Registration Dossier

Diss Factsheets

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
1.05 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Marine water

Hazard assessment conclusion:
no data available: testing technically not feasible

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
133 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Sediment (freshwater)

Hazard assessment conclusion:
no data available: testing technically not feasible

Sediment (marine water)

Hazard assessment conclusion:
no data available: testing technically not feasible

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
no data available: testing technically not feasible

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no data available: testing technically not feasible

Additional information

Tungsten hexafuoride is hydrolizing instantly in contact with moisture/water. Hence testing is not feasible. Hydrolization products are hydrofluoric acid and tungsten oxides. While the latter is not considered as dangerous, hydrofluoric acid and its sodium salt are taken as surrogate.

Conclusion on classification

Tungsten hexafluoride is hydrolizing instantly in contact with moisture/water. Hence testing is not feasible. Hydrolization products are hydrofluoric acid and tungsten oxides. While the latter is not considered as dangerous, hydrofluoric acid and its sodium salt are taken as surrogate.