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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.

Diss Factsheets

Physical & Chemical properties

Water solubility

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Administrative data

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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.