Tripotassium hexacyanocobaltate

Density

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

density, other

Remarks:

density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2016-12-13

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Version / remarks:

2012

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Version / remarks:

2008

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

signed 2013-03-22

Type of method:

air comparison pycnometer (for solids)

Dynamic viscosity of test material:

Not applicable- test item is a powder.

Key result

Type:

density

Density:

1.903 g/cm³

Temp.:

20 °C

Remarks on result:

other: relative density D20/4: 1.90

Two tests with different amounts of the test item were performed to determine the relative density D²⁰₄ at a temperature of 20 °C ± 0.01 °C.

Results of the measurement of the density of the test item

Test No.	Temperature [°C]	Amount of test item [g]	Average sample volume [cm³]	Density [g/cm³]*
1	20	12.70	6.66518	1.90543
2	20	15.80	8.31751	1.89961

* The pressurizing-expansion cycles are performed until 5 subsequent volume measurements have a relative standard deviation (RSD) of ≤ 0.2 %.

The mean density of the test item at 20 °C is 1.9025 g/cm³.

The relative density D²⁰₄ is calculated by dividing the density of the test item by the density of water at 4 °C (0.9999750 g/cm³).

The relative density is          D²⁰₄ =1.90.

Conclusions:

According to OECD Test Guidelines 109 (2012), Regulation EC No. 440/2008 Method A.3., the relative density D20/4 of the test item Potassium hexacyanocobaltate (III) at 20 °C ± 0.01 °C (compared to water at 4 °C) is D20/4 = 1.90.

Reference 2

Endpoint:

density, other

Type of information:

other: Handbook data

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

data from handbook or collection of data

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

Key result

Type:

density

Density:

1.91 g/cm³

Temp.:

20 °C

Remarks on result:

other: 20 °C was assumed, room temperature was stated

Conclusions:

Tripotassium hexacyanocobaltate has a density of 1.91 g/cm³

Reference 3

Endpoint:

relative density

Type of information:

other: Handbook data

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

data from handbook or collection of data

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

Key result

Type:

relative density

Temp.:

19 °C

Remarks on result:

other: 1.906

Conclusions:

Tripotassium hexacyanocobaltate has a relative density of 1.906 at 19 °C compared to water at 4 °C.

Description of key information

Smeykal (2017): Relative density: D²⁰₄= 1.90.

CRC (2008): density of 1.91 g/cm³

Merck (2006): relative density of 1.906 at 19 °C

Key value for chemical safety assessment

Relative density at 20C:

1.9

Additional information

Smeykal (2017):

According to OECD Test Guidelines 109 (2012), Regulation EC No. 440/2008 Method A.3., the relative density D20/4 of the test item Potassium hexacyanocobaltate (III) at 20 °C ± 0.01 °C (compared to water at 4 °C) is D²⁰₄ = 1.90.

CRC (2008):

Tripotassium hexacyanocobaltate has a density of 1.91 g/cm³.

Merck (2006):

Tripotassium hexacyanocobaltate has a relative density of 1.906 at 19 °C compared to water at 4 °C.