A5 and A6 are independently O− or OX. X represents a monovalent or polyvalent cation].

主权项

1. An aqueous preparation of calcium comprising water, calcium, a compound of a Formula I, and a compound of a Formula II as constituent elements,
wherein 98% or more of the calcium is in a non-ionic calcium form and forms a complex, wherein in the complex, the calcium binds to the compound of the Formula I and/or the compound of the Formula II in a state that basic structures of these compounds are kept, and at least a part of the complex forms colloidal particles having an average particle diameter of 100 nm or less, and wherein the aqueous preparation of calcium is a transparent aqueous preparation having a pH value ranging from 4 to 13; wherein, A1, A2, A3, A4, A5 and A6 are independently O— or OX, X represents a monovalent or polyvalent cation, and the Xs are the same or different when multiple OXs exist.