Registration Dossier
Registration Dossier
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EC number: 233-321-1 | CAS number: 10117-38-1
Appearance / physical state / colour
Administrative data
Link to relevant study record(s)
- Endpoint:
- appearance / physical state / colour
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- from 2008-06-03 to 2008-07-02
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Substance was inspected visually.
- GLP compliance:
- yes
- Physical state at 20°C and 1013 hPa:
- solid
- Form:
- powder
- Colour:
- white
- Odour:
- other: no data
- Substance type:
- inorganic
- Conclusions:
- The test item is a white, fine powder. Homogeneous by visual inspection at room temperature.
- Executive summary:
The test substance, Potassium sulfite, was inspected visually. The test item is a white, fine powder. Homogeneous by visual inspection at room temperature.
- Endpoint:
- appearance / physical state / colour
- Type of information:
- other: Handbook data
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Remarks:
- Ffrom a trusted source acc. to "ECHA, Guidance on information requirements and chemical safety assessment – Chapter R.7a: Endpoint specific guidance".
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Not applicable - Handbook data
- GLP compliance:
- not specified
- Physical state at 20°C and 1013 hPa:
- solid
- Form:
- crystalline
- Colour:
- Colourless
- Odour:
- other: no data
- Substance type:
- inorganic
- Conclusions:
- According to the reference, dipotassium sulfite appears as a colourless hexagonal crystalline.
Referenceopen allclose all
Description of key information
The test item potassium sulfite (K2SO3, Molecular weight 158.26), CAS 10117 -38 -1 is a colourless hexagonal crystalline solid.
Key value for chemical safety assessment
- Physical state at 20°C and 1013 hPa:
- solid
- Form:
- other: powder or crystalline
- Colour:
- colourless
- white
Additional information
For the evaluation of this endpoint, data from one study report and from one handbooks was used as a weight of evidence. According to the REACH regulation (“ECHA, guidance on information requirements and chemical safety assessment – chapter R.7a”), it is allowed to use specific handbook data as a reliable data source. Useful reference books and data compilations containing peer reviewed physico-chemical data include the Merck Index and the CRC Handbook of Chemistry and Physics.
Data available from the CRC handbook describe Potassium sulfite as a colourless hexagonal crystalline.
An unpublished BASF study is available in which the physicol-chemical properties of the substance were characterised. The appearance was determined by visual inspection. The test item is a white, fine powder. Homogeneous by visual inspection at room temperature.
Comparing these two information it can be stated that Potassium sulfite is a colourless to white powder with no specific odour.
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.
