Concentrated sulphuric acid

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By titanium dioxide production sulphuric acid is needed as an inlet raw material. Sulphuric acid is produced for internal use and for the market.

Characteristic Value of characteristic Control method Comment
H2SO4 ( % ) 96 – 98 Internal method Depends of season (W/S)
potentiometric titration
Fe ( mg/l ) max. 75 Internal method Spectrofotometric
Residue on Ignition ( mg/l ) max. 550 Internal method gravimetric
Permanganate index
KMnO4 ( mg/l )
max. 80 Internal method Volumetric



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Other concentrations of sulphuric acid