Analytical Method: Iron (total) in zinc powder

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. 114549  Spectroquant® Iron Cell Test
Cat.No. 114896  Spectroquant® Iron Cell Test*
Cat.No. 114761  Spectroquant® Iron Test
Cat.No. 100796  Spectroquant® Iron Test
Cat.No. 100456  Nitric acid 65 % for analysis
Cat.No. 100317  Hydrochloric acid 37 % for analysis
Cat.No. 116754  Water for analysis
*not compatible with Move 100
Sample preparation:
In a 250-ml glass beaker dissolve about 100 mg of the sample in a mixture of 5 ml hydrochloric acid 37 % and
1 ml nitric acid 65 %. To prevent a splashing loss the glass beaker has to be covered with a clock glass. Then evaporate the solution to a moist crystalline residue. Dissolve this residue in water for analysis, transfer it into a 1000-ml volumetric flask, fill up to volume and mix.
Determine with the above mentioned test kits.

Iron (total) content in %  =   analysis value in mg/l Fe x 100
weight of sample in g





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