Ácido benzoico

Ácido benzoico es un sólido cristalino blanco con un olor tenue y agradable y una volatilidad moderada; funde a 122 °C y sublima fácilmente a presión atmosférica. Es un ácido carboxílico aromático y un intermediario químico orgánico fundamental. Industrialmente, sirve principalmente como precursor del cloruro de benzilo, plastificantes (por ejemplo, ésteres de glicol) y caprolactama, y se utiliza en la síntesis de colorantes, peróxidos y productos farmacéuticos. Sus aplicaciones abarcan la conservación de alimentos (como benzoato sódico), agroquímicos, recubrimientos y aditivos para polímeros, especialmente en resinas de poliéster y formulaciones alquídicas.

1. Used as a chemical reagent and preservative.2. Benzoic acid is important type food preservative. Under acidic conditions, It has inhibitory effects to mold, yeast and bacteria , but the effect is weak acid producing bacteria. The most appropriate antimicrobial pH values is ranging from 2.5 to 4, generally lower, the pH value is appropriate from 4.5 to 5. In the food industry with plastic barrels concentrated fruit and vegetable juice, the maximum use amount shall not be over 2.0g/kg; in jam (excluding canned), (taste) juice drink, soy sauce, vinegar in the maximum dose of 1.0g/kg; in soft candy, wine, wine in the maximum dose of 0.8 g/kg separately; in the low salt pickled vegetables, the sauce, candied fruit, maximum dose is 0.5 g/kg; in carbonated drinks in the largest amount of use is 0.2g/kg. due to benzoic acid, slightly soluble in water, its use can be a small amount of ethanol enable dissolved. 3.Preservative; anti microbial agents.Due to the low solubility of benzoic acid and use shall be stirring, or dissolved in a small amount of hot water or ethanol. When used in the soft drink with fruit juice concentrate, for benzoic acid easy volatile with the water vapor, so often used in the sodium salt, besides the above sodium equivalent to benzoic acid 0.847g.4.Often used as a fixative agent or preservative. Also used as a fruit juice aroma conservation agents. As a perfume with perfume fragrance. Can also be used for chocolate, lemon, orange, berries, nuts, candied fruit type edible essence. Tobacco flavor is also commonly used.5.Benzoic acid and its sodium salt are food preservatives. Under acidic conditions, it has inhibition of yeasts and molds. When pH 3, antibacterial strength and when pH 6, many fungi effect is very poor, so the antibacterial optimum pH is 2.5-4.0. Benzoic acid is mainly used for the production of sodium benzoate preservatives, dyes intermediates, pesticides, plasticizers, mordant, medicine, spice and also can be used as alkyd resin and polyamide resin modifier for the production of polyester, terephthalic acid and used equipment, iron and steel anti rust agent.6.Mainly used for antifungal and antiseptic.7.Used in medicine, dye carriers, plasticizer, spices and food preservatives such as production, and can also be used to paint of alkyd resin performance improvement; used as pharmaceutical and dye intermediates, used for the preparation of plasticizer and spices etc., as well as equipment, iron and steel anti rust agent.
Fungicida, insecticida: Se utiliza en la fabricación de benzoatos; plastificantes, cloruro de benzoilo, resinas alquídicas, en la fabricación de conservantes alimentarios, como agente fijador de colorantes en la impresión sobre algodón; en el curado del tabaco, aromas, perfumes, dentífricos y como patrón en química analítica. Actualmente no está registrado para su uso en Estados Unidos. El ácido benzoico se utiliza actualmente en aproximadamente una docena de países europeos.

Este producto químico está incluido en Productos Químicos Básicos-Intermedios. Consulte más información sobre qué es Ácido benzoico y la información SDS de Ácido benzoico.

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