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O8126

Sigma-Aldrich

Orange II sodium salt

Dye content ~85 %

Synonym(s):

4-(2-Hydroxy-1-naphthylazo)benzenesulfonic acid sodium salt, Acid Orange 7, Acid Orange A, Orange II, Tropaeolin 000 No. 2

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About This Item

Empirical Formula (Hill Notation):
C16H11N2NaO4S
CAS Number:
633-96-5
Molecular Weight:
350.32
Colour Index Number:
15510
Beilstein/REAXYS Number:
3898201
EC Number:
211-199-0
MDL number:
MFCD00011657
UNSPSC Code:
12171500
PubChem Substance ID:
329818923

composition

Dye content, ~85%

SMILES string

[Na+].Oc1ccc2ccccc2c1\N=N\c3ccc(cc3)S([O-])(=O)=O

InChI

1S/C16H12N2O4S.Na/c19-15-10-5-11-3-1-2-4-14(11)16(15)18-17-12-6-8-13(9-7-12)23(20,21)22;/h1-10,19H,(H,20,21,22);/q;+1/p-1/b18-17+;

InChI key

CQPFMGBJSMSXLP-ZAGWXBKKSA-M

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Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
028K3726
106K3692
056K3712
103K3725
094H3685

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Ruixia Yuan et al.
Journal of hazardous materials, 196, 173-179 (2011-10-05)
Sodium chloride is a common salt used during textile wet processes. Here a dual effect of chloride (i.e. inhibitory and accelerating effect) on azo dye (Acid Orange 7, AO7) degradation in an emerging cobalt/peroxymonosulfate (Co/PMS) advanced oxidation process (AOP) was
Hiromi Urano et al.
Biocontrol science, 16(3), 123-126 (2011-09-29)
The effect of sodium hypochlorite (NaOCl) on the decolorization of azo dye orange II (4-[(2-hydroxy-1-naphthalenyl) azo]-benzenesulfonic acid, monosodium salt) in aqueous solution was studied as a function of pH. The first-order rate constant of color reduction (k) was evaluated from
Xin Yang et al.
Huan jing ke xue= Huanjing kexue, 32(7), 1960-1966 (2011-09-20)
Persulfate oxidation is a recently emerging advanced oxidation process for the pollution control. Persulfate (PS) degradation of azo dye acid orange 7 (AO7) in an aqueous solution was studied in the presence of suspended granular activated carbon (GAC) at ambient
Mohammad A Behnajady et al.
Journal of nanoscience and nanotechnology, 13(1), 548-553 (2013-05-08)
In this study, monometallic and bimetallic silver and copper doped TiO2 nanoparticles were prepared by sol-gel method. Structural and morphological characterizations of prepared nanoparticles were performed by X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive
Deepika Parasuraman et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 13(10), 2507-2515 (2012-04-28)
We review our recent efforts utilizing poly(N-isopropylacrylamide)-co-acrylic acid (pNIPAm-co-AAc) microgels and their assemblies for the removal of an azo-dye molecule, 4-(2-Hyrodxy-1-napthylazo) benzenesulfonic acid sodium salt (Orange II), from aqueous solutions. First, the ability of dispersed, single microgels to remove Orange
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