Question

what is ph scale and solubility product?

Answer 1

ph scale is representation of colors that tells about concentration of acids or bases 0 to 7 it is acids and 7 is neutral and then 7 to 14 bases

Answer 2

The solubility product of salt changes with temperature and the concentration of the ions present in solution. In oilfield brines, if the surface solubility produced is smaller than their solubility product under down-hole formation, scale formation would occur. Under such conditions, the water is called ‘unstable water.’ The Stability Index (SI) is used to predict the tendency of ions to form scales from oilfield brines which are highly corrosive and encountered during drilling process.
In chemistry, pH is a logarithmic scale used to specify the acidity or basicity of an aqueous solution. It is approximately the negative of the base 10 logarithm of the molar concentration, measured in units of moles per liter, of hydrogen ions.