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EC number: 468-710-7 | CAS number: 754-12-1
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
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- Additional physico-chemical information
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- Endpoint summary
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- Environmental data
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- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
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- Sediment toxicity
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- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
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- Specific investigations
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- Additional toxicological data

Phototransformation in air
Some information in this page has been claimed confidential.
Administrative data
- Endpoint:
- phototransformation in air
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
Data source
Reference
- Reference Type:
- publication
- Title:
- Unnamed
- Year:
- 2 008
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- The products of Cl and OH radical initiated oxidation of CF3CF=CH2 were studied in a 700 Torr of N2/O2 diluent at 296 +/- 1K.
- GLP compliance:
- not specified
Test material
- Details on test material:
- >99.9%
purity >99.9%
sample supplied by Honeywell
Constituent 1
Study design
- Light source:
- other: fluorescent backlamps
Results and discussion
% Degradation
- Key result
- % Degr.:
- ca. 100
- Sampling time:
- 10 d
Any other information on results incl. tables
The OH initiated oxidation of CF3CF=CH2 gives CF3C(O)F and HCHO in almost quantitative yields. CF3C(O)F is removed from the atmosphere via hydrolysis that occurs at a time scale of about 10 days to give CF3C(O)OH, just like 134a (CF3CH2F) does. The available data suggest that while CF3C(O)OH is not a natural component of the freshwater environment, it is a natural component of the background oceanic environment, and any additional burden associated with CF3CF=CH2 oxidation will be of negligible environmental significance.
Similarly HC(O)H decomposes to H2O and CO, the latter oxidizing to CO2 in the atmosphere.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not specified
- Conclusions:
- The atmospheric decomposition of CF3CF=CH2 will have negligible environmental impact.
- Executive summary:
The atmospheric lifetime of CF3CF=CH2, dictated by its reaction with OH radicals, is approximately 11 days. The major atmospheric oxidation product of CF3CF=CH2 is CF3C(O)F. The atmospheric fate of CF3C(O)F is hydrolysis which occurs. We show here that is the major atmospheric oxidation product of CF3CF=CH2. The atmospheric fate of CF3C(O)F is hydrolysis which occurs on a time scale of approximately 10 days to give CF3C(O)OH. While CF3C(O)OH is not a natural component of the freshwater environment, it is a natural component of the background oceanic environment, and any additional burden associated with CF3CF=CH2 oxidation will be of negligible environmental significance. We conclude that the products of the atmospheric oxidation of CF3CF=CH2 have negligible environmental impact.
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