101322 Methyl orange (C.I.13025) indikator ACS,Reag. Ph Eur
atau disebut juga : 4-Dimethylaminoazobenzene-4'-sulfonic acid sodium salt, Gold orange, Helianthine, Orange III
Simpan pada +5°C hingga +30°C.
Identity (UV/VIS-Spectrum) | passes test |
Clarity of solution (1 g/l; water) | passes test |
Transition range | pH 3.1 - pH 4.4 pink - orange yellow |
Absorption maximum λ 1 max. (buffer pH 3.1) | 501 - 505 nm |
Absorption maximum λ 2 max. (buffer pH 4.4) | 466 - 471 nm |
Spec. Absorptivity A 1%/1cm (λ 1 max.; 0.01 g/l; buffer pH 3.1; calc. on dried substances) | 1000 - 1150 |
Spec. Absorptivity A 1%/1cm (λ 2 max.; 0.01 g/l; buffer pH 4.4; calc. on dried substances) | 730 - 850 |
Loss on drying (110 °C) | ≤ 5 % |
Transition range (according to ACS) | passes test |
Sensitivity test | passes test |