Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
0.47 µg/L
Assessment factor:
100
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.47 µg/L
Assessment factor:
100
Extrapolation method:
assessment factor

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
0.22 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
2.76 µg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
2.76 µg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
0.22 µg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Justification for PNEC sediment derivation


Freshwater
PNECsediment= (0.783 + 0.0217× Koc) × PNECwater
(Guidance on information requirements and chemical assessment, Part B: Hazard Assessment, B.7.2.4.)

PNECwater= 0.47µg/dm3;
Koc= 24
PNECsediment freshwater= (0.783 + 0.0217× 24) × 0.47 = 0.6 µg/kg x4.6=2.76  µg/kg sed dw
M

arinewater

PNECsediment= (0.783 + 0.0217× Koc) × PNECwater marine

(Guidance on information requirements and chemical assessment, Part B: Hazard Assessment, B.7.2.4.)

 PNECwater= 0.47µg/dm3;

Koc= 24

PNECsediment freshwater= (0.783 + 0.0217× 24) × 0.47 = 0.6 µg/kg x4.6=2.76  µg/kg sed dw

 
Justification for PNEC soil derivation
PNECsoil= (0,174 + 0.0104× Koc) × PNECwater
(Guidance on information requirements and chemical assessment, Part B: Hazard Assessment, B.7.2.4.)

PNECwater = 0.47µg/dm3;
Koc= 24
PNECsoil= (0.174 + 0.0104× 24) × 0.47 = 0.199 µg/kg x 1.13= 0.22 µg/kg sediment dw

 

Justification for PNEC secondary poisoning derivation

No data available.

The substance is readily biodegradable.

The substance does not bio-accumulate.

 

Sodium sodium O-isopentyl trihiocarbonate does not fulfill the bioaccumulation criterion, the bio-concentration factor is much lower than 2000 (REACH Regulation Annex XIII)

Conclusion on classification

The results from the aquatic toxicity studies are as follows:

LC50 for freshwater fish: 0.01 mg/L

Daphnia magna:EC10 (21 d): 0.047 mg/L test mat. (nominal) based on: reproduction test

EC10/LC10 or NOEC for freshwater plants: 1.9 mg/L

EC50/LC50 for freshwater algae: 0.325 mg/L

EC50 (3 h): 220.4 mg/L based on: respiration rate

OECD Guideline 209 (Activated Sludge, Respiration Inhibition Test)