Registration Dossier
Registration Dossier
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EC number: 238-778-0 | CAS number: 14726-36-4
Endpoint summary
Administrative data
Description of key information
Additional information
Zinc bis(dibenzyldithiocarbamate) is a white powder with a melting range from 178 -180°C at 101.325 kPa (Analytical laboratory in Termoli, 2005), a relative density of 1.42 at 20 °C (Analytical laboratory in Termoli), a boiling temperature of 330 °C at atmospheric pressure (Currenta GmbH & Co. OHG, 2010a) and a water solubility of 2.30 µg/L at 20 °C (Arkema, 2013). The substance is non-flammable, non-explosive and non-oxidizing. Due to technical difficulties, it was not possible to measure the partition coefficient (Kow) in accordance with OECD TG 117 or OECD TG 107. Therefore, the Kow was calculated as the ratio between the experimental solubility in water and the experimental value in a saturated octanol solution according to ECHA guidance R7a. The solubility of the test substance in 1-octanol was determined to be 44.7 mg/L at 20 °C (Eurofins, 2021) in accordance with OECD TG 105 flask method and EPA OPPTS 830.7840. Based on this result and the water solubility of the substance, the Kow was calculated to be 19434.78 and LogKow was 4.29.
In accordance with Column 2 of REACH Annexes VII-X and/or Sections 1 or 2 of REACH Annex XI and/or Chapter R.7A of REACH Guidance on information requirements and chemical safety assessment, the conductance of the studies on surface tension, stability in organic solvents, dissociation constant and viscosity are not warranted.
The following particle size distribution was determined (Currenta GmbH & Co. OHG, 2010c):
0.45% < 4 μm; 13.49% in the range of 4-10 μm; 86.06% in the range 10-100 μm (spherical volume).
0.43% < 4 μm; 11.62% in the range 4-10 μm; 87.95% in the range 10-100 μm (cubical volume).
The median diameter was 18.4 μm.
The vapour pressure was predicted to be 1.01E-5 mmHg (0.00134 Pa) by a calculation method (MPBPVP v1.43).
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