Hóa chất Thymolphthalein Merck 1081750100 (C₂₈H₃₀O₄, chai thủy tinh 100g) DEEP52 https://yeuhangduc.vn/

19,020,540₫

Mô tả

CAS #: 125-20-2

EC number: 204-729-7 

Hill Formula: C₂₈H₃₀O₄

Molar Mass: 430.54 g/mol

Identity (UV/VIS-Spectrum): passes test

Appearance: White to almost white powder, eventually slightly yellowish.

Clarity of solution (1 g/l; ethanol): 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: pH 9.0 - pH 10.5 colourless - blue

Transition range (according to ACS): passes test

Transition interval (according Reag. Ph. Eur.): passes test

Loss on drying (110 °C): ≤ 1 %

 Hóa chất Thymolphthalein Merck 1081750100 (C₂₈H₃₀O₄, chai thủy tinh 100g) DEEP52 https://yeuhangduc.vn/