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EC number: 451-160-7
CAS number: 17913-76-7
2,4,7,9-Tetramethyl-5-Decyne-4,7-Diol was not readily biodegradable under the conditions of the modified Sturm test presently performed. Approximately 5 percent degraded in 28 days.2,4,7,9-Tetramethyl-5-Decyne-4,7-Diol was tested for its ready biodegradability in the carbon dioxide (CO2) evolution test (modified Sturm test) at 36.3 ml per 2 litres, corresponding with 12 mg TOC/l.The Theoretical CO2 production (ThCO2) of 2,4,7,9-Tetramethyl-5-Decyne-4,7-Diol was calculated to be 2.72 mg CO2/mg, corresponding with 2.42 mg CO2/ml.The relative degradation values calculated from the measurements performed during the test period revealed no significant degradation of 2,4,7,9-Tetramethyl-5-Decyne-4,7-Diol. In the toxicity control of 2,4,7,9-Tetramethyl-5-Decyne-4,7-Diol was found to be not inhibitory.Since all acceptability criteria prescribed by the protocol were met, this study was considered to be valid.
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