Registration Dossier
Registration Dossier
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EC number: 231-890-0 | CAS number: 7775-14-6
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:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- 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
- Key result
- Form:
- powder
- Colour:
- Gray-white
- Odour:
- other: no data
- Substance type:
- inorganic
- Conclusions:
- According to the reference, sodium dithionite is a grayish-white powder.
- Endpoint:
- appearance / physical state / colour
- Type of information:
- other: Handbook data
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- 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
- Key result
- Form:
- crystalline
- Colour:
- white or grayish-white
- Odour:
- other: slightly characteristic odour
- Substance type:
- inorganic
- Conclusions:
- According to the reference, sodium dithionite is a white or grayish-white, crystalline powder with a slight characteristic odour.
Referenceopen allclose all
Description of key information
Sodium dithionite is a grayish-white powder with a slight characteristic odour (handbook).
Key value for chemical safety assessment
- Physical state at 20°C and 1013 hPa:
- solid
- Form:
- solid: particulate/powder
- Colour:
- grey
- white
Additional information
For the evaluation of this endpoint, data from two handbooks (CRC handbook and Merck Index) were used as a weight of evidence. 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 dithionite 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.
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