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potassium benzoate
benzoic acid, potassium salt (1:1)

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Name:potassium benzoate
CAS Number: 582-25-2Picture of molecule3D/inchi
ECHA EINECS - REACH Pre-Reg:209-481-3
Nikkaji Web:J43.329B
Molecular Weight:160.21355000
Formula:C7 H5 K O2
NMR Predictor:Predict (works with chrome or firefox)
Category:antimicrobial preservatives
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Google Scholar:Search
Google Books:Search
Google Scholar: with word "volatile"Search
Google Scholar: with word "flavor"Search
Google Scholar: with word "odor"Search
Perfumer and Flavorist:Search
Google Patents:Search
US Patents:Search
EU Patents:Search
Pubchem Patents:Search
 FDA/DG SANTE Petitions, Reviews, Notices:
EU SANCO Potassium benzoate View - review
JECFA Food Additive: Potassium Benzoate
GSFA Codex: Potassium benzoate (212)
DG SANTE Food Additives:potassium benzoate
FDA Regulation:
Subpart B--Requirements for Specific Standardized Margarine
Sec. 166.110 Margarine.

Subpart B--Substances for Use as Basic Components of Single and Repeated Use Food Contact
Sec. 177.1210 Closures with sealing gaskets for food containers.
Physical Properties:
Appearance:white crystalline powder (est)
Assay: 99.00 to 100.00
Food Chemicals Codex Listed: No
Soluble in:
 water, 1e+006 mg/L @ 25 °C (est)
Organoleptic Properties:
Odor and/or flavor descriptions from others (if found).
Cosmetic Information:
CosIng:cosmetic data
Cosmetic Uses: preservatives
Potassium Benzoate
American Elements
Potassium Benzoate 99%
Odor: characteristic
Use: Potassium Benzoate is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards.
American International Chemical, LLC.
BOC Sciences
For experimental / research use only.
Potassium benzoate Purity >98%
Emerald Kalama Chemical
Kalama® Potassium Benzoate FCC
Farbest-Tallman Foods
Potassium Benzoate Solution
Foodchem International
Potassium Benzoate
Glentham Life Sciences
Potassium benzoate
Jarchem Industries
Jarace™ PB-33
Odor: characteristic
Use: A low sodium preservative alternative benzoate.
Jarchem Industries
Jarace™ SB-33
Odor: characteristic
Use: Preservative used in a wide variety of products such as coatings, surfactant blends, beverages. Easy to use liquid form.
Kraft Chemical
Potassium Benzoate
Northwestern Extract
Potassium Benzoate FCC
Penta International
Potassium Benzoate
For experimental / research use only.
Potassium Benzoate ReagentPlus®, 99%
Sinofi Food Ingredients
Potassium Benzoate
Odor: characteristic
Use: Preservative, Cosmetics, Feed, Pharmaceutical, Antimicrobial, Antifungal, Antibacterial, Margarine, Soft Drink, Alcohol Beverage, Beverage Powder, Ice Cream, Candy, Chewing Gum, Icings, Fruit Juice, Puddings, Sauces, Baking Food, Sauage, Food Colors, Milk, Wine, Flavoring Agent, Dyestuff, Toothpaste, Coating, Rubber.
Zhong Ya Chemical
Potassium Benzoate
Safety Information:
Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
Safety in Use Information:
antimicrobial preservatives
Recommendation for potassium benzoate usage levels up to:
 not for fragrance use.
Recommendation for potassium benzoate flavor usage levels up to:
 not for flavor use.
Safety References:
European Food Safety Authority (EFSA) reference(s):

Scientific Opinion on the re-evaluation of benzoic acid (E 210), sodium benzoate (E 211), potassium benzoate (E 212) and calcium benzoate (E 213) as food additives
View page or View pdf

EPI System: View
Daily Med:search
AIDS Citations:Search
Cancer Citations:Search
Toxicology Citations:Search
EPA Substance Registry Services (TSCA):582-25-2
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :23661960
National Institute of Allergy and Infectious Diseases:Data
WGK Germany:1
potassium benzoate
 potassium benzoate
NIST Chemistry WebBook:Search Inchi
Canada Domestic Sub. List:582-25-2
Pubchem (cid):23661960
Pubchem (sid):134978022
Other Information:
(IUPAC):Atomic Weights of the Elements 2011 (pdf)
Videos:The Periodic Table of Videos
tgsc:Atomic Weights use for this web site
(IUPAC):Periodic Table of the Elements
FDA Substances Added to Food (formerly EAFUS):View
FDA Indirect Additives used in Food Contact Substances:View
KEGG (GenomeNet):D05576
HMDB (The Human Metabolome Database):Search
Export Tariff Code:2916.31.1090
FDA Listing of Food Additive Status:View
Potential Blenders and core components note
None Found
Potential Uses:
Occurrence (nature, food, other):note
 not found in nature
 benzoic acid potassium salt
 benzoic acid potassium salt (1:1)
 benzoic acid, potassium salt
 benzoic acid, potassium salt (1:1)
 jarace PB-33
 jarace SB-33
 potassium benzoate FCC
 potassium benzoate NF FCC dense
 potassium benzoate solution


PubMed:Teratogenic effects of long term consumption of potassium benzoate on eye development in BALB/c fetal mice.
PubMed:Teratogenic effects of long term consumption of potassium benzoate on eye development in BALB/c fetal mice.
PubMed:Irradiation and additive combinations on the pathogen reduction and quality of poultry meat.
PubMed:The evaluation of the genotoxicity of two food preservatives: sodium benzoate and potassium benzoate.
PubMed:Fate of Listeria monocytogenes in ready-to-eat turkey breast rolls formulated with antimicrobials following electron-beam irradiation.
PubMed:Post-processing application of chemical solutions for control of Listeria monocytogenes, cultured under different conditions, on commercial smoked sausage formulated with and without potassium lactate-sodium diacetate.
PubMed:Post process control of Listeria monocytogenes on commercial frankfurters formulated with and without antimicrobials and stored at 10 degrees C.
PubMed:Application of predictive models to estimate Listeria monocytogenes growth on frankfurters treated with organic acid salts.
PubMed:Triaquabenzoatocalcium(II) monobenzoate: coordination polymer chains linked into a two-dimensional framework by hydrogen bonds.
PubMed:Postprocessing antimicrobial treatments to control Listeria monocytogenes in commercial vacuum-packaged bologna and ham stored at 10 degrees C.
PubMed:Impact of antimicrobial ingredients and irradiation on the survival of Listeria monocytogenes and the quality of ready-to-eat turkey ham.
PubMed:Inhibitory effects of organic acid salts for control of Listeria monocytogenes on frankfurters.
PubMed:Preliminary investigation of the simultaneous detection of sugars, ascorbic acid, citric acid, and sodium benzoate in non-alcoholic beverages by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry.
PubMed:New conductivity detection response equation for anions eluted with fully and partially ionised eluents in non-suppressed ion chromatography.
PubMed:Organic acids and their salts as dipping solutions to control listeria monocytogenes inoculated following processing of sliced pork bologna stored at 4 degrees C in vacuum packages.
PubMed:Nucleophilic Substitution Reactions of (Alkoxymethylene)dimethylammonium Chloride.
PubMed:Survey of benzene in foods by using headspace concentration techniques and capillary gas chromatography.
PubMed:Adsorption of benzoic acid on pure and cupric ion-modified hydroxyapatite: implications for design of a coupling agent to dental polymer composites.
PubMed:Response characteristics of rat taste cells to potassium benzoate.
PubMed:Receptor potential of rat taste cell to potassium benzoate.
PubMed:Peripheral interactions among single papilla inputs to gustatory nerve fibers.
Preservative for margarines and wines Potassium benzoate (E212), the potassium salt of benzoic acid, is a food preservative that inhibits the growth of mold, yeast and some bacteria. It works best in low-pH products, below 4.5, where it exists as benzoic acid.
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