Sodium bis[2,4-dihydro-4-[(2-hydroxy-4-nitrophenyl)azo]-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-)]chromate(1-)

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

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:

1995

GLP compliance:

no

Type of method:

pycnometer method

Type:

relative density

Density:

ca. 1.379

Temp.:

20 °C

δsubs = WS / Vsubs = WS / (Vpyc – Vhex) = WS / (Vpyc – WH2 / δhex) = WS / (Vpyc – WH2 × Vpyc / WH1)

Relative density ( D²⁰₄) is calculated as: δsubs / 0.999973

1^sttest		2^ndtest		Media
WP1	43.3185	g	43.0900	g
WHP	76.1656	g	76.0101	g
WH1	32.8471	g	32.9201	g
δ hex	0.657	g/cm^3	0.658	g/cm^3	0.6575	g/cm^3
Vol Pic	50.00	cm^3	50.00	cm^3
WP2	43.3189	g	43.0904	g
WSP	47.4745	g	47.2613	g
WS	4.1556	g	4.1709	g
WSH	35.0518	g	35.0738	g
WH2	30.8962	g	30.9029	g
Vhex	47.0262	cm^3	46.9362	cm^3
Vsubs	2.9768	cm^3	3.0638	cm^3
δsubs	1.397	g/cm^3	1.361	g/cm^3	1.379	g/cm^3
Relative density (δ^204)					1.379
Standard deviation					0.0255
Relative standard deviation					1.85

Conclusions:

Relative density: 1.379 at 20 °C

Executive summary:

Method

Relative density was determined by means of a pycnometer following OECD guideline 109. Density was calculated from the difference in weight between the full and empty pycnometer and its volume.

Result

Relative density: 1.379 at 20 °C.

Description of key information

1.379 at 20 °C.

Key value for chemical safety assessment

Relative density at 20C:

1.379

Additional information

Pycnometer method, OECD guideline 109.