L (+)-Ascorbinsyre 99%

Leverandør: Thermo Fisher Scientific
Ratings: Ingen bedømmelse

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Synonymer: Ascorbic Acid, L-Ascorbic acid, (R)-5-((S)-1,2-Dihydroxyethyl)-3,4-dihydroxyfuran-2(5H)-one, Acidum ascorbicum

105021000 105025000 105020025
ACRO105021000EA 332 DKK
ACRO105021000 ACRO105025000 ACRO105020025
L (+)-Ascorbinsyre 99%
L (+)-Ascorbinsyre
Formel: C₆H₈O₆
Molekylvægt: 176.13 g/mol
Kogepunkt: 553
Smeltepunkt: 190…192 °C (dec.)
Opbevaringstemperatur: Stue temperatur
MDL Number: MFCD00064328
CAS-nummer: 50-81-7
EINECS: 200-066-2
REACH: exempt
Merck Index: 13,00837
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Specifikationer Testresultater

Appearance White to off-white Crystalline powder or crystals
Infrared spectrum Conforms
Titration Iodimetric ≥98.5 %
Sulfated ash ≤0.1 %
Solubility (5 % in water) Passes test
pH 2.1 to 2.6 (5 % in water)
Specific optical rotation +20.5° to +21.5° (20°C, 589 nm) (c=10, H2O)
Copper (Cu) ≤5 ppm
Iron (Fe) ≤2 ppm
Heavy metals (as Pb) ≤10 ppm
Impurity ≤0.2 % Oxalic acid


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