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EC number: 231-955-3
CAS number: 7782-42-5
Based in the result obtained by a valid GLP-OECD 201 study with graphite as test item no toxic effects were found up to the highest tested concentration of 100 mg/L.
The results for the EC50 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 algae 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 algal test consist of a mixture of two
different graphite qualities, representing a typical spectrum of
graphite's impurities. In the test conducted, no significant signs of
toxicity were observed. In conclusion, neither the material graphite
itself nor its impurities reached concentrations where aquatoxic effects
on algae occurred. The substances graphite is considered not to be toxic
for aquatic plants (algae).
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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