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Sodium acetate information


"Hot ice" redirects here. For other uses, see Hot ice (disambiguation).
Sodium acetate
Skeletal formula of sodium acetate
Sodium acetate
Names
Preferred IUPAC name
Sodium acetate
Systematic IUPAC name
Sodium ethanedioate
Other names
Hot ice (sodium acetate trihydrate)
Identifiers
CAS Number
  • anhydrous: 127-09-3 checkY
  • trihydrate: 6131-90-4 checkY
3D model (JSmol)
  • anhydrous: Interactive image
Beilstein Reference
 3595639
ChEBI
  • anhydrous: CHEBI:32954 checkY
  • trihydrate: CHEBI:32138
ChEMBL
  • anhydrous: ChEMBL1354 checkY
ChemSpider
  • anhydrous: 29105 checkY
DrugBank
  • anhydrous: DB09395
ECHA InfoCard 100.004.386 Edit this at Wikidata
EC Number
  • anhydrous: 204-823-8
E number E262 (preservatives)
Gmelin Reference
 20502
KEGG
  • trihydrate: D01779
PubChem CID
  • anhydrous: 517045
  • trihydrate: 23665404
RTECS number
  • anhydrous: AJ4300010 (anhydrous)
    AJ4580000
UNII
  • anhydrous: NVG71ZZ7P0 checkY
  • trihydrate: 4550K0SC9B checkY
CompTox Dashboard (EPA)
  • anhydrous: DTXSID2027044 Edit this at Wikidata
InChI
  • InChI=1S/C2H4O2.Na/c1-2(3)4;/h1H3,(H,3,4);/q;+1/p-1 checkY
    Key: VMHLLURERBWHNL-UHFFFAOYSA-M checkY
  • anhydrous: InChI=1/C2H4O2.Na/c1-2(3)4;/h1H3,(H,3,4);/q;+1/p-1
    Key: VMHLLURERBWHNL-REWHXWOFAT
SMILES
  • anhydrous: [Na+].[O-]C(=O)C
Properties
Chemical formula
 C2H3NaO2
Molar mass 82.034 g·mol−1
Appearance White deliquescent powder or crystals
Odor Vinegar (acetic acid) odor when heated to decomposition[1]
Density 1.528 g/cm3 (20 °C, anhydrous)
1.45 g/cm3 (20 °C, trihydrate)[2]
Melting point 324 °C (615 °F; 597 K)
(anhydrous)
58 °C (136 °F; 331 K)
(trihydrate)
Boiling point 881.4 °C (1,618.5 °F; 1,154.5 K)
(anhydrous)
122 °C (252 °F; 395 K)
(trihydrate) decomposes
Solubility in water
 Anhydrous:
119 g/100 mL (0 °C)
123.3 g/100 mL (20 °C)
125.5 g/100 mL (30 °C)
137.2 g/100 mL (60 °C)
162.9 g/100 mL (100 °C)
Trihydrate:
32.9 g/100 mL (-10 °C)
36.2 g/100 mL (0 °C)
46.4 g/100 mL (20 °C)
82 g/100 mL (50 °C)[3]
Solubility Soluble in alcohol, hydrazine, SO2[4]
Solubility in methanol 16 g/100 g (15 °C)
16.55 g/100 g (67.7 °C)[4]
Solubility in ethanol Trihydrate:
5.3 g/100 mL
Solubility in acetone 0.5 g/kg (15 °C)[4]
Acidity (pKa) 24 (20 °C)[4]
4.75 (when mixed with CH3COOH as a buffer)[5]
Basicity (pKb) 9.25
Magnetic susceptibility (χ)
 −37.6·10−6 cm3/mol
Refractive index (nD)
 1.464
Structure
Crystal structure
 Monoclinic
Thermochemistry
Heat capacity (C)
 100.83 J/mol·K (anhydrous)[6]
229 J/mol·K (trihydrate)[7]
Std molar
entropy (S⦵298)
 138.1 J/mol·K (anhydrous)[6]
262 J/mol·K (trihydrate)[2]
Std enthalpy of
formation (ΔfH⦵298)
 −709.32 kJ/mol (anhydrous)[4]
−1604 kJ/mol (trihydrate)[2]
Gibbs free energy (ΔfG⦵)
 −607.7 kJ/mol (anhydrous)[4]
Pharmacology
ATC code
 B05XA08 (WHO)
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Irritant
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 0: Exposure under fire conditions would offer no hazard beyond that of ordinary combustible material. E.g. sodium chlorideFlammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilInstability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calciumSpecial hazards (white): no code
0
1
1
Flash point >250 °C (482 °F; 523 K)[5]
Autoignition
temperature
 607 °C (1,125 °F; 880 K)[5]
Lethal dose or concentration (LD, LC):
LD50 (median dose)
 3530 mg/kg (oral, rat)
> 10000 mg/kg (rabbit, dermal)
LC50 (median concentration)
 > 30 g/m3 (rat, 1h)
Safety data sheet (SDS) Fisher Scientific
Related compounds
Other anions
 Sodium formate
Sodium propionate
Other cations
 Potassium acetate
Calcium acetate
Related compounds
 Sodium diacetate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Sodium acetate, CH3COONa, also abbreviated NaOAc,[8] is the sodium salt of acetic acid. This colorless deliquescent salt has a wide range of uses.

  1. ^ "Sodium Acetate". International Chemical Safety Cards. National Institute of Occupational Safety and Health. 2018-09-18.
  2. ^ a b c "sodium acetate trihydrate". chemister.ru.
  3. ^ Seidell, Atherton; Linke, William F. (1952). Solubilities of Inorganic and Organic Compounds. Van Nostrand.
  4. ^ a b c d e f "sodium acetate". chemister.ru.
  5. ^ a b c Sigma-Aldrich Co., Sodium acetate. Retrieved on 2014-06-07.
  6. ^ a b Acetic acid, sodium salt 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 2014-05-25)
  7. ^ Acetic acid, sodium salt, hydrate (1:1:3) 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 2014-05-25)
  8. ^ Clayden, Jonathan; Greeves, Nick; Warren, Stuart; Wothers, Peter (2001). Organic Chemistry (1st ed.). Oxford University Press. ISBN 978-0-19-850346-0.

and 26 Related for: Sodium acetate information

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Sodium acetate

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Sodium acetate, CH3COONa, also abbreviated NaOAc, is the sodium salt of acetic acid. This colorless deliquescent salt has a wide range of uses. Sodium...

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Acetate

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Thus, HOAc is the symbol for acetic acid, NaOAc for sodium acetate, and EtOAc for ethyl acetate (as Ac is common symbol for acetyl group CH3CO).The pseudoelement...

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Phenyl acetate

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an acetate salt, via saponification: heating the phenyl acetate with a strong base, such as sodium hydroxide, will produce phenol and an acetate salt...

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Heating pad

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of sodium acetate into the solution which then act as nucleation sites for the crystallization of the sodium acetate into the hydrated salt (sodium acetate...

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Ethyl acetate

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stoichiometric amount of a strong base, such as sodium hydroxide. This reaction gives ethanol and sodium acetate, which is unreactive toward ethanol: CH3CO2C2H5...

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Methyl acetate

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acetate and a base, for example sodium hydroxide, is a second-order reaction with respect to both reactants. Methyl acetate is a Lewis base that forms 1:1...

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Sodium diacetate

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number E262 and is used to impart a salt and vinegar flavor. Sodium acetate PubChem. "Sodium diacetate". PubChem. Retrieved 2019-10-24. Barrow, Michael...

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Saponification

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chain, its salt is called a soap. The saponification of ethyl acetate gives sodium acetate and ethanol: C2H5O2CCH3 + NaOH → C2H5OH + NaO2CCH3 Vegetable...

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Acetic acid

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significant derivatives: Sodium acetate, used in the textile industry and as a food preservative (E262). Copper(II) acetate, used as a pigment and a fungicide...

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Sodium bicarbonate

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+ H2O+CO2 H2CO3 → H2O + CO2(g) Sodium bicarbonate reacts with acetic acid (found in vinegar), producing sodium acetate, water, and carbon dioxide: NaHCO3...

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Sodium formate

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solid sodium formate can even be increased by moistening with aqueous potassium formate or potassium acetate solutions. The degradability of sodium formate...

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Casein

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dispersible in dilute alkalis and in salt solutions such as aqueous sodium oxalate and sodium acetate. The enzyme trypsin can hydrolyze a phosphate-containing peptone...

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Carboxylate

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meaning that they can be deprotonated by many bases, such as sodium hydroxide or sodium bicarbonate.: 271–2  RCOOH + NaOH ⟶ RCOONa + H 2 O {\displaystyle...

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Nuclear reprocessing

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to be a superior technology for larger scale reprocessing. The sodium uranyl acetate process was used by the early Soviet nuclear industry to recover...

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Sodium salts

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HCOONa, the sodium salt of formic acid or sodium acetate, CH3COONa, the sodium salt of acetic acid, etc.) and sodium salts of inorganic acids (sulfonic acids...

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Sodium trifluoroacetate

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at 100 °C. Sodium trifluoroacetate is a useful reagent for trifluoromethylation. Sodium fluoroacetate Trifluoroacetic acid Sodium acetate Chang, Ying;...

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Vinegar

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some varieties this involves the conversion of the vinegar to sodium acetate or sodium diacetate, to avoid dampening the product in manufacture. Chinese...

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Wohl degradation

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the alcohol groups to acetate groups. In the final step sodium methoxide in methanol is added, leading to removal of all the acetate groups and ejection...

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List of additives in cigarettes

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Smoke flavor Snakeroot oil Sodium acetate Sodium benzoate Sodium bicarbonate Sodium carbonate Sodium chloride Sodium citrate Sodium hydroxide Solanone Spearmint...

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MRS agar

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Rogosa [Wikidata], and Margaret Elisabeth Sharpe [Wikidata]. It contains sodium acetate, which suppresses the growth of many competing bacteria (although some...

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Silver acetate

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silver nitrate and sodium acetate. The structure of silver acetate consists of 8-membered Ag2O4C2 rings formed by a pair of acetate ligands bridging a...

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Cinnamic acid

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synthesis of ethyl cinnamate via the reaction of ethyl acetate with benzaldehyde in the presence of sodium as base. Another way of preparing cinnamic acid is...

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Cellulose acetate phthalate

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phthaloylation of cellulose acetate are acetic acid, acetone, or pyridine. The basic catalysts employed are anhydrous sodium acetate when using acetic acid...

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Tapioca pearl

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contain any of them. Tapioca also contains very little cholesterol, fat, or sodium. To support to the creation of tapioca pearls, some additives are used,...

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Hydrolysis

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example, sodium acetate dissociates in water into sodium and acetate ions. Sodium ions react very little with the hydroxide ions whereas the acetate ions...

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Crystallization

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crystals are composed of a cation and anion, also known as a salt, such as sodium acetate. The second type of crystals are composed of uncharged species, for...

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