Registration Dossier
Registration Dossier
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EC number: 200-521-5 | CAS number: 61-82-5
Endpoint summary
Administrative data
Description of key information
Physico-chemical properties of the substance were determined from experimental testing. Some endpoints were waived, based on chemical structure.
The substance is a dense solid at ambient temperature, with very low volatility. In water, it is very soluble, with no surface-active potential. Ionisation may occur at very low pH.
It has low potential for bioaccumulation.
It decomposes upon heating, but it is NOT classified as dangerous with regard to physical hazards, based on CLP criteria.
Additional information
Summary of relevant physico-chemical properties:
Endpoint |
Data |
Appearance |
Slight yellow powder. Marketed as flakes. |
Melting point |
155°C |
Boiling point |
No bp before decomposition, starting at ca 269°C. |
Density |
1.54 g/cm3 at 20°C |
Vapour pressure |
0.033 mPa at 25°C |
Partition coefficient (log Kow) |
-0.77 at pH 7.1 |
Water solubility |
264 g/L at pH 7.0 (in buffer) |
Surface tension |
73.3 mN/m at 1 g/L |
| Flammability | |
_Flammable solids |
No ignition in contact with a flame. |
_Contact with air or water |
No pyrophoric properties expected, or release of flammable gas. (waived, based on structure and experience). |
_Self-heating |
Unlikely for low melting solids (waived, method not applicable). |
Auto flammability |
No relative self-ignition up to 400°C. |
Explosive properties |
Low potential. (waived,based on structure) |
Oxidising properties |
Low potential. (waived, based on structure) |
Self-reactive properties |
Low potential. (waived, based on structure) |
Organic peroxide |
Not a peroxide. (waived, based on structure) |
| Corrosion to metals | (waived, method not applicable) |
| Dissociation constant | pKa = 4.1 |
| Stability in organic solvents | (waived, not expected to be critical) |
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.
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