| Chemical |
Decahydronaphthalene |
| CAS-number : |
91-17-8 |
| |
| Synonyms : |
| cis-decalin (CAS 493-01-6) |
| Decalin |
| trans-decalin (CAS 493-02-7) |
| |
| Uses : |
Solvent for oils, fats, waxes, resins, rubbers etc.
|
| |
| Odor : |
Threshold odour concentration: 0.1 mg/l.
(Verschueren 1983)
|
| |
| Molecular weight : |
138.25 |
| |
| Spesicif gravity (water=1) : |
| 0.8967 |
at 20 °C |
| |
| Conversion factor, 1 ppm in air=_mg/m3 : |
| 5.75 |
mg/m3, Verschueren 1983 |
| |
| Conversion factor, 1 mg/m3 in air=_ppm : |
| 0.17 |
ppm, Verschueren 1983 |
| |
| Vapor pressure, mmHg : |
| 1 |
at 23 °C |
| |
| Melting point, °C : |
| -43 |
cis-decalin |
| -31 |
trans-decalin |
| |
| Boiling point, °C : |
| 194 |
cis-decalin |
| 186 |
trans-decalin |
| |
| Total degradation in water : |
Biodegradation (mixture of cis-form and trans-form):
1-3% by BOD
period: 28d
substance: 100 mg/l
sludge: 30 mg/l
(MITI 1992)
|
| |
| Other information of degradation : |
Degradation in seawater by oil oxidizing micro-organisms: 13.6%
breakdown after 21 days at 22 °C in stoppered bottles
containing a 1000 ppm mixture of alkanes, cycloalkkanes and
aromatics.
(McKenzie & Hughes 1976)
|
| |
| Bioconcentration factor, fishes : |
839
2380
1170
3050
1290
2400
1300
2510 |
839 - 2380, 8w, Cyprinus carpio, conc 0.0021 mg/l cis-
1170 - 3050, 8w, Cyprinus carpio, conc 0.0028 mg/l trans-
1290 - 2400, 8w, Cyprinus carpio, conc 0.00021 mg/l cis-
1300 - 2510, 8w, Cyprinus carpio, conc 0.00028 mg/l trans-
MITI 1992
|
| |
| Other information of mammals : |
Rat: inhalation: no effect level: 200 ppm, 20x6hr (Gage 1970)
guinea pig: inhalation: 1/3: 319 ppm, 8hr/day, 1d
2/3: 319 ppm, 8hr/day, 21d
3/3: 319 ppm, 8hr/day, 23d
(Summer 1971)
|
| |
| LC50 values to fishes, mg/l : |
| 1.84 |
48hr, Oryzias latipes, MITI 1992 |
| |
| Effects on physiology of water organisms : |
Mussel larvae (Mytilus edulis):
+/- 20 % reduction of growth rate at 10 ppm and 50 ppm
+/- 5 % reduction of growth rate at 100 ppm
(Verschueren 1983)
|
References |
| 222 | Cage, J.C. 1970.
The subacute inhalation toxicity of 109
industrial chemicals.
British J.
Indust.
Med. 27. |
| 1866 | McKenzie, P. & Hughes, D.E. 1976.
Microbial degradation of oil
and petrochemicals in the sea.
In: Microbiology in agriculture,
fisheries and food.
Edited by Skinner, F.A. & Carr, J.G.,
Academic Press. |
| 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.
|
| 230 | Summer, W. 1971.
Odor pollution of air, causes and control
1971.
Leonard Hill Books. |
| 1468 | Verschueren, K. 1983.
Handbook of environmental data of
organic chemicals.
Van Nostrand Reinhold Co.
Inc., New York.
1310 s. |
