Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 443-520-7 | CAS number: -
The adsorption coefficient (Koc) of the test material has been determined to be less than 17.8, log10 Koc < 1.25.
A stainless steel ball of known volume was used to calibrate the instrument prior to measurement of the test sample.
The relative density of the test material has been determined to be 2.19 at 20.5 +- 0.5 °C.
No determination of dissociation constant was carried out for the test material. The test material has complex overlapping dissociation constants and is unsuitable for use with the methods detailed in OECD Guideline 112. However, using specialist chemical estimation software (Advanced Chemistry Development (ACD), pKa calculator, version 6.0, obtained using ACD (I-Lab web services)) and replacing all sodium ions with protons, the test material was predicted to have four dissociation constants of 7.19 +- 0.30, 5.87 +- 0.30, 1.14 +- 0.10 and 0.61 +- 0.10.
Proportion of test material having a particle size less than 100 µm: 79.8% (sieve)
Proportion of test material having a particle size less than 10 µm: 2.38% (cascade impactor)
The results indicated that the proportion by mass of particles which, if inhaled, can be expected to achieve deposition throughout the respiratory tract is 2.38%.
The surface tension of a 1.02 g/L solution of test material has been determined to be 71.9 mN/m at 22.0 +- 0.5 °C. The test material is considered not to be a surface-active material.
Duplicate standard solutions of test material were prepared in water:relevant buffer at a nominal concentration of 200 mg/L.
The estimated half-life at 25 °C of the test material is > 1 year for pH 4, 7 and 9.
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.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Close Do not show this message again