Carmine (C.I. 75470) MIC

C₄₄H₃₇AlCaO₂₇·3H₂O
Alum lacquer of carminic acid
M.W: 492.38  CAS: 1390-65-4  EC: 215-724-4  TARIC: 32030090

P: P102+P202  

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• Appearance Dark pink to red powder
• Assay 50 – 55%
• Loss on drying ? 20%
• Lambda max in 0.1N Sodium Hydroxide (NaOH) 531 – 563nm
• Residue on calcination ? 12%
• Arsenic (As) ? 0.0001%
• Lead (Pb) ? 0.001%
• Suitable for use in Orth’s Lithium carminic technique.

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