Assay (as C7H6O2)..................................................................99,5-100,5%

Arsenic (as As), not more than........................................................ 3 ppm

Heavy metals (as Pb), not more than............................................ 10 ppm

Lead, not more than..................................................................... 2,0 ppm

Polycyclic acids.................................................................................... p/t.

Easily carbonizable substances........................................................... p/t.

Easily oxidizable substances................................................................ p/t.

Organic chlorine (as monochlorobenzoic acid), not more than........ 0,3 %

Residue on ignition, not more than................................................ 0,05 %

Solidification point................................................................. 121,5-123°C

Water, not more than........................................................................ 0,7 %

Loss on drying, not more than......................................................... 0,5 %

pH of aqueous solution (*).................................................................... p/t.

Mercury (Hg), not more than........................................................... 1 ppm