Thymolphthalein Indicator Acs
ürün Kodu : 108175.0005Sorunuz!
108175.0005
Thymolphthalein indicator ACS
Ürün bilgisi
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
Kimyasal ve fiziksel veri
Solubility
(20 °C) practically insoluble
Melting point
253 °C
Molar mass
430.54 g/mol
Bulk density
400 kg/m3
Güvenlik bilgisi
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.
Spesifikasyonlar
Appearance
black to almost black 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 %