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CAS No 75-98-9 , 2,2-dimethylpropanoic acid Search by region : China

  • Name: 2,2-dimethylpropanoic acid
  • Synonyms: Trimethylacetic acid; 2,2-Dimethylpropionic acid; 75-98-9; 2,2-DIMETHYLPROPANOIC ACID; 2,2-dimethyl-;2,2-dimethylpropanoic acid; Neopentanoic acid; Propanoic acid;
  • CAS Registry Number:
  • Transport: UN 3261 8/PG 2
  • Melting Point: 33-36 ºC
  • Flash Point: 63 ºC
  • Boiling Point: 163-164 ºC
  • Density: 0.905
  • Refractive index: 1.393
  • Water Solubility: 25 G/L (20 ºC)
  • Safety Statements: R21/22;R34
  • Hazard Symbols: C: Corrosive;
  • Flash Point: 63 ºC
  • EINECS: 200-922-5
  • Molecular Weight: 102.1317
  • InchiKey: IUGYQRQAERSCNH-UHFFFAOYSA-N
  • InChI: InChI=1S/C5H10O2/c1-5(2,3)4(6)7/h1-3H3,(H,6,7)
  • Risk Statements: S26;S36/37/39;S45
  • Molecular Formula: C5H10O2
  • Molecular Structure:CAS No:75-98-9 2,2-dimethylpropanoic acid

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References of 2,2-dimethylpropanoic acid
Title: Pivalic Acid
CAS Registry Number: 75-98-9
CAS Name: 2,2-Dimethylpropanoic acid
Synonyms: a,a-dimethylpropionic acid; trimethylacetic acid
Molecular Formula: C5H10O2
Molecular Weight: 102.13
Percent Composition: C 58.80%, H 9.87%, O 31.33%
Line Formula: HOOCC(CH3)3
Literature References: Prepd by the reaction of tert-butylmagnesium chloride and carbon dioxide: Bouveault, Compt. Rend. 138, 1108 (1904); Puntambeker, Zoellner, Org. Synth. 8, 104 (1928); other methods: ibid. 108. Forms higher esters (e.g., isobutyl ester) only with difficulty.
Properties: Needles, mp 35.5°. bp760 163.8°; d50 0.905; nD36.5 1.3931. pKa (25°): 5.01. One gram dissolves in 40 ml water. Freely sol in alcohol, ether.
Melting point: mp 35.5°
Boiling point: bp760 163.8°
pKa: pKa (25°): 5.01
Index of refraction: nD36.5 1.3931
Density: d50 0.905
 
Derivative Type: Ethyl ester
Molecular Formula: C7H14O2
Molecular Weight: 130.18
Percent Composition: C 64.58%, H 10.84%, O 24.58%
Properties: Liquid. d418 0.8580; bp 118.2°; nD18 1.3922.
Boiling point: bp 118.2°
Index of refraction: nD18 1.3922
Density: d418 0.8580