1. Product Overview

Potassium Benzoate (CAS No. 582-25-2) is the potassium salt of benzoic acid and an effective antimicrobial preservative widely used in food, beverages, pharmaceuticals, cosmetics, and industrial applications. It inhibits the growth of molds, yeasts, and bacteria, particularly in acidic systems.

Compared to benzoic acid, potassium benzoate offers higher water solubility, making it suitable for liquid formulations requiring rapid dissolution and uniform preservation performance.

Our company ensures a long-term, stable supply of potassium benzoate in multiple grades, with consistent quality control, transparent technical specifications, and full batch traceability. The product complies with applicable regulatory standards across major international markets.

Key Advantages

Multiple grades available: Industrial / Food / Pharmaceutical
High solubility and stable antimicrobial performance
Clearly defined quality specifications and traceable production
Full documentation support: TDS / MSDS / COA
Ready stock for bulk orders and long-term supply programs
Export-oriented supply with global regulatory compliance experience

2. Appearance & Characteristics

Appearance: White crystalline powder or granules
Crystal Form: Fine crystalline or granular solid
Odor: Odorless or faintly aromatic
Taste: Slightly sweet or salty (no sensory impact at approved use levels)

Physical Characteristics

High water solubility for rapid dispersion
Stable chemical structure under normal storage and processing conditions
Non-caking, free-flowing material suitable for automated dosing
Consistent particle distribution for uniform formulation performance

High-quality crystallization ensures product stability, reliable preservative efficacy, and consistent results in industrial, food, pharmaceutical, and laboratory applications.

3. Basic Chemical & Physical Properties

Parameter	Value
CAS Number	582-25-2
Molecular Formula	C₇H₅KO₂
Molecular Weight	160.21 g/mol
Melting Point	~300 °C (decomposes)
Density (20 °C)	~1.44 g/cm³
Water Solubility	Highly soluble
Solubility in Ethanol	Slightly soluble
pKa (Benzoic Acid Equivalent)	~4.2
Log Kow	~1.9 (low bioaccumulation potential)

Potassium benzoate demonstrates optimal antimicrobial activity in acidic systems (pH 2.5–4.5), making it ideal for acidic beverages, fruit-based products, sauces, and liquid formulations.

4. Quality Grades & Technical Specifications

▶ Industrial Grade Potassium Benzoate

Parameter	Specification
Purity (dry basis)	≥ 98.0%
Loss on Drying	≤ 1.0%
Heavy Metals (as Pb)	≤ 0.002%
Chlorides	≤ 0.05%

Typical Applications:
Industrial preservatives, coatings, resins, and chemical synthesis intermediates.

▶ Food Grade Potassium Benzoate (E212 / FCC / GB)

Parameter	Specification
Purity (dry basis)	≥ 99.0%
Loss on Drying	≤ 0.5%
Easily Oxidizable Substances	Pass test
Easily Carbonizable Substances	Pass test
Chlorides	≤ 0.03%
Heavy Metals (as Pb)	≤ 0.001%
Arsenic (As)	≤ 0.0002%

Recommended Uses:
Preservative for soft drinks, fruit juices, flavored syrups, pickles, sauces, condiments, and liquid foods.

▶ Pharmaceutical Grade Potassium Benzoate (USP / BP / EP)

Parameter	Specification
Assay	99.0 – 101.0%
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 0.001%
Chlorides	≤ 0.03%
Residue on Ignition	≤ 0.1%

Typical Applications:
Pharmaceutical excipients, oral liquid formulations, syrups, and antimicrobial stabilizers.

5. Main Applications

Food & Beverage Preservation

Effectively inhibits molds and yeasts in acidic beverages, fruit products, syrups, and sauces, extending shelf life without affecting flavor.

Pharmaceutical Applications

Used as a preservative in oral liquids, cough syrups, and medicinal solutions.

Cosmetics & Personal Care

Applied in creams, lotions, shampoos, and liquid cosmetic formulations as a microbial stabilizer.

Industrial Applications

Used in chemical processing, resins, coatings, and specialty formulations.

One raw material, multiple industries — helping customers streamline sourcing and reduce inventory complexity.

6. Physical Form Options

Form	Features	Recommended Use
Granular	Low dust, free-flowing	Large-scale production, automated dosing
Powder	Fine particle size, fast dissolving	Precision formulations, R&D, laboratory use

7. Packaging & Storage

Standard Packaging:

25 kg per bag
Inner: Polyethylene (PE) liner
Outer: Polypropylene (PP) woven bag

Storage Conditions:

Store in a cool, dry, and well-ventilated area
Protect from moisture, direct sunlight, and heat sources
Keep packaging tightly sealed when not in use

Customized packaging and export packing options are available. Long-term inventory ensures stable supply continuity.

8. Safety & Regulatory Compliance

US. FDA:GRAS (Generally Recognized as Safe)
FAO/WHO (JECFA): Approved food preservative
Acceptable Daily Intake (ADI):0–5 mg/kg body weight
EU Regulation:Approved as food additive E212
IARC Classification:Group 3 (Not classifiable as to carcinogenicity to humans)

When used in accordance with regulatory guidelines and recommended dosage levels, potassium benzoate is considered safe for food, pharmaceutical, and industrial applications.

9. Quality Assurance & Technical Support

Each production batch undergoes strict QC testing prior to release
Key parameters consistently match TDS specifications
Full documentation available: TDS / MSDS / COA
Batch-specific COA available upon request
Technical assistance provided for formulation optimization and application guidance