Analytical Method: Aluminium (total) in building materials

Instruments and Reagents:

Cat.No. 173016 Spectroquant® VIS Spectrophotometer Prove 100 or

Cat.No. 173017 Spectroquant® UV/VIS Spectrophotometer Prove 300 or

Cat.No. 173018 Spectroquant® UV/VIS Spectrophotometer Prove 600 or

Cat.No. 109748 Spectroquant® Photometer NOVA 30 or

Cat.No. 109751 Spectroquant® Photometer NOVA 60 or

Cat.No. 173632 Spectroquant® Colorimeter Move 100

Cat.No. 114946 Rectangular cells 10 mm and/or

Cat.No. 114947 Rectangular cells 20 mm and/or
Cat.No. 114944 Rectangular cells 50 mm
Cat.No. 100594 Spectroquant® Aluminium Cell Test
Cat.No. 114825 Spectroquant® Aluminium Test
Cat.No. 104885 Potassium hydrogen sulfate for analysis
Cat.No. 109535 Universal Indicator strips pH 0 - 14
Cat.No. 116754 Water for analysis
 
Sample preparation - total content:
Place 200 mg of the finely powdered material along with 5 g potassium hydrogen sulphate in a DURAN® test tube, mix and heat gently in a bunsen flame until a clear orange - colored melt is obtained and no more gas is given off. Allow to cool, add water for analysis to dissolve most of the residue and transfer the suspension to a
100-ml volumetric flask. Make up to the mark with water for analyis and mix well.
Filter through a paper filter and adjust the pH to 3 - 8.
 
Analysis:
Determine with the above mentioned test kits.
 
Calculation:
Aluminium (total) content in % = analysis value in mg/l Al x 0.05

Materials

     
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