3-Hydroxy-2-naphthoic acid 98%
Supplier: Thermo Scientific
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Warning
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Synonyms:
3-Hydroxy-naphthalene-2-carboxylic acid, 2-Hydroxy-3-naphthoic acid
121610010
121610050
121611000
ACRO121610010EA
184
GBP
ACRO121610010
ACRO121610050
ACRO121611000
3-Hydroxy-2-naphthoic acid 98%
3-Hydroxy-2-naphthoic acid
Formula:
C₁₁H₈O₃ MW: 188,18 g/mol Boiling Pt: 368 °C (1013 hPa) Melting Pt: 217…223 °C Flash Pt: >150 °C |
MDL Number:
MFCD00004103 CAS Number: 92-70-6 EINECS: 202-180-8 Merck Index: 13,04860 |
Specification Test Results
Appearance | Yellow to beige to light brown Crystalline powder |
Infrared spectrum | Conforms |
Melting point | 217 to 223 °C (Dec) |
Titration with NaOH | ≥97.5 % |
Residue after evaporation | ≤0.002 % |
Acidity/alkalinity | ≤0.0001 meq/g |
Calcium (Ca) | ≤0.5 ppm |
Copper (Cu) | ≤0.05 ppm |
Iron (Fe) | ≤0.1 ppm |
Lead (Pb) | ≤0.05 ppm |
Magnesium (Mg) | ≤0.2 ppm |
Potassium (K) | ≤0.5 ppm |
Sodium (Na) | ≤0.5 ppm |
Zinc (Zn) | ≤0.1 ppm |
Impurity | ≤1 % n-Propyl benzene |
Benzene | ≤0.05 % |
KMnO4-reducing substance | ≤5 ppm (O) |
Total phosphorus (P) | ≤0.1 ppm |
Total silicon (Si) | ≤0.05 ppm |
Total sulfur (S) | ≤2 ppm |
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