Description

TPTZ method is most common method for low range Iron determination from the sample.  Chemicals full name 2,4,6- Tris-(2’ – Pyridyl )-s-Triazine ( TPTZ ) or  also can be use like 2,4,6-Tripyridyl-s-triazineApplication: The test may be utilized to monitor the effectiveness of corrosion mitigation programs and to keep track of general corrosion within a fire sprinkler system. Ferrous iron is oxidized to ferric iron, causing a red appearance in the water within the test ampoule. The degree of redness is a direct relationship to the amount of dissolved iron within the sample water. Dissolved iron is a good indication of the general occurrence of total corrosion occurring within a fire sprinkler system.Dose: 2,4,6- Tris-(2’ – Pyridyl )-s-Triazine ( TPTZ ) or  also can be use like 2,4,6-Tripyridyl-s-triazine Solution of (TPTZ), .001 M were prepared by dissolving 0.312 gram of compound in a view drops of hydrochloric acid and diluting to 1 ltr with water.   2,4,6-Tripyridyl-s-triazine Solution of (TPTZ) is useful for the calorimetric determination of iron. The Intense violet colour formed by TPTZ with iron(II) is due to the ion {Fe(TPTZ)2}+2, with only two of the three pyridyl group of each TPTZ ligand attached to the Iron atom.   This reagent is  also used for determination of iron in silicates, burnt refractories, and limestone etc   Note: