CAS number: 57-11-4
Molecular formula: C18H36O2
molecular weight: 284.48
Chemical structure:
Product name | Stearic Acid | |
Shelf life | Two years | |
Inspection Standard | USP35 | |
Items | Specifications | Results |
Description | White or almost white, waxy, flaky crystals, white or almost white hard masses, or white or yellowish-white powder | White powder |
Freezing point | 53-59℃ | 55.6℃ |
Identification-B | Acid value: 194-212 | 209.3 |
Solubility | Practically insoluble in water, soluble in ethanol(96 percent) and in light petroleum (50-75℃) | Conform |
Identification-A | Meet the requirements | Conform |
Acidity | Meet the requirements | Conform |
Iodine value (gI2/100g) | ≤4.0 | 0.12 |
Heavy Metals | ≤10 ppm | <10 ppm |
Residue on ignition | ≤0.1% | 0.02% |
Stearic Acid | 40.0%-60.0% | 42.2% |
Stearic Acid & Palmitic acid | ≥90.0% | 99.1% |
Conclusion | Conform |