4.120040
Chromotropic acid disodium salt dihydrate
extra pure, 98.0%, for analysis
C10H6Na2O8S2•2 H2O M.=400.29
CAS No. 5808-22-0
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Guarantee analysis
Assay (T) ≥ 98.0%
Infrared spectroscopy authentic
Insoluble matter in H2O ≤ 0.02%
Suitability (for NO3 and HCHO determination) passes test<\/P>
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