Registration Dossier
Registration Dossier
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EC number: 932-349-8 | CAS number: 8006-64-2
Endpoint summary
Administrative data
Description of key information
Solubility of Gum turpentine oil in water
The water solubility of Gum turpentine oil (UVCB product) was tested using the flask method in accordance with OECD guideline 105 and EU method A.6. As justified in the Water solubility Endpoint Summary, the solubility of Gum turpentine oil at a loading rate of 0.1 g/L is expected to be lower than 0.0255 g/L (solubility at 1 g/L).
This value will be considered for the exposure assessment.
Poorly water-soluble substances are substances with a limit of water solubility below 100 mg/L according to OECD Guidance No 23 (2000) on aquatic toxicity testing of difficult substances and mixtures. Therefore, Gum turpentine meets the definition of poorly water soluble substances and has to be considered as a "difficult substance to test".
Available ecotoxicological information
Short-term fish toxicity:
A fish study was conducted with Crude sulphate turpentine containing 0.02% of sulfur according to the OECD guideline semi-static conditions.
The fish were exposed to 0(Control), 2.5, 5.0, 10, 25 and 50 mg/L. The test was conducted with the Water accommodated fractions (WAF). The results are based on the nominal loading rates.
A 96-h LL50 of 29.0 mg/L and NOELR of 5.0 mg/L have been determined for the effect of the test substance on mortality ofDanio rerio.
Short-term toxicity to aquatic invertebrates:
A study was conducted onDaphnia magnawith Crude sulphate turpentine containing 0.02% of sulfur according to the OECD guideline static conditions.
Daphnia magnawere exposed to 0 (Control), 2.5, 10 and 50 mg/L. The test was conducted with the Water accommodated fractions (WAF).The results are based on the nominal loading rates.
A 48-h EL50 value of 8.8 mg/L and NOELR of 2.5 mg/L have been determined for the effects of a sample of Crude sulfate turpentine on mobility of Daphnia magna.
Toxicity to algae and cyanobacteria:
One algae study was conducted on freshwater algaeDesmodesmus subspicatuswith Crude sulphate turpentine containing 0.02% of sulfur according to the OECD guideline 201.
The algae were exposed to 0(Control), 0.5, 10, 25, 50 and 100 mg/L. The test was conducted with the Water accommodated fractions (WAF). The results are based on the nominal loading rates.
A 72-h EL50 of 17.1 mg/L and NOELR of 10 mg/L have been determined for the effect of the test substance on growth rate ofDesmodesmus subspicatus.
Additional information
Toxicity to microorganisms:
A study was conducted with Gum turpentine oil on activated sludge according to the guideline OECD 209 at nominal concentrations until 1112.3 mg/L. The EC50 and EC10values based on respiration rate inhibition were 736 and 10 mg/L, respectively.
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