Chemical Product Library / Reference
Stearic acid
Chemical identity, technical indicators, performance and application reference. Confirm specifications and regulatory suitability against supplier documentation.
Chemical identity
| English name | Stearic acid |
|---|---|
| English synonyms | Octadecanoic acid;Stearic acid;C18 fatty acid |
| Chinese name | 硬脂酸 |
| Chinese synonyms | 十八酸;十八烷酸;硬脂酸 |
| Chemical category | Organic Acids |
| CAS No. | 57-11-4 |
| EINECS No. | 200-313-4 |
| Molecular formula | C18H36O2 |
| Molecular weight | 284.48 |
PubChem structure images are reference depictions, not proof of composition, purity, grade, or regulatory status. Mixtures and polymers may not have a single representative structure.
Technical indicators
Acid value 195–210 mg KOH/g; saponification value 196–212 mg KOH/g; iodine value ≤1.0 g I2/100g; titer 54–57°C
Performance characteristics
White to yellowish crystalline flakes or powder, insoluble in water, soluble in alcohol and ether
Application scenarios
Rubber processing aid, plastics lubricant, cosmetics, detergents, candles