Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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EC number: 235-759-9 | CAS number: 12656-85-8 This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 77605.
Endpoint summary
Administrative data
Description of key information
Additional information
The water solubility of the pigment in water is very low and no acute toxicity was observed. No chronic data are available for C.I. Pigment Yellow 34 or C.I.Pigment Red 104. As shown in the Transformation/Dissolution study, a small proportion of the parent substance may dissolve and release chromate ions (CrO42 -, determined as Cr ions) and lead ions (Pb2 +).
Data on lead and chromium are summarised below for aquatic invertebrates and fish.
Chromium |
Endpoint |
Comments |
Fish Pimephales promelas
|
412d-NOECmort 1 mg/l (most sensitive endpoint) 60d-NOECmort/growth rate 1 mg/l |
412 days first generation + 60 days second generation Pickering 1980 |
Daphnia magna |
3wk-EC16 repro 330 µg/l |
Biesinger & Christensen 1972 |
|
21d-NOEC repro 0.7 mg/l |
Kuhn et al. 1989 |
Lead |
|
|
Fish Onchorhynchus mykiss |
3 wk-LOEC 13 µg/l |
Hematological effects Hodson & Blunt 1978 |
Daphnia magna |
3wk-EC16 repro 30 µg/l |
Biesinger & Christensen 1972 |
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