PRODUCT SPECIFICATION
TEST | SPECIFICATION |
Appearance | Powder |
Color | Blue to Black color |
Solubility in water | Soluble |
Dye Content | >63% |
Maximum Absorption at γ max (nm) | 610(±5) nm |
Volatile Matter at 105°C | 7% Max |
Absorbance (%) | Min. 450 % |
Iron | <250ppm |
Heavy Metal | Passes Test |