Molecular Formula | BrNaO |
Molar Mass | 118.89 |
Storage Condition | 0-6°C |
UN IDs | 1479 |
Hazard Class | 5.1 |
Packing Group | II |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Application | hypobromate oxidation is a commonly used method for the detection of ammonia nitrogen in seawater or high salinity water, by expanding the concentration of the oxidant (potassium bromate-potassium bromide oxidant stock solution) and the developer (sulfanilamide solution, dihydrochloride-1-neethylenediamine solution) to 5 times of the original, the upper limit of determination of ammonia nitrogen was obviously increased from 0.5 mg/L to 2 mg/L. The expansion of the determination range reduces the requirements of the method on water quality and environment, which makes the experiment more simple and convenient, especially suitable for the determination of ammonia nitrogen concentration higher than 0.3 mg/L water samples. |
Use | sodium hypobromate can be used as a synthetic intermediate in pharmaceutical and chemical industry. |
preparation | part of the sodium hydroxide is dissolved in water, cooled to below 10 °c, bromine is added, and the temperature is kept below 10 °c, sodium hypobromate solution was obtained. |
method of production | 1.05 ml of water, 42g (mol) of sodium hydroxide, thermometer and dropping funnel in a 1L three-neck round-bottom flask. Cool to -5 °c with an ice bath. Under stirring, 43G (0.269mol) of bromine was added dropwise at a rate to keep the temperature of the solution below 0 °c for about 5min, which was used as soon as possible for the next reaction. |