Registration Dossier
Registration Dossier
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EC number: 212-414-0 | CAS number: 814-94-8
Endpoint summary
Administrative data
Description of key information
Additional information
Biodegradation in water
No. of studies reviewed for Biodegradation in water:screening tests from reliable sources having Klimisch rating 2.
The summary of the results are presented below
Sr.No | Endpoint | Percentage Degradation | Half - Life | Parameter | Sources |
1 | Ready biodegradability | 50% degradation | 37.5 days | Half-life | Predicted data from PBT profiler |
2 | Ready biodegradability | 90.26 % degradation | 15 days | O2 consumption | Predicted data from QSAR |
By applying weight of evidence approach to the target chemical tin(II) oxalate it was found that the degradation percentage of tin(II) oxalate in water medium is 50 to 90.26 %.This result in ready biodegradability of the chemical.
Biodegradation in water and sediment
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.
| Mass Amount (percent) | Half-Life (hr) | Emissions (kg/hr) |
Water | 44.4 | 900 | 1000 |
Sediment | 0.0872 | 8.1e+003 | 0 |
| Fugacity (atm) | Reaction (kg/hr) | Advection (percent) | Reaction (percent) | Advection (percent) |
Water | 1.27e-009 | 578 | 750 | 19.3 | 25 |
Sediment | 1.21e-009 | 0.126 | 0.0295 | 0.00421 | 0.000984 |
Biodegradation in soil
The EPI Suite has estimated that tin(II) oxalate is expected to be found predominantly in soil and its persistence estimate is based on its transformation in this medium. Its half-life in soil, 75 days (1800 hrs). This dose not exceeds the threshold of 120 days as per Annex XIII of REACH. Therefore, tin(II) oxalate is estimated to be not persistent in the soil environment.
Fugacity Model by EPI Suite estimation database
| Mass Amount (percent) | Half-Life (hr) | Emissions (kg/hr) |
Soil | 47.5 | 1800 | 1000 |
| Fugacity (atm) | Reaction (kg/hr) | Advection (percent) | Reaction (percent) | Advection (percent) |
Soil | 4.64e-008 | 309 | 0 | 10.3 | 0 |
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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