Substance Identity
CAS Number 75-38-7
Chemical Name Ethene, 1,1-difluoro-
Type of substance Organic
SMILES FC(F)=C
Moiety of concern organic
Categorization Results

Meets Government of Canada Categorization Criteria? No
Meets Human Health Categorization Criteria? No
Meets Environmental Criteria for Categorization? No
Persistent (P)? Yes
Rational for P Experiment
Bioaccumulative (B)? No
Rational for B QSAR
Inherently Toxic to Aquatic Organisms (iT)? No
Rational for iT QSAR
DSL Quantity range (tonnes/year) 0 to 1T

Ecological data supporting decisions

Underlying data regarding persistence

Media of concern leading to Categorization Air
Experimental Biodegradation half-life (days) Not Available
Predicted Ultimate degradation half-life (days) 15
MITI probability of biodegradation 0.0007
Experimental Ozone Reaction half-life (days) 60.3070175438596
Reference (ozone reaction) ATKINSON,R.; KINETICS AND MECHANISMS OF THE GAS-PHASE REACTIONS OF THE HYDROXYL RADICAL WITH ORGANIC COMPOUNDS.; JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA. MONOGRAPH NO. 1.; 1989
Robust Study Summary (ozone reaction)
75387.doc
EPI Predicted Ozone reaction half-life (days) 40.93
Experimental Atmospheric Oxidation half-life (days) 5.09259259259259
Reference (oxidation) ATKINSON,R.; KINETICS AND MECHANISMS OF THE GAS-PHASE REACTIONS OF THE HYDROXYL RADICAL WITH ORGANIC COMPOUNDS.; JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA. MONOGRAPH NO. 1.; 1989
EPI Predicted Atmospheric Oxidation half-life (days) 4.719

Underlying data regarding Bioaccumulation

Empirical Log Kow 1.24
Log Kow predicted by KowWin 1.24
Log BAF T2MTL predicted by Gobas 0.308420298634305
Log BCF 5% T2LTL predicted by Gobas 0.263688968256856
Log BCF Max predicted by OASIS 1.34365247824258
Log BCF predicted by BCFWIN 0.255

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 12.54934
Toxicity to fish (LC50 in mg/l) as predicted by Ecosar v0.99g 245.933
Toxicity to fish (LC50 in mg/l) as predicted by Oasis Forecast M v1.10 663.1144
Toxicity to fish (LC50 in mg/l) as predicted by Aster 290.175031
Toxicity to fish (LC50 in mg/l) as predicted by PNN 12.54934
Toxicity to daphnia (EC50 in mg/l) as predicted by Topkat v6.1 27.8
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 122.016
Chronic toxicity to daphnia or algae (EC50 in mg/l) as predicted by Ecosar v0.99g 9.196
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 2.46E+002

Human Health data supporting decisions
Underlying data regarding potential for exposure

LPE/IPE/GPE Lowest Potential for Exposure (HC Simple Exposure Tool)

Underlying data regarding Previous Assessments

Underlying data regarding Simple Hazard Assessment


Underlying data regarding Complex Hazard Assessment