Description:
Sodium benzoate is a substance which is a widely used food preservative. It can be produced by reacting sodium hydroxide with benzoic acid.
Sodium Benzoate is a food grade preservative generally regarded as safe (GRAS) worldwide. It is the inactive salt of benzoic acid. It is soluble in water where it converts to benzoic acid, its active form, at a low pH. Benzoic acid is very pH dependent. While it shows some activity up to pH 6 (about 1.55%), it is most active at pH 3 (94%).
As benzoic acid, it is considered to be primarily an anti-fungal, but it shows some activity against bacteria. It is poor against pseudomonads. Benzoic acid is inactivated by non-ionics and by raising the pH.
Sodium Benzoate is not a broad spectrum preservative for cosmetic use and should be combined with other preservatives. If Sodium Benzoate is used as a preservative, the pH of the finished product may need to be lowered enough to release the free acid for useful activity.
Sodium Benzoate is often combined with Potassium Sorbate in low pH products to provide a synergistic preservative effect against yeast and mold.
CAS NO. 532-32-1
Maximum dosage - 0.1%
Properties:
Form: Crystal, Granules, Crystaline Powder
Water Solubility: Soluble
Color: White
Stability: Stable but may be moisture sensitive
Odor: Odorless
USES:
The most common source of sodium benzoate is food; manufacturers use it as a preservative to prevent spoilage. Acidic products like sauerkraut, jellies and jams, hot sauce and soda are the most common sources of sodium benzoate.
It is also used in cosmetics and personal care product formulas as a fragrance ingredient, masking ingredient, anti-corrosive agent.
Sodium benzoate has recently been incorporated into plastics, like polypropylene, where it has been found to improve clarity and strength.
Application:
- Sodium benzoate is used as a medication to treat hyperammonemia, a rare disorder that causes excess ammonia to accumulate in the blood.
- Sodium benzoate is also used in fireworks as a fuel in whistle mix.
- It is used as an intermediate during the manufacture of dyes.
- It is also used in tobacco and pharmaceutical preparations
Dos maksimum - 0.1%
Hartanah:
Bentuk: Crystal, Granules, Crystaline Powder
Kelarutan Air: Larut
Warna: Putih
Kestabilan: Stabil tetapi mungkin sensitif terhadap kelembapan
Bau: Tidak berbau
PENGGUNAAN:
Sumber natrium benzoat yang paling biasa adalah makanan; pengeluar menggunakannya sebagai pengawet untuk mencegah kerosakan. Produk berasid seperti sauerkraut, jeli dan jem, sos panas dan soda adalah sumber natrium benzoat yang paling biasa.
Ia juga digunakan dalam formula kosmetik dan produk penjagaan diri sebagai bahan pewangi, bahan pelindung, agen anti karat.
Malaysia
