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Barium diphenylamine-4-sulfonate

Name: Barium diphenylamine-4-sulfonate
Brand: SIGMA

redox indicator

Synonym(s):

4-(Phenylamino)benzenesulfonic acid barium salt, Diphenylamine-4-sulfonic acid barium salt

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About This Item

Linear Formula:

(C₁₂H₁₀NO₃S)₂Ba

CAS Number:

6211-24-1

Molecular Weight:

633.88

NACRES:

NA.21

PubChem Substance ID:

24893816

UNSPSC Code:

12161500

EC Number:

228-278-0

MDL number:

MFCD00007497

Beilstein/REAXYS Number:

3795146

eCl@ss:

38110501

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Properties

Product Name

Barium diphenylamine-4-sulfonate, for redox titration

Quality Segment

100

assay

≥95%

form

powder

technique(s)

titration: suitable

solubility

50 mg/mL, clear to very slightly hazy, faintly yellow-green

cation traces

C: 44.3-46.6%, N: 4.1-4.8%

SMILES string

[Ba++].[O-]S(=O)(=O)c1ccc(Nc2ccccc2)cc1.[O-]S(=O)(=O)c3ccc(Nc4ccccc4)cc3

InChI

1S/2C12H11NO3S.Ba/c2*14-17(15,16)12-8-6-11(7-9-12)13-10-4-2-1-3-5-10;/h2*1-9,13H,(H,14,15,16);/q;;+2/p-2

InChI key

IVCNVXFNTKXMCA-UHFFFAOYSA-L

Description

General description

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This Item	217565
Supelco D4130 Barium diphenylamine-4-sulfonate	Sigma-Aldrich 217565 Barium chloride dihydrate
description for redox titration	description ACS reagent, ≥99%
technique(s) titration: suitable	technique(s) -
form powder	form powder, crystals or chunks
cation traces N: 4.1-4.8%, C: 44.3-46.6%	cation traces Ca: ≤0.05%, Na: ≤0.005%, K: ≤0.0025%, Sr: ≤0.1%, Fe: ≤2 ppm, heavy metals: ≤5 ppm (by ICP-OES)
assay ≥95%	assay ≥99%
Quality Level 100	Quality Level 200
solubility 50 mg/mL, clear to very slightly hazy, faintly yellow-green	solubility -