PHYSICAL PROPERTIES

1. Physical Description



2. Color


3. Odor

4. Taste



5. Chemical Formula

6. Molar Mass

7. Boiling Point



8. Melting Point



9. Solubility






10. Density


11. Stability

    - DryPowder
    - Liquid
    - Pellets Large Crystals

    - White or very slightly yellow needles.
    - White or off-white nonhygroscopic crystalline powder.

    - Sweetish Smell.
    - Pleasant aromatic vanilla odor.

Pleasant vanilla taste.



C8H8O3


152.15 g/mol


545° F or 285°C at 760 mm Hg



178 to 181° F or 81-83°C



    Solubility in water
    1 gram of vanillin dissolves in 116 ml of water at 80°C 11 grams of vanillin dissolve in 1 L of water at 25°C
    Solubility in other solvents
    Vanillin is very soluble in hot benzene, and petroleum ether and soluble in diethyl ether, acetone and. Vanillin is freely soluble in chloroform, carbon disulfide, glacial acetic acid, pyridine, oils, and in aqueous solutions of akali hydroxides.

1.06 g/cm³



Slowly oxidizes somewhat on exposure to moist air; affected by light



CHEMICAL PROPERTIES

1. Bromination of Vanillin








2. Iodination of Vanillin










3. Addition of Sodium Borohydride