Chromotropic acid disodium salt dihydrate ≥98.5% (by titrimetric analysis)

Supplier: TCI EUROPE
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Synonyms: 4,5-Dihydroxynaphthalene-2,7-disulphonic acid disodium salt dihydrate,Disodium 4,5-dihydroxynaphthalene-2,7-disulphonate dihydrate,4,5-Dihydroxynaphthalene-2,7-disulphonic acid, disodium salt dihydrate,4,5-Dihydroxy-2,7-naphthalenedisulphonic acid disodium salt dihydrate

D0596-25G D0596-500G
TCIAD0596-25GEA 53.9 EUR
TCIAD0596-25G TCIAD0596-500G
Chromotropic acid disodium salt dihydrate ≥98.5% (by titrimetric analysis)
Chromotropic acid disodium salt dihydrate
Formula: (HO)₂C₁₀H₄(SO₃Na)₂·2H₂O
MW: 400.29 g/mol
Melting Pt: 300 °C
Storage Temperature: Ambient
MDL Number: MFCD00150612
CAS Number: 5808-22-0
EINECS: 204-972-9
Merck Index: 13,02261
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Specification Test Results

Appearance White to Gray to Brown powder to crystaline
Purity (HPLC) min. 97.0 area%
Purity (Neutralization titration) min. 98.5 % (calcd.on anh.substance)
Water 8.0 to 11.0 %
Sulfate max. 0.02%

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