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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

When water is added to Potassium ethyl xanthate it reacts with water to form the others substances: alcohol, potassium carbonate, trithiocarbonate and carbon disulphide.
Carbon disulphide (CAS number 75–15–0) it is the major decomposition product, which is liquid and have to be considered.
The biodegradation of CS2 was >80 % after 28 days of exposure, therefore CS2 is readily biodegradable. Potassium ethyl xanthate readily decomposes to carbon disulphide, especially in the presence of moisture/water.
Therefore, the Biodegradation in water of carbon disulphide (CS2) need to be considered in the assessment of potassium ethyl xanthate.
The biodegradation of Ethyl Alcohol was >60 % after 10 days of exposure, therefore Ethyl Alcohol is readily biodegradable. Potassium ethyl xanthate readily decomposes to ethyl Alcohol, especially in the presence of moisture/water. Ethyl Alcohol is both reagents used in the manufacture, as well as decomposition products.
Therefore, the Biodegradation in water of Ethyl Alcohol need to be considered in the assessment of potassium ethyl xanthate. These results suggest that potassium ethyl xanthate will be readily biodegradable and it is not expected to persist in the environment.
These results suggest that potassium ethyl xanthate will be readily biodegradable and it is not expected to persist in the environment.

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

When water is added to Potassium ethyl xanthate it reacts with water to form the others substances: alcohol, potassium carbonate, trithiocarbonate and carbon disulphide.

Carbon disulphide (CAS number 75–15–0) it is the major decomposition product, which is liquid and have to be considered.

The biodegradation of CS2 was >80 % after 28 days of exposure, therefore CS2 is readily biodegradable. Potassium ethyl xanthate readily decomposes to carbon disulphide, especially in the presence of moisture/water.

Therefore, the Biodegradation in water of carbon disulphide (CS2) need to be considered in the assessment of potassium ethyl xanthate.

The biodegradation of Ethyl Alcohol was >60 % after 10 days of exposure, therefore Ethyl Alcohol is readily biodegradable. Potassium ethyl xanthate readily decomposes to ethyl Alcohol, especially in the presence of moisture/water. Ethyl Alcohol is both reagents used in the manufacture, as well as decomposition products.

Therefore, the Biodegradation in water of Ethyl Alcohol need to be considered in the assessment of potassium ethyl xanthate. These results suggest that potassium ethyl xanthate will be readily biodegradable and it is not expected to persist in the environment.

These results suggest that potassium ethyl xanthate will be readily biodegradable and it is not expected to persist in the environment.