This 25g container of stearic acid has a purity of greater than or equal to 99% by GC. Stearic acid is a saturated fatty acid also known as octadecanoic acid. It appears as a white solid. Material: Stearic Acid. Purity: Greater Than Or Equal To 99% By GC. Form: Solid. Color: White. Molar Mass: 284.5g/mole. Chemical Formula: C18H36O2. Boiling Point: 183 To 184°C (361.4 To 363.2°F). Melting Point: 68 To 70°C (154.4 To 158°F). Solubility: Easily Soluble in Methanol. Quantity: 25g. EMD® #: 569398-25GM.