bromate determination (In water)

Determination of bromate (in water)
Determination of bromate (in water)

Bromate acid is used in the production of various chemicals in the pharmaceutical sector, the dyeing sector and the chemical sector. It is generally obtained by adding sulphate acid to the barium bromate solution. The bromate acid decomposes at 100 degrees and turns into oxygen and bromine. The salts of bromate acid are called bromate.

When disinfecting drinking and utility water, bromate ion occurs. The bromate ion formed during ozonation is carcinogenic. Therefore, it is very necessary to make bromine and bromate analyzes in drinking and usage waters. If bromide is present in water during disinfection, some brominated compounds with carcinogenic properties are formed. Bromide salts, which are composed of bromine and free chlorine, are converted to bromate by ozonation and bromate pollution is seen in water.

Briefly, when ozone is used to disinfect drinking water, bromate and other brominated by-products are formed if water contains bromide. When drinking water containing bromate enters the body, it causes damage through kidney, liver and central nervous system. It also carries a risk of cancer.

The US Environmental Protection Agency (EPA) has also been focusing more on bromate in recent years and has set a limit of 0,01 ppm for this type of pollution. If the bromate in drinking water is 0,5 μg / l and lower, it has no adverse health effects. In addition, since bromate is formed as a result of ozonation in bromide containing water, it is recommended to use another disinfection method.

Determination of bromate in potable and potable water within the scope of chemical tests are carried out in authorized laboratories. These studies are based on the standards issued by domestic and foreign organizations. The standard for the determination of bromate in water is:

  • TS 266 Waters - Waters for human consumption

According to this standard, drinking water should contain no more than 10 μg / l bromate.