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Sodium Benzoate

Catalog Number

ACM532321

CAS

532-32-1

Structure

IUPAC Name

Sodium;benzoate

Synonyms

Benzoic acid, sodium salt

Molecular Weight

144.1

Molecular Formula

C7H5NaO2

Canonical SMILES

C1=CC=C(C=C1)C(=O)[O-].[Na+]

InChI

WXMKPNITSTVMEF-UHFFFAOYSA-M

InChI Key

InChI=1S/C7H6O2.Na/c8-7(9)6-4-2-1-3-5-6;/h1-5H,(H,8,9);/q;+1/p-1

Melting Point

>300 °C(lit.)

Flash Point

111.4ºC

Density

1.44g/ml

Appearance

white, odorless, crystalline powder or granules

Application

1. Food Preservative: Sodium benzoate is commonly used as a food preservative to prevent bacterial growth and extends the shelf life of food products.
2. Cosmetics and Personal Care: It is widely used in cosmetics, shampoos, and other personal care products as a preservative to prevent the growth of bacteria, yeasts, and molds.
3. Pharmaceutical Industry: Sodium benzoate is used as a preservative in many pharmaceutical products such as nasal sprays, injectable drugs, and topical creams.
4. Beverages: It is used as a food preservative in carbonated beverages, fruit juices, and other soft drinks to preserve the freshness and taste of products.
5. Industrial Applications: Sodium benzoate is used as a corrosion inhibitor and as a chemical intermediate in the production of dyes and other industrial products.

Active Content

95%

7.0-8.5 (1M, H2O, 25°C)

Physical State

Solid

Typical Applications

Preservative

MSDS

Download MSDS

COA

Download COA

Spec Sheet

Download Spec Sheet

Custom Q&A

What is sodium benzoate?

Sodium benzoate is the salt of benzoic acid that is found naturally in foods like cranberries, apricots, mushrooms, and honey.

What are some sources of sodium benzoate?

Sodium benzoate is found naturally in cranberries, prunes, plums, apples, and other fruits.

What is the role of sodium benzoate in cosmetics?

Sodium benzoate is used as a corrosion inhibitor, fragrance ingredient, and preservative in cosmetics and personal care products.

What is sodium benzoate primarily effective against as a preservative?

Sodium benzoate is primarily effective against fungal growth, but also has some effectiveness against bacteria.

What other preservative is sodium benzoate often combined with in low pH products?

Sodium benzoate is often combined with potassium sorbate in low pH products to benefit from their synergistic effects against yeast and mold.

Is sodium benzoate a broad-spectrum preservative for cosmetic use?

No, sodium benzoate is not a broad-spectrum preservative and should be combined with other preservatives in cosmetic products.

Is sodium benzoate considered safe for consumption?

Yes, the FDA has designated sodium benzoate as a "generally recognized as safe" ingredient. The amount of sodium benzoate in foods is so low that it is deemed safe by regulatory bodies.

Can a reaction occur between sodium benzoate and vitamin C in skin care products?

There is a potential concern for a reaction between sodium benzoate and vitamin C in skin care products. However, formulating products with a high concentration of vitamin C and a low concentration of sodium benzoate can prevent the formation of benzene.

What pH range is generally safer in terms of preventing benzene formation?

Products with a pH of 3 or higher are generally safer in terms of preventing benzene formation.

Is sodium benzoate a reliable and safe ingredient for consumers?

Sodium benzoate is considered one of the most reliable ingredients on the market, and when used within approved concentrations, it is safe for consumers.

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