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EC number: 203-815-1
CAS number: 110-91-8
Short-term toxicity to fish:
With high probability not harmful to fish.
LC50 (96 h): > 100 mg/L (Oryzias latipes, semi-static conditions, analytically verified concentrations)
Long-term toxicity to fish:
No experimental data available.
NOEC (ACR method): > 1 mg/L
Short-term toxicity to aquatic invertebrates:
Morpholine is acutely harmful to aquatic invertebrates.
EC50 (48 h): 45 mg/L (Daphnia magna, OECD 202, static)
Long-term toxicity to aquatic invertebrates:
EC10 (21 d): 8.134 mg/L (Daphnia magna, OECD 211, semi-static)
Growth inihibition to aquatic algae:
Morpholine is acutely toxic to aquatic algae.
ErC50 (72 h): 65 mg/L (Pseudokirchneriella subcapitata, OECD 201, static, analytically verified concentrations)
ErC10 (72 h): 31 mg/L (Pseudokirchneriella subcapitata, OECD 201, static, analytically verified concentrations)
Toxicity to microorganisms:
The inhibition of the degradation activity of activated sludge is not anticipated when introduced to biological treatment plants in appropriate low concentrations.
EC20 (30 min): > 1000 mg/L (OECD 209; one test with domestic activated sludge and two tests with industrial activated sludge)
EC3 (16 h): 310 mg/L (Pseudomonas putida, growth inhibition test)
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