Specification Test Results

• Appearance:
  Green to Dark green powder to crystal
• Absorbance:
  min. 0.600 (10 mg/L, HCl, 307.0 to 311.0 nm) (calcd.on dried substance)
• Solubility in dilute HCl:
  almost transparency
• Drying loss:
  max. 3.0 %
• Ignition residue (Sulfate):
  63.0 to 67.0 % (after drying)