Identity..............................................................................................IR p/t.

l1 of max. ABS in NaOH 0,1 mol/l.......................................... 564-568 nm

l2 of max. ABS in NaOH 0,1 mol/l.......................................... 605-609 nm

A 1%, 1cm, l1 max.............................................................................>625

A 1%, 1cm, l2 max.............................................................................>525

T.L.C..................................................................................................... p/t.

MAX. IMPURITIES

pH transition interval:

yellow....................................................................................................5,5

red-violet...............................................................................................6,8

Insoluble matter in CH3OH................................................................... p/t.

Loss on drying at 135°C......................................................................5 %

Sensitivity as Al reagent....................................................................... p/t.