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68504-35-8 - Sulfonazo III salt - Tetrasodium 4,5-dihydroxy-3,6-bis[(2-sulfonatophenyl)azo]naphthalene-2,7-disulfonate - A10486 - Alfa Aesar

A10486 Sulfonazo III salt

CAS Number
68504-35-8
Synonyms
Tetrasodium 4,5-dihydroxy-3,6-bis[(2-sulfonatophenyl)azo]naphthalene-2,7-disulfonate

Size Price ($) Quantity Availability
5g 51.91
25g 189.52
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Sulfonazo III salt

MDL
MFCD00003942
EINECS
270-924-9

Chemical Properties

Formula
C22H12N4Na4O14S4
Formula Weight
776.57
Melting point
^=300°
Solubility
Soluble in water.

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.

Notes

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

Literature 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.

Other References

Beilstein
1900148
Harmonized Tariff Code
2927.00
TSCA
No

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