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Benzoic acid information


Benzoic acid
Skeletal formula
Skeletal formula
Ball-and-stick model
Ball-and-stick model
Names
Preferred IUPAC name
Benzoic acid[1]
Systematic IUPAC name
Benzenecarboxylic acid
Other names
  • Carboxybenzene
  • E210
  • Dracylic acid
  • Phenylmethanoic acid
  • Phenylcarboxylic acid
  • Benzoyl alcohol
  • Benzoylic acid
  • Carboxylbenzene
  • Hydrogenphenic acid
  • Phenoic acid
Identifiers
CAS Number
  • 65-85-0 checkY
3D model (JSmol)
  • Interactive image
3DMet
  • B00053
Beilstein Reference
636131
ChEBI
  • CHEBI:30746 checkY
ChEMBL
  • ChEMBL541 checkY
ChemSpider
  • 238 checkY
DrugBank
  • DB03793 checkY
ECHA InfoCard 100.000.562 Edit this at Wikidata
EC Number
  • 200-618-2
E number E210 (preservatives)
Gmelin Reference
2946
KEGG
  • D00038 checkY
MeSH benzoic+acid
PubChem CID
  • 243
RTECS number
  • DG0875000
UNII
  • 8SKN0B0MIM checkY
CompTox Dashboard (EPA)
  • DTXSID6020143 Edit this at Wikidata
InChI
  • InChI=1S/C7H6O2/c8-7(9)6-4-2-1-3-5-6/h1-5H,(H,8,9) checkY
    Key: WPYMKLBDIGXBTP-UHFFFAOYSA-N checkY
  • InChI=1/C7H6O2/c8-7(9)6-4-2-1-3-5-6/h1-5H,(H,8,9)
    Key: WPYMKLBDIGXBTP-UHFFFAOYAD
SMILES
  • O=C(O)c1ccccc1
Properties
Chemical formula
C7H6O2
Molar mass 122.123 g/mol
Appearance Colorless crystalline solid
Odor Faint, pleasant odor
Density 1.2659 g/cm3 (15 °C)
1.0749 g/cm3 (130 °C)[2]
Melting point 122 °C (252 °F; 395 K)[7]
Boiling point 250 °C (482 °F; 523 K)[7]
Solubility in water
1.7 g/L (0 °C)
2.7 g/L (18 °C)
3.44 g/L (25 °C)
5.51 g/L (40 °C)
21.45 g/L (75 °C)
56.31 g/L (100 °C)[2][3]
Solubility Soluble in acetone, benzene, CCl4, CHCl3, alcohol, ethyl ether, hexane, phenyls, liquid ammonia, acetates
Solubility in methanol 30 g/100 g (−18 °C)
32.1 g/100 g (−13 °C)
71.5 g/100 g (23 °C)[2]
Solubility in ethanol 25.4 g/100 g (−18 °C)
47.1 g/100 g (15 °C)
52.4 g/100 g (19.2 °C)
55.9 g/100 g (23 °C)[2]
Solubility in acetone 54.2 g/100 g (20 °C)[2]
Solubility in olive oil 4.22 g/100 g (25 °C)[2]
Solubility in 1,4-dioxane 55.3 g/100 g (25 °C)[2]
log P 1.87
Vapor pressure 0.16 Pa (25 °C)
0.19 kPa (100 °C)
22.6 kPa (200 °C)[4]
Acidity (pKa)
  • 4.202 (H2O)[5]
  • 11.02 (DMSO)[6]
Magnetic susceptibility (χ)
−70.28·10−6 cm3/mol
Refractive index (nD)
1.5397 (20 °C)
1.504 (132 °C)[2]
Viscosity 1.26 mPa (130 °C)
Structure
Crystal structure
Monoclinic
Molecular shape
Planar
Dipole moment
1.72 D in dioxane
Thermochemistry
Heat capacity (C)
146.7 J/mol·K[4]
Std molar
entropy (S298)
167.6 J/mol·K[2]
Std enthalpy of
formation fH298)
−385.2 kJ/mol[2]
Std enthalpy of
combustion cH298)
−3228 kJ/mol[4]
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
Irritant
GHS labelling:
Pictograms
GHS05: CorrosiveGHS08: Health hazard[8]
Signal word
Danger
Hazard statements
H318, H335[8]
Precautionary statements
P261, P280, P305+P351+P338[8]
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
1
0
Flash point 121.5 °C (250.7 °F; 394.6 K)[7]
Autoignition
temperature
571 °C (1,060 °F; 844 K)[7]
Lethal dose or concentration (LD, LC):
LD50 (median dose)
1700 mg/kg (rat, oral)
Safety data sheet (SDS) JT Baker
Related compounds
Other cations
Sodium benzoate,
Potassium benzoate
Related carboxylic acids
Hydroxybenzoic acids
Aminobenzoic acids,
Nitrobenzoic acids,
Phenylacetic acid
Related compounds
Benzaldehyde,
Benzyl alcohol,
Benzoyl chloride,
Benzylamine,
Benzamide,
Benzonitrile
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)
Infobox references

Benzoic acid /bɛnˈz.ɪk/ is a white (or colorless) solid organic compound with the formula C6H5COOH, whose structure consists of a benzene ring (C6H6) with a carboxyl (−C(=O)OH) substituent. The benzoyl group is often abbreviated "Bz" (not to be confused with "Bn" which is used for benzyl), thus benzoic acid is also denoted as BzOH, since the benzoyl group has the formula –C6H5CO. It is the simplest aromatic carboxylic acid. The name is derived from gum benzoin, which was for a long time its only source.

Benzoic acid occurs naturally in many plants[9] and serves as an intermediate in the biosynthesis of many secondary metabolites. Salts of benzoic acid are used as food preservatives. Benzoic acid is an important precursor for the industrial synthesis of many other organic substances. The salts and esters of benzoic acid are known as benzoates /ˈbɛnz.t/.

  1. ^ Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. p. 745. doi:10.1039/9781849733069-00648. ISBN 978-0-85404-182-4.
  2. ^ a b c d e f g h i j "benzoic acid". chemister.ru. Retrieved 24 October 2018.
  3. ^ Seidell, Atherton; Linke, William F. (1952). Solubilities of Inorganic and Organic Compounds. Van Nostrand.
  4. ^ a b c Benzoic acid in Linstrom, Peter J.; Mallard, William G. (eds.); NIST Chemistry WebBook, NIST Standard Reference Database Number 69, National Institute of Standards and Technology, Gaithersburg (MD) (retrieved 2014-05-23)
  5. ^ Harris, Daniel (2010). Quantitative Chemical Analysis (8 ed.). New York: W. H. Freeman and Company. pp. AP12. ISBN 9781429254366.
  6. ^ Olmstead, William N.; Bordwell, Frederick G. (1980). "Ion-pair association constants in dimethyl sulfoxide". The Journal of Organic Chemistry. 45 (16): 3299–3305. doi:10.1021/jo01304a033.
  7. ^ a b c d Record in the GESTIS Substance Database of the Institute for Occupational Safety and Health
  8. ^ a b c Sigma-Aldrich Co., Benzoic acid. Retrieved on 2014-05-23.
  9. ^ "Scientists uncover last steps for benzoic acid creation in plants". Purdue Agriculture News.

and 25 Related for: Benzoic acid information

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Benzoic acid

Last Update:

Benzoic acid /bɛnˈzoʊ.ɪk/ is a white (or colorless) solid organic compound with the formula C6H5COOH, whose structure consists of a benzene ring (C6H6)...

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Glycolic acid

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produced it by treating hippuric acid with nitric acid and nitrogen dioxide to form an ester of benzoic acid and glycolic acid (C6H5C(=O)OCH2COOH), which they...

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Potassium benzoate

Last Update:

exists as benzoic acid. Acidic foods and beverages such as fruit juice (citric acid), sparkling drinks (carbonic acid), soft drinks (phosphoric acid), and...

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Sodium benzoate

Last Update:

Sodium benzoate also known as benzoate of soda is the sodium salt of benzoic acid, widely used as a food preservative (with an E number of E211) and a...

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Benzoic anhydride

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Benzoic anhydride is the organic compound with the formula (C6H5CO)2O. It is the acid anhydride of benzoic acid and the simplest symmetrical aromatic...

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Terephthalic acid

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Approximately 5% of the acetic acid solvent is lost by decomposition or "burning". Product loss by decarboxylation to benzoic acid is common. The high temperature...

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Ortho effect

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substituted benzoic acid compound, the compound becomes more acidic surpassing the unmodified benzoic acid. Generally ortho-substituted benzoic acids are stronger...

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Gallic acid

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supported by evidence. Benzoic acid Catechol Hydrolyzable tannin Pyrogallol Syringol Syringaldehyde Syringic acid Shikimic acid Haslam, E.; Cai, Y. (1994)...

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Hippuric acid

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acid (Gr. hippos, horse, ouron, urine) is a carboxylic acid and organic compound. It is found in urine and is formed from the combination of benzoic acid...

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Benzaldehyde

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oxidized to benzoic acid in air at room temperature, causing a common impurity in laboratory samples. Since the boiling point of benzoic acid is much higher...

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Carboxylic acid

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the carboxylic acid, regardless of its chain length. Benzoic acid from toluene, terephthalic acid from para-xylene, and phthalic acid from ortho-xylene...

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Benzyl benzoate

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hydrolyzed to benzoic acid and benzyl alcohol. Benzyl alcohol is subsequently metabolized to benzoic acid. The conjugates of benzoic acid (hippuric acid and the...

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Organic acid anhydride

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dehydration reaction between benzoic acid and propanoic acid would yield "benzoic propanoic anhydride"). One or both acyl groups of an acid anhydride may also be...

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Hammett equation

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reaction rates and equilibrium constants for many reactions involving benzoic acid derivatives with meta- and para-substituents to each other with just...

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Benzamide

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the chemical formula of C7H7NO. It is the simplest amide derivative of benzoic acid. In powdered form, it appears as a white solid, while in crystalline...

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Gentisic acid

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Gentisic acid is a dihydroxybenzoic acid. It is a derivative of benzoic acid and a minor (1%) product of the metabolic break down of aspirin, excreted...

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Calorimeter

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The combustion of sample (benzoic acid) inside the bomb Δ H c = Δ H c ( benzoic   acid ) m benzoic   acid + Δ H c ( Ni   fuse   wire ) Δ m Ni...

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Benzene

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acidic material was derived from benzoin by sublimation, and named "flowers of benzoin", or benzoic acid. The hydrocarbon derived from benzoic acid thus...

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Mouthwash

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pain, commonly used before meals to reduce discomfort while eating. Benzoic acid acts as a buffer. Betamethasone is sometimes used as an anti-inflammatory...

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Benzoyl chloride

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of benzyl alcohol. It reacts with water to produce hydrochloric acid and benzoic acid: C6H5COCl + H2O → C6H5COOH + HCl Benzoyl chloride is a typical acyl...

Word Count : 445

Coumarin

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tonka beans in 1820 by A. Vogel of Munich, who initially mistook it for benzoic acid. Also in 1820, Nicholas Jean Baptiste Gaston Guibourt (1790–1867) of...

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Phenolic acid

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mostly phenolic acids, namely 3,4-dihydroxy benzoic, p-hydroxy benzoic, vanillic, caffeic, p-coumaric, ferulic, syringic, and sinapinic acids.[citation needed]...

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Paregoric

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1965 edition, "Paregoric is a 4% opium tincture in which there is also benzoic acid, camphor, and anise oil. ... Paregoric by tradition is used especially...

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Ethyl benzoate

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Ethyl benzoate, C9H10O2, is an ester formed by the condensation of benzoic acid and ethanol. It is a colorless liquid that is almost insoluble in water...

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Benzyl alcohol

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hydrogenation of benzaldehyde, a by-product of the oxidation of toluene to benzoic acid. For laboratory use, Grignard reaction of phenylmagnesium bromide (C6H5MgBr)...

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