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LC5471 Thymolphthalein
indicator ACS,Reag. Ph Eur

 

Order number Packaging Quantity Price €
AC32471 Glass bottle 5 g 19.8
AC32471 Glass bottle 25 g 58.05
AC32471 Glass bottle 100 g 189.00

 

Product information
Grade ACS,Reag. Ph Eur
Hill Formula C28H30O4
HS Code 2932 29 85
EC number 204-729-7
Molar mass 430.54 g/mol
CAS number 125-20-2

 

Chemical and physical data
Solubility (20 °C) practically insoluble
Melting point 253 °C
Molar mass 430.54 g/mol
Bulk density 400 kg/m3

 

Safety information
Storage class 10 – 13 Other liquids and solids
WGK WGK 3 highly water endangering
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

 

Specifications
Appearance White to almost white powder, eventually slightly yellowish.
Identity (UV/VIS-Spectrum) passes test
Absorption maximum λ max (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
pH 9.0 – pH 10.5 colourless – blue
Loss on drying (110 °C) ≤ 1 %