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| CAS No.: | 582-25-2 |
|---|---|
| Name: | Potassium benzoate |
| Article Data: | 43 |
| Molecular Structure: | |
|
|
|
| Formula: | C7H5KO2 |
| Molecular Weight: | 160.214 |
| Synonyms: | Benzoicacid, potassium salt (8CI,9CI);Potassium benzoate (6CI);Benzoic acid, potassiumsalt (1:1); |
| EINECS: | 209-481-3 |
| Density: | 1.5 g/cm3 |
| Melting Point: | >300°C |
| Boiling Point: | 249.3 °C at 760 mmHg |
| Flash Point: | 111.4 °C |
| Solubility: | soluble in ethanol; slightly soluble in methanol; insoluble in ether |
| Appearance: | White solid |
| Safety: | 22-24/25 |
| PSA: | 40.13000 |
| LogP: | 0.05010 |
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| Conditions | Yield |
|---|---|
| With hydrogen; potassium carbonate In cyclohexane at 149.84℃; under 37503.8 Torr; for 4h; Autoclave; | 95.2% |
| With potassium tert-butylate In ethanol for 1h; | |
| With potassium hydroxide In water | |
| With potassium hydroxide In water at 20℃; for 0.5h; |
| Conditions | Yield |
|---|---|
| With Triton X-114; potassium thioacetate at 150℃; | 90% |
A
- 194222-05-4
(1R,3R,5S)-tert-butyl 3-hydroxy-8-azabicyclo[3.2.1]octane-8-carboxylate
B
- 582-25-2
Potassium benzoate
| Conditions | Yield |
|---|---|
| With potassium hydroxide In ethanol at 20℃; for 72h; | A 80% B n/a |
| With potassium hydroxide In ethanol at 20℃; for 72h; | A 80% B n/a |
| Conditions | Yield |
|---|---|
| With potassium trimethylsilonate In diethyl ether at 25℃; for 0.125h; | 75% |
| With acrylic acid n-butyl ester; potassium carbonate; thiourea In water for 24h; |
| Conditions | Yield |
|---|---|
| In tetrahydrofuran | 74% |
| Conditions | Yield |
|---|---|
| With potassium trimethylsilonate In tetrahydrofuran at 20℃; for 16h; | 60% |
- 67-56-1
methanol
- 100-52-7
benzaldehyde
A
- 93-58-3
benzoic acid methyl ester
B
- 4686-14-0
2-phenyl-2-(phenylimino)acetonitrile
C
- 53170-30-2
N1-hydroxy-N1,N2-diphenylbenzamidine
D
- 582-25-2
Potassium benzoate
| Conditions | Yield |
|---|---|
| With nitrobenzene; potassium cyanide; dibenzo-18-crown-6 In benzene at 80℃; for 8h; | A 47% B 4.6% C 2% D 19.3% |
- 67-56-1
methanol
- 104-88-1
4-chlorobenzaldehyde
A
- 1126-46-1
Methyl 4-chlorobenzoate
B
- 6833-15-4
4-chlorobenzanilide
C
- 54615-66-6
α-phenylimino-p-chlorophenylacetonitrile
D
- 582-25-2
Potassium benzoate
| Conditions | Yield |
|---|---|
| With nitrobenzene; potassium cyanide; dibenzo-18-crown-6 at 80℃; for 14h; | A 44.4% B 1.2% C 2.5% D 30% |
| With nitrobenzene; potassium cyanide; dibenzo-18-crown-6 In benzene at 80℃; for 14h; | A 44.4% B 1.2% C 2.5% D 30% |
- 67-56-1
methanol
- 104-88-1
4-chlorobenzaldehyde
A
- 1126-46-1
Methyl 4-chlorobenzoate
B
- 82700-99-0
4-chloro-N-phenyl-benzimidic acid methyl ester
C
- 582-25-2
Potassium benzoate
| Conditions | Yield |
|---|---|
| With nitrobenzene; potassium cyanide; dibenzo-18-crown-6 at 80℃; for 14h; | A 38.5% B 18.3% C 19% |
- 100-52-7
benzaldehyde
- 67-63-0
isopropyl alcohol
A
- 939-48-0
isopropyl benzoate
B
- 1459-20-7
1,2-diphenyl-2-oxoethyl benzoate
C
- 4686-14-0
2-phenyl-2-(phenylimino)acetonitrile
D
- 582-25-2
Potassium benzoate
| Conditions | Yield |
|---|---|
| With nitrobenzene; potassium cyanide; dibenzo-18-crown-6 | A 2.5% B 35.3% C n/a D 27.9% |
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Chemistry
Molecular Structure of Potassium benzoate (CAS NO.582-25-2):
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IUPAC Name: Potassium benzoate
Canonical SMILES: C1=CC=C(C=C1)C(=O)[O-].[K+]
InChI: InChI=1S/C7H6O2.K/c8-7(9)6-4-2-1-3-5-6;/h1-5H,(H,8,9);/q;+1/p-1
InChIKey: XAEFZNCEHLXOMS-UHFFFAOYSA-M
Molecular Weight: 160.2117 [g/mol]
Molecular Formula: C7H5KO2
H-Bond Donor: 0
H-Bond Acceptor: 2
EINECS: 209-481-3
Appearance: White solid
Solubility: soluble in ethanol; slightly soluble in methanol; insoluble in ether
Density: 1.5 g/cm3
Melting Point: >300 °C
Sensitive: Hygroscopic
Flash Point: 111.4 °C
Enthalpy of Vaporization: 51.4 kJ/mol
Boiling Point: 249.3 °C at 760 mmHg
Vapour Pressure: 0.0122 mmHg at 25 °C
Classification Code: Pharmaceutic aid [preservative]
Uses
Potassium benzoate (CAS NO.582-25-2) 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. Potassium benzoate is also used as the whistle in many fireworks.
Production
Methods:1
By potassium bicarbonate solution and acid derived.
Methods:2
Remand from the bicarbonate solution and benzoic acid derived.
Safety Profile
Combustible when exposed to heat or flame. When heated to decomposition it emits acrid smoke and irritating fumes.
Safety Information of Potassium benzoate (CAS NO.582-25-2):
Safety Statements: 22-24/25
S22:Do not breathe dust.
S24/25:Avoid contact with skin and eyes.
WGK Germany: 1
F: 3
TSCA: No
Specification
Potassium benzoate (CAS NO.582-25-2), its Synonyms are Benzoic acid, potassium salt ; Benzoic acid, potassium salt (1:1) .