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

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

MAX. IMPURITIES

pH transition inteRval:

pink........................................................................................................1,2

yellow....................................................................................................2,8

yellow....................................................................................................8,0

blue........................................................................................................9,2

Transition inteRval according to ACS.................................................... p/t.

Insoluble matter in C2H5OH.................................................................. p/t.

Loss on drying at 135°C....................................................................10 %

Residue on ignition (as SO4)............................................................. 0,5 %