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Physical & Chemical properties

Water solubility

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Endpoint:
water solubility
Type of information:
other: handbook
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Remarks:
Data have been taken from many sources, including both compilations and the primary literature. Where conflicts were found, the value deemed most reliable was chosen. Peer-reviewed. Reference sources are provided for selected properties but not leading to sufficient information on the material & method used.
Qualifier:
no guideline followed
Principles of method if other than guideline:
Method followed unknown; data from handbook.
GLP compliance:
not specified
Water solubility:
26.4 other: wt%
Temp.:
20 °C
Remarks on result:
other: pH not given in the handbook
Water solubility:
28.8 other: wt%
Temp.:
25 °C
Remarks on result:
other: pH not given in the handbook
Details on results:
Of very high solubility
Conclusions:
From the CRC Handbook of Chemistry and Physics (80th ed.) it was concluded that ammonium dihydrogenorthophosphate is very soluble (> 10000 mg/L) in water.
Endpoint:
water solubility
Type of information:
other: handbook
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Remarks:
Handbook data are considered from a trusted source. Data have been taken from many sources, including both compilations and the primary literature - where conflicts were found, the value deemed most reliable was chosen. The reference was peer-reviewed. In addition, the reference sources are indicated although not leading to sufficient information on the material & method used.
Qualifier:
no guideline followed
Principles of method if other than guideline:
Method followed unknown; data from handbook
GLP compliance:
not specified
Water solubility:
400 g/L
Remarks on result:
other: Temperature not given in the handbook. pH of 0.2 M aq solution: 4.2

One gram dissolves in about 2.5 mL water (equivalent to 400 g/L).

Conclusions:
According to The Merck Index (12th ed.) ammonium dihydrogenorthophosphate is very soluble (> 10000 mg/L) in water.
Endpoint:
water solubility
Type of information:
other: handbook
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
documentation insufficient for assessment
Remarks:
The preface and introduction to this book (9th Edition) provide no indication that the physico-chemical data has been ‘peer reviewed’. The reference source is not indicated leading to insufficient information on the material & method used.
Qualifier:
no guideline followed
Principles of method if other than guideline:
Method followed unknown; data from handbook.
GLP compliance:
not specified
Water solubility:
> 1 000 mg/L
Remarks on result:
other: no more details available

Soluble in water (no value given in the handbook)

Conclusions:
According to Sax's Dangerous Properties of Industrial Materials (9th. ed.) ammonium dihydrogenorthophosphate is soluble (1000-10000 mg/L) in water.

Description of key information

From three handbooks, it was concluded that ammonium dihydrogenorthophosphate is very soluble in water.

Key value for chemical safety assessment

Water solubility:
100 g/L
at the temperature of:
20 °C

Additional information

The handbooks used:

-The CRC Handbook of Chemistry and Physics (80th ed.)

-The Merck Index (12th ed.)

-Sax's Dangerous Properties of Industrial Materials (9th. ed.)