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EC number: 412-180-1 | CAS number: 10221-57-5 1,2-DIETHOXYPROPANE; DIETHOXY-1,2-PROPANE
Endpoint summary
Administrative data
Description of key information
Additional information
Toxicity to fish
The acute toxicity (LC50) of 1, 2 - Diethoxypropane to Rainbow Trout (Oncorhynchus mykiss) was determined over a 96 h period, under semi-static conditions. Ten Rainbow Trout per test concentration plus a control, were exposed to 0 (control), 125, 250, 500, 1000 and 2000 mg/L nominal concentrations. The corresponding mean measured concentrations were 0, 143, 282, 547, 1067 and 2062 mg/L. The 96 h LC50 of 1, 2- Diethoxypropane to Rainbow Trout is greater than 1067 and less than 2062 mg/L under the test conditions. The NOEC, LOEC and LC100 values are 282, 547 and 2062 mg/L, respectively.
Toxicity to acquatic invertebrates
The median effective concentration (EC50) for immobilisation of Daphnia, under static conditions. Twenty Daphnia were tested at each of the following mean measured concentrations of 1, 2 - Diethoxypropane 1624, 864, 429, 221, 112 and 0 mg/L. The results indicate that the 48 h EC50 for immobilisation of Daphnia is greater than 1624 mg/L, under the test conditions of the test. The NOEC and LOEC values are 112 and 221 mg/L, respectively.
Toxicity to algae
The acute toxicity of the test substance diethoxy-1,2-propane in solution was evaluated in the algal strain Scenedesmus subspicatus using a 72 -hour satic test according to OECD guideline (No. 201). Under the experimental conditions, the 72 -hour EC50 of diethoxy-1,2-propane is > 690 mg/L for Scenedesmus subspicatus. The NOEC at 72 hours is ≥ 690 mg/L based on the specific growth rate data.
Toxicity to microorganisms
The effect of the test item diethoxy-1,2 -propane on the respiration of activated sewage sludge was evaluated using a 3 -hour static test according to OECD guideline (No. 209). Under the experimental conditions, the 3 -hour EC50 of the test item is > 1000 mg/L for activated sludge. The test item should be considered as non-toxic for the micro-organisms of a water treatment plant.
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