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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 231-148-6 | CAS number: 7440-38-2
Appearance / physical state / colour
Administrative data
Link to relevant study record(s)
- Endpoint:
- appearance / physical state / colour
- Type of information:
- other: Handbook data
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Information taken from peer-reviewed handbook/database
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Not applicable: Handbook data.
- Physical state at 20°C and 1013 hPa:
- solid
- Form:
- compact
- Colour:
- Arsenic is allotropic, i.e. it can exist in various modifications. The grey metallic form is the only relevant form under normal conditions, but the yellow form (obtained by rapid cooling of As vapour) and the black form are also commonly known.
- Odour:
- odourless
- Substance type:
- element
- Conclusions:
- Arsenic metal is an compact, solid, odourless element.
Reference
Description of key information
Arsenic is allotropic, i.e. it can exist in various modifications. The grey metallic form is the only relevant one under normal conditions. However, the yellow (obtained by rapid cooling of As vapour) and black forms are also common. Grey metallic arsenic is odourless.
Key value for chemical safety assessment
- Physical state at 20°C and 1013 hPa:
- solid
- Form:
- solid
- Colour:
- grey
Additional information
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.
