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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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

Density

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Administrative data

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Endpoint:
density
Remarks:
other: specific gravity
Type of information:
other: Handbook data
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature
Qualifier:
according to guideline
Guideline:
other: no data
Deviations:
not applicable
Principles of method if other than guideline:
No data
GLP compliance:
not specified
Type of method:
other: No data
Type:
other: specific gravity
Density:
1.52 other: specific gravity does not have units
Temp.:
20 °C
Remarks on result:
other:
Remarks:
room temperature assumed

Specific gravity is a type of relative density in which the substance density is compared to that of water at 3.98°C. Value reported has been rounded down from 1.5235.

Conclusions:
The specific gravity of disodium hydrogenorthophosphate dodecahydrate has been reported as 1.5235. This data is considered to meet the regulatory requirements for this endpoint as part of a weight of evidence approach.
Endpoint:
density
Remarks:
other: specific gravity
Type of information:
other: handbook data
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature
Qualifier:
according to guideline
Guideline:
other: no data
Deviations:
not specified
Principles of method if other than guideline:
No data
GLP compliance:
not specified
Type of method:
other: no data
Type:
other: specific gravity
Density:
2.07 other: specific gravity does not have units
Temp.:
15 °C

Specific gravity is a type of relative density in which the substance density is compared to that of water at 3.98°C. Value reported has been rounded up from 2.066.

Conclusions:
The specific gravity of disodium hydrogenorthophosphate dihydroate has been reported as 2.066 at 15°C. This data is considered to meet the regulatory requirements for this endpoint as part of a weight of evidence approach.
Endpoint:
density
Remarks:
other: specific gravity
Type of information:
other: handbook data
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature
Qualifier:
according to guideline
Guideline:
other: no data
Deviations:
not applicable
Principles of method if other than guideline:
No data
GLP compliance:
not specified
Type of method:
other: no data
Type:
other: specific gravity
Density:
1.68 other: specific gravity does not have units
Temp.:
20 °C
Remarks on result:
other:
Remarks:
room temperature assumed

Specific gravity is a type of relative density in which the substance density is compared to that of water at 3.98°C. Value reported has been rounded up from 1.679.

Conclusions:
The specific gravity of disodium hydrogenorthophosphate heptahydrate has been reported as 1.679. This data is considered to meet the regulatory requirements for this endpoint as part of a weight of evidence approach.
Endpoint:
density
Remarks:
other: specific gravity
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
Qualifier:
according to guideline
Guideline:
other: no data
Deviations:
not specified
Principles of method if other than guideline:
No data
GLP compliance:
not specified
Type of method:
other: no data
Type:
other: specific gravity
Density:
2.07 other: specific gravity does not have units
Temp.:
16 °C

Specific gravity is a type of relative density in which the substance density is compared to that of water at 3.98°C. Value reported has been rounded up from 2.066.

Conclusions:
The specific gravity of disodium hydrogenorthophosphate has been reported as 2.066 at 16°C. This data is considered to meet the regulatory requirements for this endpoint as part of a weight of evidence approach.

Description of key information

In accordance with Annex XI, Section 1.2. of Regulation (EC) No. 1907/2006 (REACH) a weight of evidence approach has been used to fulfil the endpoint '7.4. Relative Density'. Data are provided for a number of hydrated forms of disodium hydrogenorthophosphate. Taken together these data are considered to be acceptable to fulfil the endpoint as part of a weight of evidence and no further testing is considered to be justified.

Key value for chemical safety assessment

Additional information