Aarsha Chemicals Private Limited

Benzoic acid (C6H5COOH) is an aromatic carboxylic acid widely used in various industrial applications. Technical grade benzoic acid refers to a purity level suitable for industrial uses, as opposed to food-grade or pharmaceutical-grade, which have stricter purity requirements.

Here are the typical specifications for Benzoic Acid Technical Grade, compiled from various suppliers:

General Properties:

* CAS No.: 65-85-0

* Molecular Formula: C7H6O2 (or C6H5COOH)

Molecular Weight: 122.12 g/mol

* Appearance: White flakes, powder, or crystalline solid.

* Odor: Faint, slightly aromatic, or pleasant odor.

Chemical and Physical Specifications:

Purity (Assay): Typically 98% to 99.5% minimum.

* Melting Point/Range: 121-123°C (or 121-125°C).

* Solubility: Slightly soluble in water (e.g., 2.9 g/L at 25°C); freely soluble in boiling water, alcohol, chloroform, ether, and fatty oils.

* Moisture/Water Content: Typically ≤ 0.1% to 0.7% (max).

Ash/Residue on Ignition (Sulfated Ash): Typically ≤ 0.05% to 0.1% (max).

* Heavy Metals (as Pb): Typically ≤ 10 ppm (parts per million), with specific limits for individual metals like Arsenic (≤ 1-3 ppm), Lead (≤ 1-5 ppm), Cadmium (≤ 10 ppm), and Mercury (≤ 0.5-1 ppm).

* Chlorine Compounds (as Cl): Typically ≤ 0.02% to 0.03% (or 200-300 ppm).

* pH (of saturated solution): Around 2.5

Applications of Technical Grade Benzoic Acid:

Technical grade benzoic acid is primarily used as an intermediate in the manufacture of:

* Benzoate salts and esters

* Alkyd resins (improves gloss, hardness, and chemical resistance in paints and coatings)

Plasticizers (enhances flexibility and durability of polymers)

Dyes

Corrosion inhibitors

* Rubber activators and retardants

* Preservative in industrial applications (e.g., in emulsion formulations, liquid detergents, paints, polishes, waxes)

As a diverting agent in crude oil recovery