

L(+)-Ascorbic acid cis- and trans-mixture 98%
Supplier: Thermo Scientific Chemicals
Certificates
About this item
CAS Number:50-81-7
:
Formula:C₆H₈O₆
MDL Number:MFCD00064328
:176.13 g/mol
Merck Index:13,00837
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
EINECS:213-176-0
UN:3271
ADR:3,II
REACH:exempt
:GHS07
:GHS02
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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
Specification Test Results
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