Registration Dossier
Registration Dossier
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EC number: 268-615-9 | CAS number: 68131-33-9 The solution formed by reacting the sodium salts of green liquor with calcium hydroxide.
Endpoint summary
Administrative data
Description of key information
Additional information
White liquor was clearly toxic to aquatic organisms. Daphnia was more sensitive organisms than algae. The dry solids/water ratio of the tested sample was 17/83 % by weight.
Short term toxicity to invertebrates:
EC50 (48h) values for Daphnia magna were 4.4 and 4.6 mg/l (dwt.) 26 and 27 mg/l (wwt.)
NOEC (48h) value for Daphnia magna was 2.2 mg/l (dwt) (13 mg/l (wwt.)) in both cases.
Short term toxicity to aquatic algae:
EC50 (72h) value for Pseudokirchneriella subcapitata was 77.7 mg/l (dwt.) (457.1 mg/l (wwt)).
Long term toxicity to aquatic species:
NOEC (72h) value for Pseudokirchneriella subcapitata was 18.8 mg/l (dwt.) (110.6 mg/l (wwt)).
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