L(+)-Ascorbic acid cis- and trans-mixture 98%

Supplier: Thermo Scientific Chemicals

ThermoScintific Chemicals

ThermoScintific Chemicals

Irritant Warning

Flammable Warning

Danger

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

10502-5000 10502-0025 10502-1000

TS10502-5000EA 100 USD

TS10502-5000 TS10502-0025 TS10502-1000

L(+)-Ascorbic acid cis- and trans-mixture 98%

L(+)-Ascorbic acid

Formula: C₆H₈O₆
MW: 176.13 g/mol
Boiling Pt: 55…65 °C (1013 hPa)
Melting Pt: 190…192 °C (dec.)
Density: 0.778 g/cm³
Flash Pt: –18 °C
Storage Temperature: Ambient

MDL Number: MFCD00064328
CAS Number: 50-81-7
EINECS: 213-176-0
UN: 3271
ADR: 3,II
REACH: exempt
Merck Index: 13,00837

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Specification Test Results

Appearance	Clear colorless to light yellow Liquid
Infrared spectrum	Conforms
Refractive index	1.3940 to 1.4000 (20°C, 589 nm)
GC	≥97.5 %
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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