Description
Synonyms: 1,8-Dihydroxy-2-(4-sulfophenylazo)naphthalene-3,6-disulfonic acid trisodium salt, 2-(4-Sulfophenylazo)-1,8-dihydroxy-3,6-naphthalene disulfonic acid trisodium salt, 2-(4-Sulfophenylazo)chromotropic acid trisodium salt, SPADNS
Empirical Formula (Hill Notation): C16H9N2Na3O11S3
General description
Sulfanilic acid azochromotrop is commonly known as SPADNS.
Application
Sulfanilic acid azochromotrop, commonly known as SPADNS, is used mostly as an indicator for complexometric determinations of transition metals like zirconium. It is used as a reagent for drinking and wastewater analysis.
PROPERTIES
Pack Size
25g; 50g
Assay
≥80%
form
powder
solubility
water: 10 mg/mL
λmax
505-510 nm
application(s)
diagnostic assay manufacturing
hematology
histology
storage temp.
room temp
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