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EC number: 231-955-3
CAS number: 7782-42-5
The short term toxicity for aquatic invertebrates (daphnids) was determined to be > 100 mg/L for the EC50 and > 100 mg/L for the NOEC, following Testing guidelines OECD 202 as well EU C.2
The results for the LC50 and the NOEC (both > 100 mg/L) are based on the
nominal loading of the test item. Since it is not possible to detect the
substance graphite in the test solution, no other value than the loading
amount is available. Due to the poor water solubility of the test item
the medium for the fish test was prepared according to OECD Guidance 23
"GUIDANCE DOCUMENT ON AQUATIC TOXICITY TESTING OF DIFFICULT SUBSTANCES
AND MIXTURES" as water accommodated fraction (WAF).
The test item used for the acute daphnid test consist of a mixture of
two different graphite qualities, representing a typical spectrum of
graphite's impurities. In the limit test conducted, no significant signs
of toxicity were observed. In conclusion neither the material graphite
itself nor its impurities reached concentrations where aquatoxic effects
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