FIELD: medicine.
SUBSTANCE: method of disinfection and/or preservation, and/or reduction, and/or the control of microbial contamination of aqueous dispersions and/or aqueous suspensions of natural and/or precipitated calcium carbonate consists in carrying out: a) at least one stage of OH- ion concentration increase in the specified aqueous dispersions and/or suspensions up to a value which exceeds or is equal to 1×10-2 mole/l, and b) at least one stage of dispersion and/or grinding of the specified aqueous dispersions and/or suspensions. While carrying out the stage b), using a dispenser and/or a grinding substance is possible. The method can additionally contain a stage of OH- ion concentration decrease in the specified aqueous dispersions and/or suspensions up to a value which is lower or equal to 1×10-2 mole/l following the stage a), and a stage which implies introducing at least one biocidal substance, and/or a physical disinfecting process is carried out.
EFFECT: preparation of aqueous dispersions or aqueous suspensions characterised by high Brookfield viscosity stability.
28 cl, 35 tbl, 8 ex
