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EC number: 200-463-0 | CAS number: 60-23-1
Samples taken from all test groups were analysed. The TOC concentrations measured increased with increasing loading rate, indicating an appropriate preparation of the test solutions. The TOC content of the test item was calculated to be 31.14% based on the provided molecular formula. The initial TOC concentrations in the four highest test concentrations corresponded to 106 -116% of the nominal TOC concentrations as based on the applied loading rates. The TOC concentrations measured in the two lowest test concentrations were at 129 -159% of the nominal TOC concentrations. The measured concentrations were close to the limit of quantification of 1.0 mg TOC/L and may thus not be as reliable as the higher concentrations. At the end of the test, the measured TOC concentrations had remained stable, i.e. were at 105 -112% of the initial concentrations.
Since TOC-analysis is a non-specific method, the effect parameters were determined based on loading rates.
Table 1: Number of Introduced Daphnids and Incidence of Immobility in the Range-Finding Test
Mercaptamine;% SS prep. at 100 mg/L
#Microscopic observation revealed no test item attached to the daphnids,
Table 2: Number of Introduced Daphnids and Incidence of Immobility in the Final Test
Mercaptamine; WAF loading rate (mg t.i./L)
#Microscopic observation revealed no test item attached to the daphnids. * Dissolved oxygen: 8.7 mg/L.
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