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| Environment HFC-43-10mee |
HFC-43-10-mee (1,1,1,2,2,3,4,5,5,5-decafluoropentane)
Ecological properties
Mobility
Air, Henry's law : 15 kPa.m³/mol
constant (H) ca Result: considerable volatility
Conditions: 20°C /calculated value
Water, evaporation : t ½ = 3 hour(s)
Conditions: calculated value from mathematical
model/river
Soil/sediments, adsorption : log KOC from 1.6 - 2
Conditions: calculated value
Abiotic degradation
Air, indirect photo-oxidation : t ½ ca. 15 year(s)
Conditions : Sensitizer: OH radicals
Degradation's products :Carbon dioxide / hydrofluoric
Air, photolysis : ODP = 0
Reference value for CFC 11: ODP = 1
Air, greenhouse effect, GWP : = 1300
Reference value for CO2 for 100 years
Water/soil, hydrolysis : t ½ > 10,000 year(s)
Result: non-significant hydrolysis
Conditions: calculated value
Biotic degradation
Aerobic, test : ready biodegradability / modified STURM
Degradation = 5 %, 28 day(s)
Result: non-readily biodegradable
Potential for bioaccumulation
Bioconcentration : aquatic organisms, BCF = 42
Result: non-bioaccumulable
Conditions: calculated value
Comments : Product is persistent in air
(atmospheric lifetime: 17,1 years)
Product is not significantly hazardous for the aquatic environment as:
· Low toxicity for aquatic organisms
· Considerable volatility
· No bioaccumulation
Source: Safety Data Sheet of DuPont
IPCC, climate change 2001, third assessment report, Cambridge university press, 2001.
Ecotoxicological properties
96 hour LC50, fathead minnows : 27.2 mg/l
96 hour LC50, rainbow trout : 13.9 mg/l
48 hour LC50, Daphnia magna : 11.7 mg/l
Fish, Poecilia reticulata, LC 50, 96 h: 220 mg/l
Crustaceans, Daphnia magna, EC 50, 48 h: 160 mg/l
Source: Safety Data Sheet of DuPont
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