1.01307
Titan yellow (C.I. 19540)
metal indicator, Reag. Ph Eur
Synonym(s):
Titan yellow (C.I. 19540), Clayton yellow, Naphthamine G, Thiazole yellow
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About This Item
Product Name
Titan yellow (C.I. 19540), indicator Reag. Ph Eur
SMILES string
[Na+].[Na+].[S](=O)(=O)([O-])c1c2[s]c(nc2ccc1C)c3ccc(cc3)N\N=N\c4ccc(cc4)c5[s]c6c(n5)ccc(c6[S](=O)(=O)[O-])C
InChI
1S/C28H21N5O6S4.2Na/c1-15-3-13-21-23(25(15)42(34,35)36)40-27(29-21)17-5-9-19(10-6-17)31-33-32-20-11-7-18(8-12-20)28-30-22-14-4-16(2)26(24(22)41-28)43(37,38)39;;/h3-14H,1-2H3,(H,31,32)(H,34,35,36)(H,37,38,39);;/q;2*+1/p-2
InChI key
CZIRZNRQHFVCDZ-UHFFFAOYSA-L
agency
reag. Ph. Eur.
form
solid
loss
≤8% loss on drying, 110°C
pH
5.1 (20 °C, 10 g/L in H2O)
mp
>300 °C (decomposition)
solubility
29 g/L
bulk density
310 kg/m3
λmax
398-402 nm (buffer pH 7.0)
storage temp.
2-30°C
Quality Level
Related Categories
Analysis Note
Absorption maximum λmax. (buffer pH 7.0): 398 - 402 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.01 g/l; buffer pH 7.0; calc. on dried substance): ≥ 350
Transition range: pH 12.0 - pH 13.0Yellow - orange
Loss on drying (110 °C): ≤ 8 %
Suitability as reagent (for magnesium): passes test
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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