Sodium Salts of (1-Hydroxyethylidene)bisphosphonic acid (1-2:1)

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

weight of evidence

Reliability:

4 (not assignable)

Rationale for reliability incl. deficiencies:

secondary literature

Qualifier:

according to guideline

Guideline:

other: in-house method number: 4-07

GLP compliance:

no

Type of method:

other: The type of method is not reported.

Dynamic viscosity of test material:

not available

Type:

relative density

Density:

>= 1.15 - <= 1.17 other: unitless

Temp.:

20 °C

Description of key information

Density: Company data indicates relative density/specific gravity in the range 1.15 - 1.17 for the commercially-available aqueous solution.

Key value for chemical safety assessment

Relative density at 20C:

1.16

Additional information

In support of the Key data, it is notable that in general, phosphonate salts are relatively high in density in solid form. Also, due to the very high water-solubility, saturated aqueous solutions of high specific gravity can be prepared.

In available secondary sources, specific gravity values of 1280-1320 kg/m³ and 1.3 have been reported at 20°C for analogous HEDP sodium salts.