TEREPHTHALIC ACID - (100-21-0)

Inleiding

naam: terephthalic acid; 1,4-benzenedicarboxylic acid; p-phthalic acid
* IUPAC
CAS nommer: 100-21-0
chemiese formule: C8H6O4 or C6H4(COOH)2
molêre massa: 166.13084 g
Toestand van materie: white crystals/powder
massa Persent: C 57.837 %; H 3.6402 %; O 38.522 % 
isomere:  isophthalic acid  •  phthalic acid

klassifikasie

Gebruike / Function

• "Forms polyesters with glycols which are made into plastic films and sheets; in analytical chemistry." 1

Fisiese eienskappe

Smeltpunt:*
425°C 2 = 698.15 K = 797°F
Kookpunt:*
300°C 2 = 573.15 K = 572°F
300°C 3 = 573.15 K = 572°F

* - 1 atm pressure

oplosbaarheid

kwalitatiewe:
onoplosbare:  • • 3
effens oplosbaar:  3

binding

dubbelbindings: 5
trippelbindings: 0
Sigma Bonds: 18
Pi Bonds: 5
Totaal: 23
karboksielgroep Groepe: 2
hidroksielgroepe: 0
verbastering: all carbons are sp2; double bonded oxygen is sp2; single bonded oxygen is sp3

reaksies

The oxidation of p-xylene by oxygen in air:


Vir meer inligting

Bronne

(1) - 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 9238.
(2) - Dean, John A. Lange's Handbook of Chemistry, 11th ed.; McGraw-Hill Book Company: New York, NY, 1973; p 7:331.
(3) - Lide, David R. CRC Handbook of Chemistry and Physics, 83rd ed.; CRC Press: Boca Raton, FL, 2002; p 3-38.