SPADNS excellent quality manufacturer, exporter and supplier. SPADNS (4,5-Dihydroxy-3-(p-sulfophenylazo)-2,7-naphthalene disulfonic acid, trisodium salt) is indicator for zirconium, thorium and colorimetric indicator for fluoride.
| C.A.S. No. | 23647-14-5 |
| M.F. | C16H9N2Na3O11S3 |
| M.W. | 570.42gm/mole |
Specifications:
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