Tay Business Caustic Soda Certificate & Compositions

Caustic Soda Flake Compositions

Composition	Unit	ISIRI 364 Spec	Tay Business Spec
NaOH	%w/w	Min 98	Min 98
(CO3)2- (as Na2CO3)	%w/w	Max 1	Max 0.5
Cl- (as NaCl)	%w/w	Max 0.06	Max 0.02
(S04)2- ( as Na2SO4)	%w/w	Max 0.01	Max 0.005
SiO2	%W/W	Max 0.02	Max 0.005
Fe	PPM	Max 30	Max 7
Insoluble in water	%w/w	Max 0.1	Nil
Al (as AL2O3)	PPM	Max 20	Max 20
Hg	PPM	Max 0.2	Nil
Heavy metals (as pb)	PPM	Max 20	Max 5
As (as As203)	PPM	Max 0.2	Nil
Appearance	--	OK	OK