Chemical |
n-Amylacetate |
CAS-number : |
628-63-7 |
|
Synonyms : |
1-pentanolacetate |
Acetic acid, pentyl ester |
amylacetate |
amylacetic ester |
prim-amylacetate |
|
Sumformula of the chemical : |
C7H14O2 |
EINECS-number : |
2110473 |
|
Uses : |
Solvent.
|
|
Odor : |
Characteristic.
Quality: sweet, ester, banana.
Hedonic tone: pleasant.
Odour index: 25.047
(Hellman & Small 1974).
Threshold: unadapted panellists: 20 ppm
after adaption with pure odourant: 3000 ppm
(Verschueren 1983).
Human odour perception: non perception: 0.5 mg/m3
perception : 0.6 mg/m3 = 0.11 ppm
human reflex response : no response: 0.12 mg/m3
adverse response: 0.30 mg/m3
(Stern 1968).
|
|
Molecular weight : |
130.2 |
|
Spesicif gravity (water=1) : |
0.879 |
at 20/20 °C |
|
Conversion factor, 1 ppm in air=_mg/m3 : |
5.32 |
mg/m3 |
|
Conversion factor, 1 mg/m3 in air=_ppm : |
0.188 |
ppm |
|
Water solubility, mg/l : |
1800 |
at 20 °C |
|
Boiling point, °C : |
148 |
at 737 mm |
149.3 |
|
|
Volatilization : |
Relative volatility (nBuAc=1) = 0.42
|
|
Other information of degradation : |
Impact on biodegradation processes:
Inhibition by degradation of glucose by Pseudomonas fluorescens at
350 mg/l; inhibition of degradation of glucose by
Escherichia coli at: > 1000 mg/l (Bringmann & Kühn 1960).
|
|
LD50 values to mammals in oral exposure, mg/kg : |
7400 |
orl-rbt |
|
Effects on microorganisms : |
Bacteria: Escherichia coli: no effect level; 1 g/l (Meinck et al.
1970).
Toxicity threshold (cell multiplication inhibition test):
bacteria: Pseudomonas putida: 145 mg/l (Bringmann & Kühn 1980a). |
|
LOEC values to algae, mg/l : |
63 |
rpd, act, Microcystis aeruginosa, |
|
Bringmann & Kühn 1976 |
80 |
rpd, act, Scenedesmus quadricauda, |
|
Bringmann & Kühn 1980a |
|
LC50 values to fishes, mg/l : |
10 |
srv, act, 96 hr, Carassius auratus, |
|
Verschueren 1983 |
|
-- |
650 |
srv, act, 96 hr, Lepomis macrochirus, |
180 |
srv, act, 96 hr, Menidia beryllina |
|
Dawson et al. 1977 |
|
Other information of water organisms : |
Toxicity threshold (cell multiplication inhibition test):
algae: Microcystis aeruginosa: 63 mg/l
green algae: Scenedesmus quadricauda: 80 mg/l
protozoa (Entosiphon sulcatum): 226 mg/l
protozoa (Uronema parduczi): 550 mg/l
(Bringmann & Kühn 1976, 1980a).
Crustacean: Daphnia: 48 hr threshold toxic effect at 23 °C:
440 ppm (McKee & Wolf 1971).
|
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. |
1856 | Bringmann, G. & Kühn, R. 1960.
Vergleichende toxikologische
Befunde an Wasser-Bakterien.
GWF-Wasser/Abwasser 6j. 81: 337. |
189 | Bringmann, G. & Kühn, R. 1980b.
Bestimmung der biologischen
Schadwirkung wassergefahrdender Stoffe gegen Protozoen.
II.
Bakterienfressende Ciliaten, Z.
Wasser/Abwasser Forsch. 1: 26 -
31. |
327 | Dawson, G.W., Jennings, A.L., Drozdowski, D. & Rider, E.
1977a.
The acute toxicity of 47 industrial chemicals to fresh
and saltwater fishes.
J.
Hazardous Materials 1 (1975/77): 303
- 318. |
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. |
922 | McKee, J.E. & Wolf, H.W. 1971.
Water Quality Criteria.
US
PHS, Control Board, Pub. 3-A, April. |
950 | Meinck, F., Stoof, H. & Kohlschutter, H. 1970.
Les eaux
residuaires industrielles. |
1598 | Stern, A.C. 1968.
Air Pollution.
Vol. 3, Academic Press N.Y.,
London. 661 pp. |
1468 | Verschueren, K. 1983.
Handbook of environmental data of
organic chemicals.
Van Nostrand Reinhold Co.
Inc., New York.
1310 s. |