Description

Appearance..............................................white to light grey, cryst. powder 
pH-value (0,1 M, H2O)..........................................................................4,0-6,5 
Solution (10 % in H2O)........................................................clear,colourless 
Oxidized part...........................................................................................≤0,2 % 
Melting point........................................................................................40-45 °C 
Heavy metals (as Pb)....................................................................≤0,0001 % 
260 nm.........................................................................................................≤0,4 
280 nm.........................................................................................................≤0,2