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    Sodium Benzoate

    Sodium Benzoate in Tradeasia

    IUPAC Name

    Sodium Benzoate

    Cas Number

    532-32-1

    HS Code

    2916.31.40

    Formula

    NaC7H5O2

    Basic Info

    Appearance

    White Crystalline Powder

    Common Names

    Benzoic Acid Sodium Salt, Sobenate, Antimol

    Packaging

    25 kg PP Bag

    Brief Overview 

    Sodium benzoate is widely used as a food preservative. While it is safe in small doses, having large amounts of sodium benzoate can be fatal. It is also known as the sodium salt of benzoic acid. When water is added to a salt of benzoic acid, we get sodium benzoate. Sodium benzoate occurs naturally, too, especially in fruits like cranberries and blueberries and foods like seafood and dairy products.

    Manufacturing Process

    There are three types of methods by which sodium benzoate can be prepared:
    1. Naphthalene and Vanadium pentoxide is oxidised to give phthalic anhydride, which in turn is decarboxylated to produce benzoic acid.
    2. Toluene and nitric acid react to form benzoic acid.
    3. Benzotrichloride is hydrolysed and then reacted with a mineral acid to give benzoic acid. Once benzoic acid is obtained from either of the above methods, it is dissolved using a sodium hydroxide solution.

    Food Industry

    Sodium benzoate is a preservative. As a food additive, sodium benzoate has the E number E211. It is bacteriostatic and fungistatic under acidic conditions. It is most widely used in acidic foods such as salad dressings (vinegar), carbonated drinks (carbonic acid), jams and fruit juices (citric acid), pickles (vinegar), and condiments. Concentration as a preservative is limited by the FDA in the U.S. to 0.1% by weight. Sodium benzoate is also allowed as an animal food additive at up to 0.1%, according to AFCO's official publication.

    Detergent Industry 

    Sodium benzoate is a preservative with antifungal properties that kill bacteria, fungi and yeasts. It is often used in conventional and even some green cleaning furniture polishes, toilet bowl cleaners, dishwashing detergent gels, carpet cleaning products, upholstery cleaners, and dishwasher cleaners.

    Pharmaceutical Industry

    Sodium benzoate is used as a treatment for urea cycle disorders. Recent research shows that sodium benzoate may be beneficial as an add-on therapy (1 gram/day) in schizophrenia. Total Positive and Negative Syndrome Scale scores dropped by 21% compared to the placebo.

    Other Application

    Sodium benzoate is used as a preservative in medicines and cosmetics.

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