Registration Dossier
Registration Dossier
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EC number: 215-960-8 | CAS number: 1461-25-2
Phototransformation in air
Administrative data
Link to relevant study record(s)
- Endpoint:
- phototransformation in air
- Type of information:
- not specified
- Remarks:
- review handbook
- Adequacy of study:
- supporting study
- Study period:
- No information
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
- Remarks:
- No information provided about study or methods.
- Qualifier:
- no guideline available
- Principles of method if other than guideline:
- Not applicable. Information provided as short abstracts.
- GLP compliance:
- not specified
- Light source:
- not specified
- Validity criteria fulfilled:
- not applicable
- Conclusions:
- In the toxicological profile for tin and tin compounds, little information was available on the phototransformation of tetrabutyltin in air. However, a few general statements were located that support that releases of organotin compounds to air are not significant due to low vapor pressures and rapid photodegradation (Blunden et al. 1984, WHO 1990, and Fent 1996).
- Executive summary:
In the toxicological profile for tin and tin compounds, little information was available on the phototransformation of tetrabutyltin in air. However, a few general statements were located that support that releases of organotin compounds to air are not significant due to low vapor pressures and rapid photodegradation (Blunden et al. 1984, WHO 1990, and Fent 1996).
Organotin compounds are degraded by breaking the tin-carbon bond. This can occur in the environment by ultraviolet (UV) irradiation, or biological or chemical cleavage (Blunden et al. 1984). The rate of photodegradation and biodegradation in water is dependent upon the environmental conditions. In sediment, generally organotins are persistent. In aquatic organisms, organotin compounds can be significantly bioconcentrated. Cleavage by hydrolysis of the tin-carbon bond by hydrolysis is not a significant contributor to the environmental fate process under environmental conditions (WHO 1990).
Releases of organotin compounds to air are not significant due to their low vapor pressures and rapid photodegradation (Blunden et al. 1984; Fent 1996). Degradation of organotin compounds involves breaking the tin-carbon bond and can occur in the environment by ultraviolet (UV) irradiation, or biological or chemical cleavage (Blunden et al. 1984).
Reference
In the toxicological profile for tin and tin compounds, little information was available on the phototransformation of tetrabutyltin in air. However, a few general statements were located that support that releases of organotin compounds to air are not significant due to low vapor pressures and rapid photodegradation (Blunden et al. 1984, WHO 1990, and Fent 1996).
Organotin compounds are degraded by breaking the tin-carbon bond. This can occur in the environment by ultraviolet (UV) irradiation, or biological or chemical cleavage (Blunden et al. 1984). The rate of photodegradation and biodegradation in water is dependent upon the environmental conditions. In sediment, generally organotins are persistent. In aquatic organisms, organotin compounds can be significantly bioconcentrated. Cleavage by hydrolysis of the tin-carbon bond by hydrolysis is not a significant contributor to the environmental fate process under environmental conditions (WHO 1990).
Releases of organotin compounds to air are not significant due to their low vapor pressures and rapid photodegradation (Blunden et al. 1984; Fent 1996). Degradation of organotin compounds involves breaking the tin-carbon bond and can occur in the environment by ultraviolet (UV) irradiation, or biological or chemical cleavage (Blunden et al. 1984).
Description of key information
In the toxicological profile for tin and tin compounds, little information was available on the phototransformation of tetrabutyltin in air. However, a few general statements were located that support that releases of organotin compounds to air are not significant due to low vapor pressures and rapid photodegradation (Blunden et al. 1984, WHO 1990, and Fent 1996).
Key value for chemical safety assessment
Additional information
In the toxicological profile for tin and tin compounds, little information was available on the phototransformation of tetrabutyltin in air. However, a few general statements were located that support that releases of organotin compounds to air are not significant due to low vapor pressures and rapid photodegradation (Blunden et al. 1984, WHO 1990, and Fent 1996).
Organotin compounds are degraded by breaking the tin-carbon bond. This can occur in the environment by ultraviolet (UV) irradiation, or biological or chemical cleavage (Blunden et al. 1984). The rate of photodegradation and biodegradation in water is dependent upon the environmental conditions. In sediment, generally organotins are persistent. In aquatic organisms, organotin compounds can be significantly bioconcentrated. Cleavage by hydrolysis of the tin-carbon bond by hydrolysis is not a significant contributor to the environmental fate process under environmental conditions (WHO 1990).
Releases of organotin compounds to air are not significant due to their low vapor pressures and rapid photodegradation (Blunden et al. 1984; Fent 1996).
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