Thymolphthaleine ACS, Reag. Ph. Eur. indicator
Leverandør: Merck
Ratings:
Ingen bedømmelse
Samlet vurdering
Gennemsntilig vurdering
M-Clarity™ quality level = MQ200
1.08175.0025EA
1480
DKK
1.08175.0025
1.08175.0100
1.08175.0005
Thymolphthaleine ACS, Reag. Ph. Eur. indicator
Thymolphthaleine
Formel:
C₂₈H₃₀O₄ Molekylvægt: 430,54 g/mol Smeltepunkt: 253 °C Opbevaringstemperatur: Stue temperatur |
MDL Number:
MFCD00005909 CAS-nummer: 125-20-2 EINECS: 204-729-7 Merck Index: 12,09542 |
Specifikationer Testresultater
Appearance | White to almost white powder, eventually slightly yellowish. |
Identity (UV/VIS-Spectrum) | passes test |
Absorption maximum λmax. (buffer pH 10.5) | 592 - 596 nm |
Spec. Absorptivity A 1%/1cm (λmax; 0.01 g/l; buffer pH 10.5; calculated on anhydrous substance) | 800 - 900 |
Transition range (according to ACS) | passes test |
Transition range | pH 9.0 - pH 10.5 colourless - blue |
Loss on drying (110 °C) | ≤ 1 % |
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