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Contact SupplierAppearance | Reddish powder |
Visual transition range | From pH 6.8 (Yellow) - 8.2 (Red) |
Absorption maxima at pH 6.5 (λ1) | 430 - 435 nm |
Absorption maxima at pH 8.2 (λ2) | 557 - 560 nm |
Loss on drying (at 110°C) | Max 5.0% |
Clarity of solution | Passes ACS test |