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Physical & Chemical properties

Water solubility

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Endpoint:
water solubility
Type of information:
other: handbook data
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: 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"
Qualifier:
no guideline followed
Principles of method if other than guideline:
Not applicable - Handbook data
GLP compliance:
not specified
Type of method:
other: no data
Water solubility:
3.1 mg/L
Temp.:
20 °C
Remarks on result:
other: no pH value given
Details on results:
Not applicable - handbook data; no pH value was given

There was no value given for the pH in the reference. It is assumed that the pH was 9 (according to the MSDS the pH value of a saturated solution is 9).

Conclusions:
Interpretation of results (migrated information): slightly soluble (0.1-100 mg/L)
With a water solubility of 3.1 mg/L is barium sulfate slightly soluble at 20°C.
Endpoint:
water solubility
Type of information:
other: handbook data
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: 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".
Qualifier:
no guideline followed
Principles of method if other than guideline:
Not applicable - Handbook data
GLP compliance:
not specified
Type of method:
other: no data
Water solubility:
1.97 mg/L
Temp.:
10 °C
Remarks on result:
other: no pH value given
Water solubility:
>= 2.07 - <= 2.53 mg/L
Temp.:
18 °C
Remarks on result:
other: no pH value given
Water solubility:
2.91 mg/L
Temp.:
34 °C
Details on results:
Not applicable - handbook data; no pH value was given

There was no value given for the pH in the reference. It is assumed that the pH was between 5-7.

Conclusions:
Interpretation of results (migrated information): slightly soluble (0.1-100 mg/L)
According to the reference, the water solubility of barium sulphate is determined to be 1.97 mg/L at 10 °C and ≥ 2.07 - ≤2.53 mg/L at 18 °C.
Endpoint:
water solubility
Type of information:
other: handbook data
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: 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".
Qualifier:
no guideline followed
Principles of method if other than guideline:
Not applicable - Handbook data
GLP compliance:
not specified
Type of method:
other: no data
Water solubility:
2.22 mg/L
Temp.:
18 °C
Remarks on result:
other: no pH value given
Water solubility:
2.46 mg/L
Temp.:
25 °C
Remarks on result:
other: no pH value given
Water solubility:
3.36 mg/L
Temp.:
50 °C
Remarks on result:
other: no pH value given
Water solubility:
4.13 mg/L
Temp.:
100 °C
Remarks on result:
other: no pH value given
Details on results:
Not applicable - handbook data; no pH value was given

There was no value given for the pH in the reference. It is assumed that the pH was 9.

Conclusions:
Interpretation of results (migrated information): slightly soluble (0.1-100 mg/L)
The water solubiliy of the test substance is determined to be 2.22 mg/L at 18 °C, 2.46 mg/L at 25 °C, 3.36 mg/L at 50 °C and 4.13 mg/L at 100 °C.

Description of key information

Water solubility of barium sulphate: 3.1 mg/L at 25°C at pH 9

Key value for chemical safety assessment

Water solubility:
3.1 mg/L
at the temperature of:
25 °C

Additional information

According to reliable handbook data (e.g. CRC handbook) the water solubility of barium sulphate is 3 mg/L at 25 °C. 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 water solubility of 3 mg/L could be regarded as valid.