FIELD: inorganic and analytical chemistry. SUBSTANCE: 2 ml of 2 M KBr solution, 5 ml of 0.1 M freshly prepared potassium persulfate solution, 10 ml phosphate buffer solution with pH 6-7 and 4 ml of 0.0001 M Bengal pink solution as a sensitizing agent are placed into amperometric cell. Also, two platinum microelectrodes are placed in solution and potential difference 0.5 V is supplied followed by effect by incandescent lamp light on solution at constant stirring rate. Bromine concentration in solution is determined by current value alternation. Invention allows to obtain bromine in weak acid and neutral solutions and can be used in analysis of materials. EFFECT: improved method of preparing. 4 dwg, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF DETERMINING ORGANICS | 2001 |
|
RU2183324C1 |
| METHOD OF DETERMINING FREE SALICYLIC ACID IN ASPIRIN | 2010 |
|
RU2456580C1 |
| METHOD FOR DEFINITION OF CAFFEINE CONTENT IN TEA AND COFFEE | 2009 |
|
RU2404428C1 |
| METHOD OF OBTAINING BROMINE FROM CHLORIDE SOLUTION | 2023 |
|
RU2811239C1 |
| METHOD FOR DETERMINING THE CONTENT OF DIPHENHYDRAMINE HYDROCHLORIDE (DIMEDROL) IN PHARMACEUTICAL SUBSTANCES AND PREPARATIONS | 2021 |
|
RU2781063C1 |
| METHOD FOR DETECTING NITROFURAN, PYRAZOLE, ISONICOTINIC ACID, THIOAMINO ACID DERIVATIVES IN DOSAGE FORMS | 2011 |
|
RU2479840C2 |
| METHOD FOR DETERMINATION OF MICROQUANTITY OF SUBSTANCES CONTAINING SULFUR CATALYZING IODINE-AZIDE REACTION | 0 |
|
SU1824549A1 |
| METHOD OF DETERMINING SODIUM THIOSULPHATE IN SOLUTIONS | 2013 |
|
RU2552311C2 |
| METHOD FOR DETERMINING CONTENT OF TOLPERISONE HYDROCHLORIDE IN SOLID DOSAGE FORM | 2023 |
|
RU2822628C1 |
| METHOD FOR DETERMINING TRACE IMPURITIES OF ARSENIC AND STIBIUM IN VEGETABLE MEDICAL MATERIAL | 2015 |
|
RU2591827C1 |
