Registration Dossier
Registration Dossier
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EC number: 233-666-8 | CAS number: 10294-66-3
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
- Remarks:
- From 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, potassium thiosulfate appears as a colourless hygroscopic crystalline solid.
- 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
- Remarks:
- From 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, potassium thiosulphate appears as colourless hygroscopic crystals.
Referenceopen allclose all
Description of key information
Potassium thiosulfate appears as a colourless hygroscopic crystalline solid.
Key value for chemical safety assessment
- Physical state at 20°C and 1013 hPa:
- solid
- Form:
- solid: crystalline
- Colour:
- colourless
Additional information
For the evaluation of this endpoint data from two handbooks (CRC handbook and Merck Index) were used in a weight of evidence approach. 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". Useful reference books and data compliations containing peer reviewed physico-chemical data include the Merck Index and the CRC Handbook of Chemistry and Physics.
Data available from these handbooks describe potassium thiosulfate as a colourless hygroscopic crystalline solid.
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