| Chemical |
2-Naphthol |
| CAS-number : |
135-19-3 |
| |
| Synonyms : |
| 2-naftoli |
| 2-Naphthalenol |
| beta-naftoli |
| beta-naphthol |
| |
| Sumformula of the chemical : |
| C10H8O |
| EINECS-number : |
| 2051827 |
| |
| Uses : |
Dyes; pigments; anti-oxidants for rubber, fats, oils; synthesis
of fungicides; pharmaceuticals; perfumes.
|
| |
| State and appearance : |
colourless leaflets
|
| |
| Molecular weight : |
144.18 |
| |
| Vapor pressure, mmHg : |
| 5 |
145°C |
| |
| Water solubility, mg/l : |
| 740 |
25°C |
| |
| Melting point, °C : |
| 122 |
|
| 123 |
MITI 1992 |
| |
| Boiling point, °C : |
| 295 |
|
| 285 |
285 - 286, MITI 1992 |
| |
| Log octanol/water coefficient, log Pow : |
| 2.7 |
Sangster 1989 |
| |
| Total degradation in water : |
Biodegradation:
68% by BOD
period: 14d
substance: 100 mg/l
sludge: 30 mg/l
(MITI 1992)
|
| |
| Ready biodegradability : |
Confirmed to be biodegradable (Anon. 1987). |
| |
| LD50 values to mammals in oral exposure, mg/kg : |
| 1960 |
orl-rat, Lewis & Sweet 1984 |
| |
| LDLo values to mammals in oral exposure, mg/kg : |
| 100 |
orl-mus, orl-cat, Lewis & Sweet 1984 |
| |
| LD50 values to birds in oral exposure, mg/kg : |
| 100 |
>100, orl-Agelaius phoeniceus |
| |
Schafer et al. 1983 |
| |
| EC50 values to algae, mg/l : |
| 19 |
pht, 4 hr, Selenastrum capricornutum |
| |
Millemann et al. 1984 |
| |
| LC50 values to crustaceans, mg/l : |
| 3.5 |
48 hr, Daphnia magna, Millemann et al. |
| |
1984 |
| |
| LC50 values to fishes, mg/l : |
| 0.12 |
27 d, Salmo gairdneri |
| 3.5 |
96 hr, Pimephales promelas |
| |
Millemann et al. 1984 |
| |
-- |
| 0.08 |
0d, embryo-larval, Salmo gairdneri |
| 0.07 |
4d, embryo-larval, Salmo gairdneri |
| 6.36 |
0d, embryo-larval, Micropterus salmoides |
| 1.77 |
4d, embryo-larval, Micropterus salmoides |
| |
Black et al. 1983 |
References |
| 1848 | Anon. 1987a.
The list of the existing chemical substances tested
on biodegradability by microorganisms or bioaccumulation in
fish body by Chemicals Inspection & Testing Institute.
Ministry
of International Trade and Industry, MITI.
Japan. |
| 2752 | Black, A.
J., Birge, W.
J., Westerman, A.
G. and Francis, P.
C.
1983.
Comparative aquatic toxicology of aromatic hydrocarbons.
Fundamental and applied toxicology 3: 353 - 358. |
| 1589 | Lewis, R.J. & Sweet, D.V. 1984.
Registry of toxic effects of
chemical substances.
National Institute for Occupational Safety
and Health.
No. 83-107-4. |
| 967 | Millemann, R.E., Birge, W.J., Black, J.A., Cushman, R.M.,
McCarthy, J.F. & Stewart, A.J. 1984.
Comparative acute
toxicity to aquatic organisms of coal-derived synthetic fuels.
Trans.
Amer.
Fish.
Soc. 113: 74- 85. |
| 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.
|
| 3104 | Sangster, J. 1989.
Octanol-water partition coefficients of
simple organic compounds.
J.
Phys.
Chem.
Ref.
Data, Vol 18, No.
3: 1111 - 1229. |
| 1743 | Schafer , E.W.Jr., Bowles, W.A.Jr., Hurlbut, J. 1983.
The acute
oral toxicity, repellency and hazard potential of 993 chemicals to
one or more species of wild and domestic birds.
Arch.
Environ.
Contam.
Toxicol. 12: 355 - 382. |
