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EC number: 260-330-8 | CAS number: 56677-60-2
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Parent compound tetradecyl chloride: No data available.
Hydrolysis product tetradecanol: Not harmful to aquatic algae (no mortality at maximum water solubility)
Hydrolysis product HCL: Acutely very toxic for aquatic algae (pH-dependent).
Key value for chemical safety assessment
Additional information
Parent compound tetradecyl chloroformate:
There are no data available regarding the toxic effect of the parent compound to algae. Dissolved tetradecyl chloroformate (CAS 56677 -60 -2) rapidly hydrolyse to tetradecanol (CAS 112 -72 -1), CO2 (CAS 124 -38 -9) and HCL (CAS 7647 -01 -0). Therefore read across was made to the hydrolysis product tetradecanol.
Tetradecanol:
The alcohol was tested on Desmodesmus supspicatus (reported as Scenedesmus subspicatus) according to German Industrial Standard DIN 38412, part 9. The study show, that the observed ErL50 values is greater than the limit of solubility (Henkel KGaA, 1992). Hence, tetradecanol is not harmful to algae up to its maximum water solubility.
- tetradecanol: 96 -h LC50> 10 mg/L (water solubility: 0.19 mg/L); (Henkel KGaA, 1992)
As reported in the SIAR for Long Chain Alcohols (OECD, 2006), the toxicity of alcohols increases from an ErC50 of 80 mg/L for C6 to 0.62 mg/L for C12. The C14 and C16 alcohols were not toxic to algae. These results indicate a toxicity cut-off at C14 and above.
Hydrolysis producthydrochloric acid (HCl):
The hydrolysis product hydrochloric acid (HCl) was tested in an algae growth inhibition test according to OECD 201 with Pseudokirchneriella subcapitata. The 72-h ErC50 was 0.492 mg/L (acid equivalent to pH 5.3), the 72 -h NOEC was 0.097 (acid equivalent to pH 6; OECD, 2002).
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