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Description of key information

The toxicity to aquatic organisms is assessed based on a category approach. The category members are composed of a structurally analogue organic part but different metals that are laked with the organic structure. At environmentally relevant pH values disintegration of the molucule and a release of the metal component is not expected. Therefore an influence of the laked metal part is not expected. Aquatic algae toxicity data are available for different members of the category. Below a full listing of available aquatic toxicity data is given:

Table: overview of aquatic toxicity data available for the category:

Study

Guideline / GLP

Species

Endpoint

Effect value

Category member

Remark

Fish short-term toxicity

OECD 203 / GLP

Danio rerio

96-h LC50

> LoWs

CAS No 7585-41-3

At a loading rate of 100 mg/L

OECD 203 / GLP

Danio rerio

96-h LC50

> LoWs

CAS No 7023-61-2

At a loading rate of 100 mg/L

Daphnia short-term toxicity

OECD 202 / non-GLP

Daphnia magna

48-h EC50

> LoWs

CAS No 5281-04-9

At a loading rate of 100 mg/L

OECD 202 / GLP

Daphnia magna

48-h EC50

> LoWs

CAS 73612-29-0

At a loading rate of 1 mg/L

OECD 202 / GLP

Daphnia magna

48-h EC50

> LoWs

CAS 7585-41-3

At a loading rate of 100 mg/L

OECD 202 / GLP

Daphnia magna

48-h EC50

> LoWs

CAS 7023-61-2

At a loading rate of 100 mg/L

OECD 202 / GLP

Daphnia magna

48-h EC50

> LoWs

CAS 5280-66-0

At a loading rate of 100 mg/L

Alga toxicity

OECD 201 / GLP

Pseudokirchneriella subcapitata

72-h ErC50

72-h NOEC

> LoWs

> LoWs

CAS 73612-29-0

At a loading rate of 2 mg/L

OECD 201 / GLP

Pseudokirchneriella subcapitata

72-h ErC50

72-h ErC10

> LoWs

> LoWs

CAS 7023-61-2

At a loading rate of 100 mg/L

Microorganisms toxicity

OECD 209 / GLP

Activated sludge (domestic)

30-min (EC20) NOEC

≥1000 mg/L

CAS 7585-41-3

 

OECD 209 / GLP

Activated sludge (domestic)

3-h (EC15) NOEC

≥100 mg/L

CAS 7023-61-2

 

LoWs: Limit of water solubility

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