| ADIPIC ACID |
| CHEMICAL NAME |
hexanedioc acid |
| SYNONYMS |
adipic acid 1,4-butanedicarboylic acid |
| STRUCTURAL FORMULA |
HOOC - (CH 2 ) 4 - COOH |
| MOLECULAR WEIGHT |
146, 146 |
| CAS No. (CHEMICAL ABSTRACT SERVICE) |
124 - 04 -9 |
| CE No. (COUNT OF EUROPE) |
607 - 144 - 00 - 9 |
| ASSAY % |
99.7 Min., 100.2 max |
| WATER % |
0.20 max |
| ASH |
2.0 ppm max |
| IRON AS Fe |
0.5 ppm max |
| METHANOL SOLUTION COLOUR (APHA) |
6 max |
TOTAL NITROGEN (TN)
mpm
ppm |
15 max
1.5 max |
| MOLECULAR WEIGHT |
146.14 |
| BOILING POINT, 760 mm Hg, o C |
330 with decomposition |
| MELTING POINT, o C |
152.1 |
DENSITY (SOLID),
g/cc
lb./cu. ft loose
lb./cu. ft packed |
1.366
40
50 |
VISCOSITY (MELT)
160 o C, cps
193 o C, cps |
4.54
2.64 |
| SPECIFIC HEAT OF SOLID, cal/g |
0.583 |
| SPECIFIC HEAT OF VAPOR, 300 o C, cal/g |
0.40(est.) |
| HEAT OF VAPORIZATION, cal/g |
130.9 |
| HEAT OF COMBUSTION, cal/g |
4579 |
| HEAT OF FUSION, cal/g |
27.4 |
| HYGROSCOPICITY |
Non-hygroscopic at 27 o C at 85% RH |
| FLASH POINT (CLEVELAND OPEN CUP), o C |
210 |
| CRYSTAL |
Monoclinic |
| CRYSTAL HABIT |
Needles |
IONIZATION CONSTANTS AT 18 CC
K 1
K 2 |
4.6 X 10 -5
3.6 X 10 -6 |
ACIDITY OF AQUEOUS SOLUTIONS, 25 o C
ADI-PURE
% by wt
0.1
0.2
0.4
0.6
1.2
2.5 |
pH
3.2
3.1
3.0
2.9
2.8
2.7 |
VAPOR PRESSURE VERSUS TEMPERATURE
°C
206
245
265 |
mm Hg
10
50
100 |
