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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 240-778-0 | CAS number: 16721-80-5
Density
Administrative data
Link to relevant study record(s)
Description of key information
Relative density of NaHS, (commercial form, type ca. 72 %) : 1.55 at room temperature (study result; ca. 19 °C, air compression pycnometry)
Density for NaHS, anhydrous: 1.79 g/cm3 (relative density = 1.79) at room temperature (handbook data)
Key value for chemical safety assessment
Additional information
The test data (GLP, OECD guideline conform) is reliable without restrictions.
The handbook data considered to be from a trusted source acc. to "ECHA, Guidance on information requirements and chemical safety assessment – Chapter R.7a: Endpoint specific guidance" and therefore, the description of sodium hydrogensulfide, anhydrous could be regarded as valid.
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.
