ACIDO ADIPICO - (124-04-9)

introduzione

Nome: adipic acid; hexanedioic acid; hexane-1,6-dioic acid
* IUPAC
Numero CAS: 124-04-9
Formula chimica: C6H10O4 or (CH2)4(COOH)2
Massa molare: 146.1412 g
Percentuale di massa: C 49.311 %; H 6.8970 %; O 43.791 % 
isomeri:  ethyl oxalate

Classificazione

Usi / Funzione

• "Adipic acid is used in large quantities for the manufacture of nylon." 1

• "Manuf[acture] artificial resins, plastics (nylon), urethan foams. Used as acidulant in baking powders instead of tartaric acid, cream of tartar, and phosphates because adipic acid is not hygroscopic. As an intermediate in lubricating oil additives." 2

Proprietà fisiche

Punto di fusione:*
153.2°C 3 = 426.35 K = 307.76°F
151°C 4 = 424.15 K = 303.8°F
Punto di ebollizione:*
337.5°C 3 = 610.65 K = 639.5°F
Densità (g/cm3):
1.360 at 25°C 3
* - 1 atm pressure

solubilità

qualitativo:
leggermente solubile:  4
mescolabile:  • 4

bonding

doppi legami: 2
tripli legami: 0
Sigma Bonds: 19
pi Bonds: 2
Totale: 21
carboxyl Gruppi: 2
gruppi idrossilici: 0

Termochimica

ΔHf° (s): -237.60 kcal/mol 5 = -994.12 kJ/mol
ΔHf° (ℓ): -235.51 kcal/mol 5 = -985.37 kJ/mol
ΔGf° (ℓ): -177.17 kcal/mol 7 = -741.28 kJ/mol
The heat of combustion is the amount of heat released when one mole of a substance undergoes combustion according to the general reaction equation:
CxHyOz + 0.25(4x+y-2z) O2 (g) → x CO2 (g) + 0.5y H2O (ℓ)

ΔHcomb° (s): -668.275 kcal = -2796.0916 kJ
ΔHcomb° (ℓ): -670.365 kcal = -2804.83616 kJ

Per maggiori informazioni

fonti

(1) - Estok, George K. Organic Chemistry: A Short Text; W.B. Saunders: Philadelphia, 1959; p 141.
(2) - The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals, 13th ed.; Budavari, S.; O'Neil, M.J.; Smith, A.; Heckelman, P. E.; Kinneary, J. F., Eds.; Merck & Co.: Whitehouse Station, NJ, 2001; entry 163.
(3) - Lide, David R. CRC Handbook of Chemistry and Physics, 83rd ed.; CRC Press: Boca Raton, FL, 2002; p 3-187.
(4) - Estok, George K. Organic Chemistry: A Short Text; W.B. Saunders: Philadelphia, 1959; p 138.
(5) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:65.
(6) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:65.
(7) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:65.