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REACH

Triboron trimethyl hexaoxide

EC number: 203-016-8 | CAS number: 102-24-9

Life Cycle description
Uses advised against

Ecotoxicological information

Ecotoxicological Summary

Administrative data

Hazard for aquatic organisms

Hazard for air

Hazard for terrestrial organisms

Hazard for predators

Additional information

Conclusion on classification

Triboron trimethyl hexaoxide does not need to be classified for the environment. No ecotoxicological information is available for triboron trimethyl hexaoxide. The substance is known to rapidly hydrolyse in contact with water to form methanol (CAS 67-56-1) and boric acid (CAS 10043-35-3) (Steinberg and Hunter, 1957). Therefore, the environmental classification for the parent substance is based on the worst case environmental classification of both hydrolysis products. Methanol is qualified as readily biodegradable. For methanol short-term aquatic toxicity data are available for three trophic levels with acute effect concentrations of ≥ 15400 mg/L. No adequate long-term data are available. Based on this information, methanol needs not be classified for the environment according to regulation EC/1272/2008 (CLP) or according to directive 67/548/EEC (DSD). Boric acid is qualified as not readily biodegradable. For boric acid short-term and long-term aquatic toxicity data are available for three trophic levels. Acute effect concentrations were found to be ≥ 52.4 mg/L, chronic effect values were found to be ≥3.5 mg/L. Based on this information, boric acid needs not be classified for the environment according to regulation EC/1272/2008 (CLP) or according to directive 67/548/EEC (DSD).

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