Titanium analysis wet-titration method
Does anyone know of a procedure for the manual titration of titanium metal dissolved in a solution of hydrofluoric acid / Ferric Sulphate?Nigel Gill, B.Sc MIMF AIEMA MRSC
Aerospace - Glasgow, South Lanarkshire, Scotland
I don't know of any titration for dissolved titanium. You could do it colorimetrically by taking a small sample of bath, adding some (say 20 ml)1:1 sulfuric acid, and heating strongly, in a fume hood of course, to white fumes. This is to drive off the fluoride as HF. Now, let the mixture cool, add it to about 400 ml water in a 500 ml volumetric flask, let this cool, then make up to the mark with water. Now take out a 10 ml portion, and add 1 ml of 3% hydrogen peroxide. A yellow color will develop, the intensity of which is proportional to the concentration of titanium. By comparing with standards made up in a similar way, you can get to the answer.
This would be a lot of work to set up, but once you do the initial work, routine analyses shouldn't take too long.
- The Bronx, New York
January 19, 2009
Does anyone know of a manual titration for the determination of dissolved titanium generated from an etch tank?
Aerospace. - Glasgow, Scotland
January 23, 2009
Aerospace - Yeovil, Somerset, UK
Textbook of Quantitative Inorganic Analysis
January 25, 2009
I stay with Dave that there is no known titration for titanium, maybe there is an indirect method.
- Brilon, Germany, EU
January 29, 2009
The problem with cations like Al3+ and Ti4+ is that they are very easily hydrolysed.
July 12, 2010