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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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Endpoint:
water solubility
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
Type of method:
other: no data
Water solubility:
718 g/L
Temp.:
0 °C
Remarks on result:
other: no pH was stated
Details on results:
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". However, no pH value was given in the CRC handbook for the water solubility of ammonium hydrogensulphite.

No pH value was given but data could be regarded as valid according to "ECHA, Guidance on information requirements and chemical safety assessment – Chapter R.7a: Endpoint specific guidance".

Conclusions:
Interpretation of results: very soluble (> 10000 mg/L)
According to the reference, the water solublity of ammonium hydrogensulphite is 718000 mg/L. In conclusion the test substance is very soluble. No pH was given.
Endpoint:
water solubility
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
Type of method:
other: no data
Water solubility:
2 670 000 mg/L
Temp.:
10 °C
Remarks on result:
other: no pH was stated
Water solubility:
6 200 000 mg/L
Temp.:
60 °C
Remarks on result:
other: no pH was stated
Details on results:
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". However, no pH value was given in the Merck Index for the water solubility of ammonium hydrogensulphite.

No pH value was given but data could be regarded as valid according to "ECHA, Guidance on information requirements and chemical safety assessment – Chapter R.7a: Endpoint specific guidance".

Conclusions:
Interpretation of results: very soluble (> 10000 mg/L)
According to the reference, the water solublity of ammonium hydrogensulphite is 6200000 mg/L. In conclusion the test substance is very soluble. No pH was given.

Description of key information

Ammonium hydrogensulfite is very soluble in water.

Key value for chemical safety assessment

Water solubility:
2 670 g/L
at the temperature of:
10 °C

Additional information

Information from two handbooks are available (CRC handbook and the Merck Index). According to "ECHA, Guidance on information requirements and chemical safety assessment – Chapter R.7a: Endpoint specific guidance", handbook data are considered to be a trusted source.

Data from these two handbooks show that ammonium hydrogensulfite is very soluble in water. The solubility is given for three different temperatures:

- 718 g/L measured at 0°C,

- 2670 g/L measured at 10°C, and

- 6200 g/L measured at 60°C.

However, no pH value was given for the water solubility of ammonium hydrogensulphite.