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EC number: 212-414-0
CAS number: 814-94-8
Half life period of tin(II) oxalate in water is observed to be 900hrs (37.5 d) while in sediment it is 8100 hrs (337.5 d).Based on these half life values of tin(II) oxalate, it is concluded that the chemical is readily biodegradable in water where as it is non biodegradable in sediment. However, since there is no diffusion of the substance in the sediment as evident from the reported data (0.0872 % in sediment) and hence persistence in the sediment compartment is not likely to be critical.
Based on the Level III Fugacity Model,the half life period of the tin(II) oxalate was estimated. The half life period of tin (II) oxalate in water is 900hrs (37.5 d) therefore it is considered that the substance will qualify as not persistent as the half life does not exceed the threshold of 60 days. So, it can be confirmed that the substance is readily biodegradable in water medium where as in sediment the half life is 8100 hrs (337.5 d).
Based on this value, it can be inferred that the substance is persistent in sediment medium and is not readily biodegradable probably due to the anaerobic conditions existing in most sediments. However, it can be observed that tin(II) oxalate does not diffuse in the sediment medium since it's percentage diffusion in the sediment medium is reported to be 0.0872 % and hence persistence in the sediment compartment is not likely to be critical.
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