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EC number: 200-772-0
CAS number: 72-17-3
Table 1. Number
of mobile animals (Daphnia magna) at one concentrations of Sodium
L(-) lactate and after several exposure times.
Nominal concentration of test substance (mg/L)
of all test animals, visually assessed, normal (=good).
of all test animals, visually assessed, equal to that of the control
The acute toxicity of sodium-L-lactate to
the freshwater crustaceanDaphnia magnawas determined as
decribed in the OECD guideline no. 202 and according to the OECD
principles of Good Laboratory Practice.
The test was carried out with 8 × 5 daphnias
(eightfold test solutions) for the test concentration and control, and
the test solutions were not replaced.
The exposure duration was 48 hours.
The nominal concentrations tested was 10,000
mg/L based on the test material, which equals 6000 mg/L sodium-L-lactate.
At the start of the test the test substance
appeared to be completely dissolved (visually assessed).
The actual concentration of sodium-L-lactate
in the test solutions was determined at the start and end of the test by
measurement of the sodium concentration (ICP-AES). They were between 104
and 91 % of the nominal concentrations (average 97.5 %).
No effects of sodium-L-lactate on mobility
or condition of the daphnids were observed.
The results of the test were (in nominal
48-h NOEC (mobility = 48-h EC0):
6000 mg sodium-L-lactate/L
48-h NOEC (condition): 6000 mg sodium
adverse effects of Sodium (S)-lactate were observed in a short-term
toxicity test with the fresh-water crustacean Daphnia magna at
concentrations up to 6000 mg/L. Based on the absence of effects by
Sodium (S)-lactate at concentrations 60 times the limit concentration
(100 mg/L) it can safely be concluded that no effects occur at the limit
concentration either. Therefore, no hazard has been identified.
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