Sodium benzoate is the sodium salt of benzoic acid . It is an aromatic compound denoted by the chemical formula C7H5NaO2 with a molecular weight of 144.11. In its refined form, sodium benzoate is a white, odorless compound that has a sweet, astringent taste, and is soluble in water .
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What kind of compound is sodium benzoate?

Sodium benzoate is the sodium salt of benzoic acid . It is an aromatic compound denoted by the chemical formula C7H5NaO2 with a molecular weight of 144.11. In its refined form, sodium benzoate is a white, odorless compound that has a sweet, astringent taste, and is soluble in water .

What is sodium benzoate made of?

What Is Sodium Benzoate? Sodium benzoate is best known as a preservative used in processed foods and beverages to extend shelf life, though it has several other uses. It’s an odorless, crystalline powder made by combining benzoic acid and sodium hydroxide.

What is the chemical name of sodium benzoate?

Preferred IUPAC name Sodium benzoate
Other names E211, benzoate of soda
CAS Number532-32-1
What are chemical properties of sodium benzoate?

Compound FormulaC7H5NaO2
AppearanceWhite powder
Melting Point410 °C
Boiling PointN/A
Density1.44 g/cm3
Is sodium benzoate hygroscopic?

Sodium benzoate (CAS No. 532-32-1; C7H5O2Na; benzoic acid, sodium salt [E 211 (EU No. Regulation on Labelling of Foodstuffs)]; molecular weight 144.11) has a melting point above 300 °C. It is very soluble in water (550–630 g/litre at 20 °C) and is hygroscopic at a relative humidity above 50%.

Is sodium benzoate ionic or molecular?

Sodium Benzoate is a mostly covalent due to the carbon in the benzoate but also it has slightly a ionic bond because of the metal sodium.

How is benzoate made?

Sodium benzoate is produced by combining benzoic acid with baking soda, soda ash, or lye. This reaction makes it soluble in water (benzoic acid on its own isn’t soluble in water).

What is sodium benzoate in?

Where is Sodium benzoate found? Sodium benzoate is a preservative that can be found in acidic foods such as salad dressings, carbonated drinks, jams, juices, and condiments. It is also found in mouthwashes, silver polishes, cough syrups, soaps, and shampoos.

Is sodium benzoate made from corn?

Animal rennet can contain all kinds of preservatives that are commonly derived from corn. This ingredients list for a liquid animal rennet contains: propylene glycol, caramel color, flavor, sodium benzoate, potassium sorbate, all of which are likely from corn.

What is sodium benzoate in skin care?

Sodium benzoate is used in a wide variety of cosmetics and personal care products where it acts as a corrosion inhibitor, fragrance ingredient, and preservative. As a preservative, sodium benzoate is primarily an anti-fungal agent but also has some effectiveness against bacteria.

What is sodium benzoate EWG?

Sodium benzoate is a preservative commonly used in foods, pharmaceuticals and cosmetics.

What functional group is sodium benzoate?

Product No.D-0288
CAS Number (of the unlabelled compound)532-32-1
CategoryFlavours & Fragrances
Functional GroupsCarboxylic Acids & Salts
What is the pH of sodium benzoate?

pH% Active Benzoic Acid
Is sodium benzoate polar or nonpolar?

Sodium benzoate is not a molecule. It is a compound made up of two ions, Na+ and C6H5COO-. Benzoic acid consists of molecules. The benzoic acid molecule is polar because the oxygen atoms, which are more electronegative than carbon and hydrogen, are concentrated on one side of the molecules.

Is sodium benzoate a base?

Sodium benzoate is a salt of the conjugate base, the OBz- or benzoate ion. Whenever sodium benzoate dissolves in water, it dissociates into its ions. The benzoate ion then acts as a base toward water, picking up a proton to form the conjugate acid and a hydroxide ion.

Why is sodium benzoate soluble in water?

It is because the ionic bond between the sodium and the benzoic acid breaks in water, leading to dissociation. Sodium benzoate is soluble in waterbecause it dissolves in water very well, to the extent of 60 or so g per 100 g of water depending on the temperature.

Is Sodium Benzoate an organic compound?

Sodium benzoate is an organic sodium salt resulting from the replacement of the proton from the carboxy group of benzoic acid by a sodium ion. … The sodium salt of BENZOIC ACID. It is used as an antifungal preservative in pharmaceutical preparations and foods.

What is the solubility of sodium benzoate in water?

Sodium benzoate is highly soluble in water (66 g/100 mL at 20 °C).

What does sodium benzoate do in hand soap?

As a preservative, sodium benzoate extends the shelf life of liquid soap and prevents fungi like yeast and mold from colonizing. Sodium benzoate is often an alternative to parabens in cleaning products such as dishwashing detergent, toilet bowl cleaners, and upholstery cleaners.

Is sodium benzoate in milk?

The major preservatives in dairy products are sodium benzoate, potassium sorbate, and natamycin. The maximum permitted levels for these additives in cheese and yogurt are established according to Iranian national standards.

Is benzoate the same as benzene?

No, however, in foods there can be an issue when Sodium Benzoate combines with Ascorbic Acid creating a form of benzene, a known carcinogen. In foods, fats and sugars hinder the formation of benzene and thus is considered safe and usable in foods by FDA. …

Is sodium benzoate banned?

Are Countries Banning The Ingredient? Sodium Benzoate is not being banned in any country. However, the dose per product is being monitored in the US and Europe.

How do you mix sodium benzoate?

It is safe for humans and its limit in fruit juices is 0.13%, varying country by country. Then to one liter of fruit juice can be added 1,3g of sodium benzoate. Sodium benzoate is usually permitted at a concentration of upto 1.3g/litre of fruit juice.

Why is sodium benzoate in food?

In the food industry, sodium benzoate is used to prevent spoilage from harmful bacteria, yeasts, and molds. It also helps maintain freshness in food by helping to slow or prevent changes in color, flavor, PH, and texture.

Is Potassium a benzoate?

NamesAutoignition temperature950 °C (1,740 °F; 1,220 K)

What does sodium benzoate do to your hair?

Amount of sodium benzoate in products is so low that it is unlikely to cause any side effects in most people. Sodium benzoate as a standalone ingredient is not considered to be harmful. … Experts believe that low dosage of sodium benzoate either taken internally or applied on skin, hair or scalp has negligible impact.

Who invented sodium benzoate?

23, 1975 PRECIPITATION OF SODIUM BENZOATE [75] Inventor: Carole Anne Tedball, Sarnia, Canada [73] Assignee: The Dow Chemical Company, Midland, Mich.

Is benzoate ion soluble in water?

For example, benzoic acid is insoluble in water but the benzoate ion is soluble in water. … Adding NaOH will neutralize the benzoic acid producing the benzoate ion, which now goes into the aqueous layer, leaving other other two organic compounds in the ether.

Is sodium benzoate safe for baby skin?

While generally not problematic on its own, sodium benzoate can form benzene, a known carcinogen, when it reacts with ascorbic acid (vitamin C) under specific conditions.

Is sodium gluconate safe for skin?

Sodium gluconate is a safe and natural alternative to the synthetic chelating agents EDTA and etidronate to protect cosmetic products from discoloration and rancidity of cosmetic oils. It can also act as pH regulator as well as humectant, thanks to its molecular structure with numerous hydroxyl groups.

Is sodium benzoate an artificial preservative?

Artificial preservatives such as sodium nitrate, sodium benzoate and propionate have long been the norm in food preparation because they are cheap and effective in small amounts.

What is the charge of benzoate ion?

Benzoate is the simplest member of the class of benzoates that is the conjugate base of benzoic acid, comprising a benzoic acid core with a proton missing to give a charge of -1.

Is sodium benzoate soluble in diethyl ether?

No but sodium benzoate will dissolve in water and benzoic acid won’t. Conversely benzoic acid will dissolve in diethyl ether but not in water. Therefore you can use a water/diethyl ether partition to separate these components in a separatory funnel. This is a common undergraduate organic chemistry lab.

How do you test for sodium benzoate?

Test Solution: Add 0.1 ml of dilute hydrochloric acid to 8 ml of solution A and dilute with sufficient water to produce 25 ml. Adjust with dilute acetic acid or dilute ammonia solution to a pH between 3.0 and 4.0, dilute with water to about 35 ml and mix.