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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 Sodium isobutyl xanthate it reacts with water to form the others substances:  alcohol, sodium 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. Sodium isobutyl 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 sodium isobutyl xanthate.
The biodegradation of Isobutyl Alcohol was >74 % after 28 days of exposure, therefore Isobutyl Alcohol is readily biodegradable. Sodium isobutyl xanthate readily decomposes to Isobutyl Alcohol, especially in the presence of moisture/water. Isobutyl Alcohol is both reagents used in the manufacture, as well as decomposition products.
Therefore, the Biodegradation in water of Isobutyl Alcohol need to be considered in the assessment of sodium isobutyl xanthate.
These results suggest that sodium isobutyl 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 Sodium isobutyl xanthate it reacts with water to form the others substances: alcohol, sodium 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. Sodium isobutyl 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 sodium isobutyl xanthate.

The biodegradation of Isobutyl Alcohol was >74 % after 28 days of exposure, therefore Isobutyl Alcohol is readily biodegradable. Sodium isobutyl xanthate readily decomposes to Isobutyl Alcohol, especially in the presence of moisture/water. Isobutyl Alcohol is both reagents used in the manufacture, as well as decomposition products.

Therefore, the Biodegradation in water of Isobutyl Alcohol need to be considered in the assessment of sodium isobutyl xanthate.

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