Sulfonazo III salt

Name: Sulfonazo III salt
SKU: A10486.14

CAS: 68504-35-8 | C22H16N4Na4O14S4 | 780.583 g/mol

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25 g

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產品號碼 A10486.14

亦稱為 A10486-14

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25 g

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化學識別

CAS68504-35-8

IUPAC Nametetrasodium (3Z,6Z)-4,5-dioxo-3,6-bis[2-(2-sulfonatophenyl)hydrazin-1-ylidene]-3,4,5,6-tetrahydronaphthalene-2,7-disulfonate

Molecular FormulaC22H12N4Na4O14S4

InChI KeyOWVXGCUJHKOBMQ-DTSPTRIMSA-J

SMILES[Na+].[Na+].[Na+].[Na+].[O-]S(=O)(=O)C1=CC=CC=C1NN=C1C(=O)C2=C(C=C1S([O-])(=O)=O)C=C(C(=N/NC1=CC=CC=C1S([O-])(=O)=O)C2=O)S([O-])(=O)=O

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規格

規格表

Formpowder

Loss on Drying< 15%

lambda-max (UV-Vis)2: 562 - 572nm (water)

Specific Absorbance (E 1%/1cm)> 80 @ LMAX1 (water) calculated on dry weight basis

CommentSuitable for SO4 titration: colour change blue to pink

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Sulfonazo III salt is used as spectrophotometric reagent for alkaline earth metals and indicator for sulfate titrations. In general it is used as an indicator.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Sulfonazo III salt is used as spectrophotometric reagent for alkaline earth metals and indicator for sulfate titrations. In general it is used as an indicator.

Solubility
Soluble in water.

Notes
Incompatible with strong oxidizing agents. Store in a cool, dry, well-ventilated area.

RUO – Research Use Only

General References:

Paul J. Kemp; Max B. Williams. Simultaneous spectrophotometric determination of barium and strontium using Sulfonazo III. Anal. Chem.1973, 45, (1) 124-129.
Indicator for determination of sulfates and sulfur: Anal. Chem., 37, 1159 (1965). Spectrophotometric reagent for alkaline earth metals.