
O-Acetylsalicylic acid 99%
Supplier: Thermo Fisher Scientific
Certificates
About this item
CAS Number:50-78-2
:
Formula:2-(CH₃CO₂)C₆H₄CO₂H
MDL Number:MFCD00002430
:180.16 g/mol
Merck Index:13,00856
Boiling Pt:140 °C (1013 hPa)
Melting Pt:136…140 °C
Density:1.35 g/cm³
Flash Pt:250 °C
EINECS:200-064-1
:GHS07
Storage Temperature:Ambient
Specification Test Results
- Appearance:White Granular powder
- Infrared spectrum:Conforms
- Melting point:133 to 139 °C
- Loss on drying:≤0.5 % (1 g) (vacuum, over P2O5, room temp)
- Heavy metals:≤10 ppm
- Sulfated ash:≤0.1 %
- Appearance of solution:(1 g in 9 ml ethanol 96%) clear, colorless
- Particle size:≥92 % (retained on 125 µm sieve)
- Titration with NaOH:98.5 to 101.5 % (On dried substance)