Vanillic acid 97+%

Specification Test Results

• Appearance:
  White to yellow to beige Powder
• Infrared spectrum:
  Conforms
• Melting point:
  208 to 214 °C
• HPLC:
  ≥97.0 %
• GC:
  ≥99.0 %
• Color scale:
  ≤50 APHA
• Free acid:
  ≤0.5 % (as Crotonic acid)
• Suitability:
  (for use with Dithizone) Passes test
• Substance darkened by H2SO4:
  ≤5 APHA
• Free chlorine:
  ≤5 ppm
• Calcium (Ca):
  ≤0.1 ppm
• Copper (Cu):
  ≤0.02 ppm
• Iron (Fe):
  ≤0.1 ppm
• Lead (Pb):
  ≤0.02 ppm
• Magnesium (Mg):
  ≤0.05 ppm
• Potassium (K):
  ≤0.1 ppm
• Sodium (Na):
  ≤0.2 ppm
• Zinc (Zn):
  ≤0.05 ppm
• Impurity:
  ≤0.005 % Carbon tetrachloride
• Total phosphorus (P):
  ≤0.1 ppm
• Total silicon (Si):
  ≤0.05 ppm
• Total sulfur (S):
  ≤0.5 ppm