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EC number: 239-594-3
CAS number: 15546-11-9
The appearance was reported as an extremely pale yellow, slightly viscous liquid.
Melting point/freezing point
The melting point was < 50 °C.
No boiling point was observed, decomposition occurred at > 230 °C.
The relative density of di-n-butyltin-bis(methylmaleinate) was 1.38 at 20 ± 0.5 °C
Particle size distribution (Granulometry)
Data waiver written
The vapour pressure of the test item was determined to be 0.50 Pa at 25°C. A slight, but gradual drop in vapour pressure was then observed on repeated temperature cycling of the test item over the range 25 to 35°C, with individual values in the range 0.37 to 0.26 Pa for thirteen runs. Such vapour pressure characteristics are indicative of the gradual reduction of the more volatile fraction of the test item, likely to exist as impurities. To provide representative data for risk assessment on accidental release of the test item, the initial, highest value obtained was taken as the definitive result.
The flashpoint is 127 °C.
The test item was determined not to have an auto-ignition temperature of below 400°C.
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