Özdeşlik (UV/VIS-Spectrum) | Testi geçer |
Clarity of solution (1 g/l; ethanol) | Testi geçer |
1st transition range | pH 1.2 - pH 3.0 brownish orange - yellow |
2nd transition range | pH 6.5 - pH 8.0 brownish yellow - red violet |
Absorption maximum λ 1 max. (buffer pH 1,2) | 503 - 506 nm |
Absorption maximum λ 2 max. (buffer pH 3,0) | 430 - 435 nm |
Absorption maximum λ 3 max. (buffer pH 6.5) | 430 - 435 nm |
Absorption maximum λ 4 max. (buffer pH 8,0) | 557 - 560 nm |
Spec. Absorptivity A 1%/1cm (λ 1 max.; 0.005 g/l; buffer pH 1,2; calc. on dried substances) | 900 - 1150 |
Spec. Absorptivity A 1%/1cm (λ 2 max.; 0.005 g/l; buffer pH 3,0; calc. on dried substances) | 550 - 650 |
Spec. Absorptivity A 1%/1cm (λ 3 max.; 0.005 g/l; buffer pH 6.5; calc. on dried substances) | 550 - 650 |
Spec. Absorptivity A 1%/1cm (λ 4 max.; 0.005 g/l; buffer pH 8,0; calc. on dried substances) | 1000 - 1250 |
Loss on drying (110 °C) | ≤ 1 |
Transition range (according to ACS) | pH 5,8 - pH 8,2 yellow - red |
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