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EC number: 205-759-3 | CAS number: 150-39-0
LC50: 156 mg/kg dry weight EDTA. Toxicity of HEDTA on soil macroorganisms is considered likely to be low based on read-across to the EDTA study. Expressed as HEDTA-H3 the Ec50 would be 148 mg/kg soil dw
There was no data available regarding toxicity of HEDTA to soil macroorganisms except arthropods. Read-across to studies on a structural analogue of the substanc, EDTA, indicates low toxicity to earthworms. The studies were based on iron phosphate based molluscicides which included EDTA. A 14 day LC50 of EDTA to earthworms was estimated to be 156 mg/kg dry weight soil.
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