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Product Name |
L(+)-Ascorbic acid |
||
Formula |
C6H8O6 |
Molecular Weight |
176.12 |
CAS NO. |
50-81-7 |
Quantity |
500KG |
Items |
Specification |
Results |
Appearance |
white to slightly yellow Powder |
Conforms |
Assay |
99% | 99.4% |
CONCLUSION |
The result conform with standard |
Melting point 190-194 ° C (Dec.)
Specific rotation 20.5 º (C = 10, H2O)
Boiling point 227.71 ° C (rough estimate)
Density: 1,65g / cm3
Refractive index 21 ° (C = 10, H2O) fema2109 | ascorbicacid
Storage condition: storeat + 5 ° CTO + 30 ° C
Solubility H2O: 50mg / mlat20 ° C, clear, near colorless
Form: Powder
Acidity coefficient (PKA) 4.04,11.7 (AT25 ℃)
Color: white to light yellow
PH value: 3.59 (1mmsolution); 3.04(10mMsolution); 2.53(100mMsolution);
Odor (odor) odorless
Discoloration of acid-base indicator (pH value range: 1-2.5)
Optical activity[ α] 25/D19.0to23.0°,c=10%inH2O
Water solubility 333g / L (20 º C)
Synthesis of organic intermediates.