Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

- Appearance: inorganic, yellow powder.

- Melting point: > 500 °C

- Boiling point: > 500 °C

- water solubility: 324.4 g/L

- Relative density: 1.90

- PSD: d50 = 326.8 µm, d90 = 680.8 µm, d10 = 127.9 µm

- Dustiness:

total: 443.43mg/g

MMAD= 33.72 µm, GSD= 1.48

Fractional deposition in human respiratory tract: Head (ET): 38.04%, Tracheobronchial (TB): 0.02%, Pulmonary (PU): <0.01%

Additional information

Studies conducted in accordance with EU guidelines are available for: appearance, melting point, boiling point, relative density, particle size distribution, dustiness and water solubility.

Waivers are proposed for boiling point, vapour pressure, partition coefficient, surface tension, flash point, auto flammability, flammability for solids, pyrophoric properties, flammability in contact with water, explosiveness, oxidising properties, stability in organic solvents, dissociation constant and viscosity.