| Chemical |
Adipic acid |
| CAS-number : |
124-04-9 |
| |
| Synonyms : |
| 1.4-Butanedicarboxylic acid |
| Hexanedioic acid |
| |
| Sumformula of the chemical : |
| COOH-(CH2)4-COOH
C6H10O4 |
| EINECS-number : |
| 2046733 |
| |
| Molecular weight : |
146.14 |
| |
| Spesicif gravity (water=1) : |
| 1.37 |
|
| |
| Vapor density (air=1) : |
| 5.04 |
|
| |
| Vapor pressure, mmHg : |
| 0.073 |
at 18.5 °C, Danly & Campbell 1978 |
| |
| Water solubility, mg/l : |
| 15000 |
at 15 °C |
| 23000 |
MITI 1992 |
| |
| Melting point, °C : |
| 151 |
151 - 153 °C |
| 153 |
|
| 150 |
150-153, MITI 1992 |
| |
| Boiling point, °C : |
| 265 |
100 mmHg, MITI 1992 |
| |
| Sublimation point, °C : |
| 337.5 |
Howard 1989 |
| |
| pKa : |
| 4.44 |
pKa1 |
| 5.4 |
pKa2, Serjeant 1979 |
| |
| Log octanol/water coefficient, log Pow : |
| 0.08 |
|
| 0.08 |
Hansch & Leo 1985 |
| |
| Henry's law constant, Pa x m3/mol : |
| 0.095 |
Howard 1989 |
| |
| Volatilization : |
For molecules with such low Henry's Law constant,
volatilization will be slow with the rate being controlled by
slow diffusion through air.
The half-life for volatilization
from a model river 1 m deep with a 1 m/sec current and a 3
m/sec wind is 47 days (Lyman et al. 1982).
|
| |
| Adsorption/desorption : |
Adipic acid is extremely soluble in water and therefore would
not adsorb appreciable to soil (Lyman et al. 1982).
|
| |
| Photochemical degradation in air : |
The adipic acid vapor should react with photochemically
produced hydroxyl radicals in the atmosphere by H-atom
abstraction with a resulting half-life of 4.4 days (GEMS 1986).
|
| |
| Photochemical degradation in water : |
Photooxidation by ultra violet light in aqueous medium at 90 -95
°C; time for the formation of CO2 (% of theoretical):
25 %: 2.0 hr
50 %: 5.0 hr
75 %: 32.4 hr
(Verschueren 1983).
|
| |
| Aerobic degradation in water : |
Adipic acid is readily degradable in biodegradability screening
tests.
After a 5-10 hr lag, 50-75% of theoretical BOD was
obtained in 90-100 hr (Urano & Kato 1986).
In four of the tests that were designed as models for
degradability in the surface water, the results ranged from
92% of theoretical BOD in 14 days to 83% in 30 days (Gerike
& Fischer 1979) ( Zahn & Huber 1975).
A test designed to simulate degradation in polluted river
water, the AFNOR test, gave a 5-day BOD of 36% of theoretical
(Dore et al. 1975).
In 5 tests designed to simulate treatment plants, result ranged
from 99% DOC removal in one day to 92% of theoretical BOD in 14
days (Zahn & Wellens 1980) ( Zahn & Huber 1975).
Adipic acid was rapidly degraded in a river die-away test using
Main River (Germany) water; 50% and 90% degradation being
achieved in 3.5 and 7 days, respectively, at concn levels of
700 mg/l (Zahn & Wellens 1980).
|
| |
| Anaerobic degradation in water : |
Under anaerobic conditions, it was 82% degraded after 10-day
lag in a screening test.
It is degraded in an anaerobic reactor
employing acetate-enriched cultures and a 20-day hydraulic
retention time with 67% utilization after 90 days of
acclimation (Chou et al. 1979)
|
| |
| Total degradation in water : |
Biodegradation:
68-90% by BOD
period: 14d
substance: 100 mg/l
sludge: 30 mg/l
(MITI 1992)
|
| |
| Other information of bioaccumulation : |
The log octanol/water partition coefficient suggests that the
potential for bioconcentration in fish is negligible (Lyman et
al. 1982).
|
| |
| Other information of mammals : |
Mammals: rat: inhalation: no effect level: 126 g/l, 15 x 6 hr
(Verschueren 1983).
|
| |
| Effects on microorganisms : |
Bacteria: no effect; 100 mg/l (Verschueren 1983).
|
| |
| LC50 values to fishes, mg/l : |
| 97 |
srv, act, 96 hr, Pimephales promelas, |
| |
Vincent et al. 1976 |
References |
| 2969 | Chou W.
L. et al. 1979.
Biotechnol.
Bioeng.
Symp. 8: 391 - 414. |
| 3150 | Danly, D.E. & Campbell, C.
R. 1978.
Adipic Acid IN: Kirk-Othmer
Encycl.
Chem.
Tech. 3rd ed. 1:510-31.
|
| 349 | Dore, M., Brunet, N., Legube, B. 1975.
Participation de
differents composes organiques a la valeur des criteres globaux de
pollution.
La tribune du Cebedeau, 28(374): 3 - 11. |
| 3133 | GEMS; 1986 -.
Graphical Exposure Modeling System.
FAP.
Fate of
Atmos Pollut.
|
| 3151 | Gerike, P. & Fischer, W.
K. 1979.
Ecotox.
Environ.
Safety
3:159-73.
|
| 2958 | Hansch, C and Leo, A.
J. 1985.
Medchem Project Issue No 26.
Claremont C.A.
Pomona College. |
| 3047 | Howard, P.
H. 1989.
Handbook of Environmental Fate and
Exposure Data for Organic Chemicals.
Vol.
I: Large Production
and Priority Pollutants.
Lewis Publishers, Inc.
Chelsea. pp 574.
|
| 2960 | Lyman, W.
J. et al. 1982.
Handbook of Chemical Property
Estimation Methods.
Environmental behavior of organic
compounds.
McGraw-Hill New York. |
| 3105 | MITI 1992.
Biodegradation and bioaccumulation data of existing
chemicals based on the CSCL Japan.
Compild under the Safety
Division Basic Industries Bureau Ministry of International
Trade & Industry, Japan.
Edited by Chemicals Inspection &
Testing Institute, Japan.
|
| 3099 | Serjeant, E.
P. & Dempsey, B. 1979.
Ionisation constants of
organic acids in aqueous solution.
IUPAC Chemical Data Series,
New York, NY: Pergamon Press 989pp.
|
| 3153 | Urano, K. & Kato, Z. 1986.
J.
Hazardous Materials. 13:147-59.
|
| 1468 | Verschueren, K. 1983.
Handbook of environmental data of
organic chemicals.
Van Nostrand Reinhold Co.
Inc., New York.
1310 s. |
| 1474 | Vincent, R.M., Arthur, J.W. & Walbridge, C.R. 1976.
Acute
toxicity of selected organic compounds to fathead minnows.
EPA-600/3-76-097. |
| 3154 | Zahn, R. & Huber, W. 1975.
Tenside Deterg. 12:266-70.
|
| 2399 | Zahn, R. & Wellens, H. 1980.
Prüfung der biologischen
Abbaubarkeit im Standversuch weitere Erfahrungen und neue
Einsatzmäglichkeiten.
Z.f.
Wasser und Abwasser Forschung 13: 1
- 7.
|
