Acido cromotropico sale di sodio diidrato ≥98.5% (by titrimetric analysis)
Fornitore: TCI EUROPE
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Attenzione
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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
Formula:
(HO)₂C₁₀H₄(SO₃Na)₂·2H₂O Peso molecolare: 400,29 g/mol Punto di fusione: 300 °C Temperatura di stoccaggio: Ambiente |
MDL Number:
MFCD00150612 CAS Number: 5808-22-0 EINECS: 204-972-9 Merck Index: 13,02261 |
Risultati del test di specificazione
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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