| Chemical |
2,4-Pentanedione |
| CAS-number : |
123-54-6 |
| |
| Synonyms : |
| 2,4-pentaanidioni |
| asetyyliasetoni |
| diasetyylimetaani |
| |
| Sumformula of the chemical : |
| C5H8O2 |
| EINECS-number : |
| 2046340 |
| |
| Odor : |
Quality: sour, rancid
Hedonic tone: unpleasant
Threshold odour concentration
absolute: 0.01 ppm
50 % recognition: 0.020 ppm
100 % recognition: 0.024 ppm
Odour index 100 % recognition: 384 166
(Hellman & Small 1974)
|
| |
| Water solubility, mg/l : |
| 100000 |
>100000, MITI 1992 |
| |
| Melting point, °C : |
| -23 |
MITI 1992 |
| |
| Boiling point, °C : |
| 137 |
137-141, MITI 1992 |
| |
| Total degradation in water : |
Biodegradation:
79-88% by BOD
period: 28d
substance: 100 mg/l
sludge: 30 mg/l
(MITI 1992)
|
| |
| Effects on microorganisms : |
Toxicity threshold (cell multiplication inhibition test):
bacteria (Pseudomonas putida): 67 mg/l
(Bringmann & Kühn 1980a)
|
| |
| EC50 values to microorganism, mg/l : |
| 375 |
Microtox, Nacci et al. 1986 |
| |
| LOEC values to algae, mg/l : |
| 8.5 |
rpd, schr, Microcystis aeruginosa |
| |
Bringmann & Kühn 1976 |
| |
-- |
| 2.7 |
rpd, schr, Scenedesmus quadricauda |
| |
Bringmann & Kühn 1980a |
| |
| LC50 values to crustaceans, mg/l : |
| 217 |
>217, 96hr, Orconectes nais |
| |
Phipps & Holcombe 1985 |
| |
| LC50 values to fishes, mg/l : |
| 71.6 |
96hr, Salmo gairdneri |
| 74.3 |
96hr, Lepomis macrochirus |
| 155 |
96hr, Pimephales promelas |
| 107 |
96hr, Carassius auratus |
| 83.6 |
96hr, Ictalurus punctatus |
| |
Phipps & Holcombe 1985 |
| |
-- |
| 104 |
96 hr, Pimephales promelas, Brooke et al. 1984 |
| |
-- |
| 175 |
96 hr, Pimephales promelas, Geiger et al. 1985 |
| |
| EC50 values to fishes, mg/l : |
| 68.5 |
96 hr, mbt, Pimephales promelas, Brooke et al. 1984 |
| |
| Other information of water organisms : |
LOEC 5.9 mg/l, rpd, schr, Uronema parduczi (Bringmann & Kühn
1980b).
LC50, 155 mg/l, 96hr, snail, Phipps & Holcombe 1985.
Toxicity threshold (cell multiplication inhibition test):
green algae (Scenedesmus quadricauda): 2.7 mg/l
protozoa (Entosiphon sulcatum): 11 mg/l
(Bringmann & Kühn 1980a)
|
References |
| 187 | Bringmann, G. & Kühn, R. 1976.
Vergleichende Befunde der
Schadwirkung wassergefährdender Stoffe gegen Bakterien
(Pseudomonas putida) und Blaualgen (Microcystis aeruginosa).
Gwf-Wasser-Abwasser 117(9). |
| 188 | Bringmann, G. & Kühn, R. 1980a.
Comparison of the toxicity
thresholds of water pollutants to bacteria, algae and
protozoa in the cell multiplication inhibition test.
Water
Res. 14: 231 - 241. |
| 189 | Bringmann, G. & Kühn, R. 1980b.
Bestimmung der biologischen
Schadwirkung wassergefahrdender Stoffe gegen Protozoen.
II.
Bakterienfressende Ciliaten, Z.
Wasser/Abwasser Forsch. 1: 26 -
31. |
| 3295 | Brooke, L.
T. et al. 1984.
Acute toxicities of organic
chemicals to fathead minnows (Pimephales promelas); Vol 1.
Center for Lake Superior Environmental Studies University of
Wisconsin-Superior, Superior, Wisconsin, U.S.A.
|
| 3296 | Geiger, D.
L. et al. 1985.
Acute toxicities of organic
chemicals to fathead minnows (Pimephales promelas) Vol. 2.
Center for Lake Superior Environmental Studies, University of
Wisconsin-Superior, Superior, Winconsin, U.S.A. 326.
|
| 1673 | Hellman, T.M. & Small, F.H. 1974.
Characterization of the odour
properties of 101 petrochemicals using sensory methods.
J.
Air
Pollut.
Control Assoc. 24: 979 - 982. |
| 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.
|
| 2417 | Nacci, D. et al. 1986.
Comparative evaluation of three rapid
marine toxicity tests: Sea Urchin Early Growth test, Sea Urchin
Sperm Cell Toxicity test and Microtox.
Environ.
Toxicol.
Chem.
5: 521. |
| 1123 | Phipps, G.L. & Holcombe, G.W. 1985.
A method for multiple
species toxicant testing: acute toxicity of 10 chemicals to
5 vertebrates and 2 invertebrates.
Environm.
Pollut.
(Ser A)
38: 141 - 157. |
| 2413 | Walker, J.
D. 1987.
Effects of chemicals on microorganisms.
Journal WPCF 59 (6): 614 - 625. |
