Potassium chloride

Endpoint summary

Additional information

6.1.1 Short-term toxixity aquatic – fish

Short-term toxicity of potassium chloride to fish (Pimephales promelas) is given as 96 hour-LC50 = 880 mg/L.

6.1.2 Long-term toxicity to fish

Data waiving: According to REACH regulation, Annex IX, column 2, long-term toxicity testing does not need to be conducted as chemical safety assessment indicates no need to further investigate effects on fish.

6.1.3 Short-term toxicity to aquatic invertebrates

Short-term toxicity to aquatic invertebrates (Daphnia magna) is given as 48 hour-EC50 = 660 mg/L.

6.1.4 Long-term toxicity to aquatic invertebrates

Data waiving: According to REACH regulation, Annex IX, column 2, long-term toxicity testing does not need to be conducted as chemical safety assessment indicates no need to further investigate effects on aquatic invertebrates. Therefore, it is also not subject to further testing according to Annex X.

6.1.5 Toxicity to aquatic algae and cyanobacteria

Toxicity to aquatic algae and cyanobacteria was determined with Scenedesmus subspicatus according to OECD 201/EU Method C.3 and was determined as 72 h-EC50 > 100 mg/L and a NOEC >= 100 mg/L, both derived from growth rate.

6.1.7 Toxicity to microorganisms

Toxicity to microorganisms: 3 h-EC50 > 1000 mg/L.

6.2 Sediment toxicity

Data waiving: In accordance with REACH Annex IX, column 1, the study does not need to be conducted as the substance is an inorganic salts that has no high potential for adsorption to sediment. Furthermore, the chemcial safety assessment does not indicate the need to further investigate the substance. Thus, it is also not subject to further testing according to Annex X.

6.3.1 Toxicity to soil macroorganisms except arthopods

Data waiving: Potassium chloride is ubiquitous in the environment and occurs, e.g., in minerals and soils. The substance is highly water soluble and does not bioaccumulate in terrestrial organisms. Potassium and chloride as the two ion constituents of the substance are both important nutrients to terrestrial organisms. Therefore, testing of effects to terrestrial organisms is not necessary.

6.3.2 Toxicity to terrestrial arthopods

Data waiving: Potassium chloride is ubiquitous in the environment and occurs in minerals and soils. The substance is highly water soluble and does not bioaccumulate in terrestrial organisms. Potassium and chloride as the two ion constituents of the substance are both important nutrients to terrestrial organisms. Therefore, testing of effects to terrestrial organisms is not necessary.

6.3.2 Toxicity to terrestrial plants

Data waiving: Potassium chloride is ubiquitous in the environment and occurs in minerals and soils. The substance is highly water soluble and does not bioaccumulate in terrestrial organisms. Potassium and chloride as the two ion constituents of the substance are both important nutrients to terrestrial organisms. Therefore, testing of effects to terrestrial organisms is not necessary.

6.3.2 Toxicity to soil microorganisms

Data waiving: Potassium chloride is ubiquitous in the environment and occurs in minerals and soils. The substance is highly water soluble and does not bioaccumulate in terrestrial organisms. Potassium and chloride as the two ion constituents of the substance are both important nutrients to terrestrial organisms. Therefore, testing of effects to terrestrial organisms is not necessary.

6.3.2 Toxicity to birds

Data waiving: Potassium chloride is ubiquitous in the environment and occurs in minerals and soils. The substance is highly water soluble and does not bioaccumulate in terrestrial organisms. Potassium and chloride as the two ion constituents of the substance are both important nutrients to terrestrial organisms. Therefore, testing of effects to terrestrial organisms is not necessary.