7-acetamido-4-hydroxy-3-[[4-[[2-(sulphooxy)ethyl]sulphonyl]phenyl]azo]naphthalene-2-sulphonic acid, sodium salt

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2013-09-24

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)

Deviations:

no

GLP compliance:

yes

Type of method:

pycnometer method

Key result

Type:

relative density

Density:

1.66

Temp.:

20 °C

Conclusions:

The relative density of the test item at 20 °C (compared to water at 4 °C) was 1.66

Executive summary:

The Test item was tested as delivered. Two test series with different weights were performed at ambient temperature (20.0 °C±0.2 °C).

 

1^strun

Weight 9.8569 g	p1 / psi	p2 / psi	Volume / cm^3	DensityrPR/ g / cm^3
1. measurement	19.486	11.554	5.9604	1.6537
2. measurement	19.586	11.614	5.9558	1.6550
3. measurement	19.550	11.590	5.9729	1.6503
Mean			5.9631	1.6530

 

 

2^ndrun

Weight 10.2282 g	p1 / psi	p2 / psi	Volume / cm^3	DensityrPR/ g / cm^3
1. measurement	19.524	11.553	6.1119	1.6735
2. measurement	19.638	11.622	6.1020	1.6762
3. measurement	19.540	11.565	6.0956	1.6780
Mean			6.1032	1.6759

 

 

Mean densityr_PRfor the two test series: 1.6645 g/cm³

Relative density (compared to water at 4 °C)D₄^R: 1.66

Description of key information

The relative density of the test item at 20°C (compared to water at 4°C) was 1.66

Key value for chemical safety assessment

Relative density at 20C:

1.66