Acido cromotropico sale di sodio diidrato 98%
Fornitore: Thermo Scientific
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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 | Off-white to beige to grey to light brown Powder |
Infrared spectrum | Conforms |
Titration with NaOH | ≥97.5 % |
Suitability | (for det. of NO3 and HCHO) Passes test |
Insoluble matter | ≤0.02 % (in water) |
Residue after ignition | ≤0.2 % |
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