Trisodium bis[3-hydroxy-4-[(2-hydroxy-1-naphthyl)azo]naphthalene-1-sulphonato(3-)]chromate(3-)

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

February 09, 2018

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

test procedure in accordance with generally accepted scientific standards and described in sufficient detail

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Version / remarks:

2012

GLP compliance:

yes

Type of method:

air comparison pycnometer (for solids)

Type:

relative density

Density:

1.813

Temp.:

20 °C

Test No.	Temperature [°C]	Amount of test item [g]	Average sample volume [cm³]	Density [g/cm³]*
1	20	12.35	6.82540	1.80942
2	20	12.48	6.87345	1.81568

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

Conclusions:

1.8126 at 20 °C

Executive summary:

The relative density of the test item was determined by gas pycnometer method, according to the OECD Guideline 109 (2012).

To calculate the relative density at 20 °C, the measured density of the test item at 20 °C was divided by the density of water at 4 °C (0.9999750 g/cm³).

The relative density D₄²⁰ of the test item at 20 °C ± 0.01 °C (compared to water at 4 °C) resulted to be 1.8126.

Conclusion

1.8126 at 20 °C

Description of key information

1.8126 at 20 °C

Key value for chemical safety assessment

Relative density at 20C:

1.813

Additional information

OECD 109 - air comparison pycnometer (for solids)