SPECIFICATIONS

FIELD STAIN A

Appearance:				Dark Blue to Greenish Black to Grey Powder

Assay:					> 85%

Solubility:				Clear solution 
(0.1% WATER)			

Absorptivity 1%/ 1cm                    550 - 650
At λ max. 660.6 nm		            

Loss on drying:			< 8%
(110°C 1hr.)

Effective: 11/01/17