Minimum assay.............................................................................. 99,0 %

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

Melting range................................................................................ 88-90°C

pH of 5% solution........................................................................ 9,5-10,5

MAX. IMPURITIES

Insoluble matter in H2O................................................................... 0,01 %

Residue on ignition (as SO4)........................................................... 0,05 %

Water (H2O)....................................................................................... 0,2 %

Chloride (Cl).................................................................................. 0,005 %

Sulphate (SO4)................................................................................ 0,01 %

Ca................................................................................................. 0,001 %

Cd............................................................................................... 0,0005 %

Co............................................................................................... 0,0005 %

Cr................................................................................................ 0,0005 %

Cu............................................................................................... 0,0005 %

Fe................................................................................................ 0,0005 %

K................................................................................................... 0,005 %

Mg................................................................................................ 0,001 %

Na................................................................................................. 0,005 %

Ni................................................................................................ 0,0005 %

Pb............................................................................................... 0,0005 %

Zn............................................................................................... 0,0005 %