L(-)-Malic acid 99%

Supplier: THERMO FISHER SCIENTIFIC CHEMICALS
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L(-)-Malic acid 99%
L(-)-Malic acid
Formula: C₄H₆O₅
MW: 134.09 g/mol
Boiling Pt: 322
Melting Pt: 99…107 °C
Flash Pt: 220 °C
Storage Temperature: Ambient
MDL Number: MFCD00064213
CAS Number: 97-67-6
EINECS: 202-601-5
Merck Index: 13,05730

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Specification Test Results

Appearance White Crystalline powder or granules
Infrared spectrum Conforms
Melting point 99 to 107 °C
Sulfated ash ≤0.2 %
Specific optical rotation -1.5° to -3° (20 °C, 589 nm) (c=8.5, water)
Titration with NaOH ≥98.5 %
Chloride (Cl) ≤100 ppm
Sulfate (SO4) ≤300 ppm
Arsenic (As) ≤2 ppm
Heavy metals (as Pb) ≤20 ppm
Fumaric acid ≤0.2 %


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