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di-Natriumtartrat Dihydrat krist. >99%, reinst E 335 - 500 g
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RIEDEL# 25517 *
Synonyme: Natriumtartrat dibasisch, neutrales weinsaures Natrium, Weinsäure Dinatriumsalz Dihydrat; engl.: L-(+)-Tartaric acid disodium salt, Disodium tartrate dihydrate, Sodium tartrate dihydrate; lat. Natrium tartaricum dihydricum puriss. cryst. *
quality: meets analytical specification of E 335 *
Chem. Formel/Molecular Formula: C4H4Na2O6 · 2H2O * Molmasse/Molecular Weight: 230.08 g/mol * CAS Number [6106-24-7] * Beilstein Registry Number: 6121732 * EG/EC-Number: 212-773-2 (EINECS) * MDL number MFCD00150035 *
SPEZIFIKATION....
total impurities...
residual solvents: in accordance
≤0.001% ammonium (NH4)
loss ≤17% loss on drying, 150 °C, 4 h
pH 7.0-7.5 (20 °C, 1%)
anion traces...
chloride (Cl): ≤50 mg/kg
oxalate (as oxalic acid): ≤100 mg/kg
sulfate (SO4): ≤50 mg/kg
cation traces...
As: ≤2 mg/kg
Ca: ≤100 mg/k
Cu: ≤10 mg/kg
Fe: ≤10 mg/kg
Hg: ≤1 mg/kg
K: ≤200 mg/kg
Pb: ≤5 mg/kg
Zn: ≤10 mg/kg
Literaturhinweise: Beil. 3,III,994; Sax 6, 2453;
References: FT-IR 2 (1), 885:B / FT-IR 1 (2), 1286:B / NMR-Reference 2 (1), 457:A / RegBook 1 (1), 629:K / Sigma FT-IR 1 (2), 899:B / Structure Index 1, 92:C:2 #6106247
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