44565
Synonym(s):
4-([2,4-Dihydroxyphenyl]azo)benzenesulfonic acid sodium salt, Acid Orange 6, Chrysoin, Resorcinol yellow
Properties
indicator grade
sulfated ash, 40-60%
UV/Vis spectroscopy: suitable, titration: suitable
≤13.0% loss on drying
11-13
488-492 nm in 0.1 M NaOH, ≥500 at 1% in 0.1 M NaOH (1 cm)
[Na+].Oc1ccc(\N=N\c2ccc(cc2)S([O-])(=O)=O)c(O)c1
1S/C12H10N2O5S.Na/c15-9-3-6-11(12(16)7-9)14-13-8-1-4-10(5-2-8)20(17,18)19;/h1-7,15-16H,(H,17,18,19);/q;+1/p-1/b14-13+;
COEZWFYORILMOM-IERUDJENSA-M
Description
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Supelco
Tropaeolin O sodium salt
1.59267
Metanil yellow
Sigma-Aldrich
195235
Orange II sodium salt
69143
-
HPLC: suitable, gas chromatography (GC): suitable
analytical standard
10 (20 °C, 10 g/L in H2O)
Dye content, ≥85%
488-492 nm in 0.1 M NaOH
483 nm
11 - Combustible Solids
WGK 3
Not applicable
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Analytical Reagents
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