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Spezifikation

Produktbezug:
Produktnummer 6132043MPBUL
Handelsname / Bezeichnung Trinatriumcitrat Dihydrat, USP, E331
CAS Nummer 6132-04-3
Andere Bezeichnungen / Synonyme•1,2,3-Propanetricarboxylic acid, 2-hydroxy-, sodium salt, hydrate (1:3:2); •Natriumcitrat x 2 H2O krist; •Natriumcitrat x 2 H2O pulver; •Sodium Citrat cystalline; •Sodium Citrat powder; •Trinatriumcitratdihydrat; •trisodium 2-hydroxypropane-1,2,3-tricarboxylate dihydrate; •trisodium citrate dihydrate;
EG Nummer612-118-5
Zolltarifnummer / CN-Code29181500
Molekulargewicht [g/mol]294.09957
FormelC6H9Na3O9


Parameter Methode Spezifikation Einheit

Sensorische Prüfung
Aussehen der Lösung klar und farblos
Aussehen weißes kristallines Pulver oder farblose Kristalle

Physikalische Parameter
Säuregehalt entspricht
Trocknungsverlust ( 180 °C / 18h) 10,0  –  13,0 %
pH-Wert (5% in H2O): 7,5  –  9,0
Löslichkeit leicht löslich in Wasser, praktisch unlöslich in Ethanol (96 %)

Identifikation
Gehalt 99,0  –  100,5 %
Identifizierung entspricht

Verunreinigungen
Schwermetalle (als Pb) ≤ 5 ppm
Oxalate (als wasserfreie Oxalsäure) ≤ 100 ppm
Leicht carbonisierbare Substanzen entspricht
Sulphat (SO4) ≤ 150 ppm
Verwandte Substanzen Tartrate Entspricht
Verwandte Substanzen Pyrogenes Entspricht

Elementare Verunreinigungen
Arsen (As) ≤ 1 ppm
Cadmium (Cd) ≤ 0,1 ppm
Chloride (Cl) ≤ 50 ppm
Eisen (Fe) ≤ 1 ppm
Quecksilber (Hg) ≤ 0,1 ppm
Blei (Pb) ≤ 1 ppm

Organische flüchtige Verunreinigungen
Org. flücht. Veru. in Summe entspricht

Partikelgrößenverteilung
Partikel 40 - 100 mesh %


Chemische Werke Hommel GmbH & Co.KG
Dieses Dokument wurde elektronisch erzeugt und ist ohne Unterschrift gültig.
Waltrop, 02. Dec. 2021
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