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

l of max. ABS in NaOH 0,1 mol/l........................................... 433-439 nm

A 1%, 1 cm, lmax..............................................................................>450

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

MAX. IMPURITIES

pH transition inteRval:

Red........................................................................................................1,2

Yellow....................................................................................................2,8

Insoluble matter in H2O......................................................................... p/t.

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