Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.78 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
1.9 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.078 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
1.9 mg/L

STP

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

Sediment (freshwater)

Hazard assessment conclusion:
insufficient hazard data available (further information necessary)

Sediment (marine water)

Hazard assessment conclusion:
insufficient hazard data available (further information necessary)

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
insufficient hazard data available (further information necessary)

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

The available data for PNEC derivation are:

Algae: ErC50 -72h = 19 mg/L, ErC10-72h = 7.8 mg/L

Invertebrates (daphnia): EC50 -48h > 100 mg/L, NOECrepro-21d = 47 mg/L

Fish: LC50 -96h > 100 mg/L

Amphibian larvae (Xenopus): LC50 -12d > 50 mg/L, NOECgrowth-12d = 10 mg/L, no genotoxicity

Bacteria EC50 -3h > 5000 mg/L, NOEC = 500 mg/L

Conclusion on classification

Biodegradation is not a paramenter of concern for an inorganic substance but there is ground to consider carbon nanotubes as not-rapidly degradable. Therefore classification according to Commission Regulation no 286/2011 will be considered according to table 4.1.0. (b) (i). Given that the lowest chronic value, the ErC10 -72h for algae, is higher than 1 mg/l, no classification as chronic 1 or 2 has to be applied. In addition, given the information available on bioaccumulation: logKow not applicable to inorganic substances, no distribution to tissues of ingested NTCs and consquently no bioaccumulation, there is no ground for classifying the substance through the "safety net" as Aquatic Chronic 4 either.

This MWCNT is not classified as dangerous for the environment.