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REACH

Benzoic acid, 2-hydroxy-5-[[4-[[4-[[8-hydroxy-7-[[4-[(8-hydroxy-3,6-disulfo-1-naphthalenyl)azo]-2-methoxy-5-methylphenyl]azo]-3,6-disulfo-1-naphthalenyl]amino]-6-(phenylamino)-1,3,5-triazin-2-yl]amino]phenyl]azo]-, pentasodium salt

EC number: 228-995-9 | CAS number: 6388-26-7

Life Cycle description
Uses advised against

Physical & Chemical properties

Density

Currently viewing:

Administrative data

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:

Type of method:

pycnometer method

Type:

relative density

Density:

ca. 1.413

Temp.:

20 °C

Absolute density of a substance (δ) is calculated as:

δ subs = WS / V subs = WS / (V pyc – V hex ) = WS / (V pyc – WH2 / δ hex ) = WS / (V pyc – WH 2 × V pyc / WH1 ) Relative density (D²⁰₄) is calculated as: δ subs / 0.999973

	1st test		2nd test		Media
WP1	42.3356	g	41.8561	g
WHP	75.2791	g	74.7886	g
WH1	32.9435	g	32.9325	g
δhex	0.659	g/cm³	0.659	g/cm³	0.659	g/cm³
Vol Pic	50	cm³	50	cm³
WP2	42.3354	g	41.8563	g
WSP	47.3246	g	46.8317	g
WS	4.9892	g	4.9754	g
WSH	35.5897	g	35.6040	g
WH2	30.6005	g	30.6286	g
Vhex	46.4439	cm³	46.5021	cm³
Vsubs	3.5561	cm³	3.4979	cm³
δsubs	1.403	g/cm³	1.422	g/cm³	1.413	g/cm³
Relative density (δ²⁰₄)					1.413
Standard deviation					0.0137
Relative standard deviation					0.97

Conclusions:

Relative density: 1.413 at 20 °C.

Executive summary:

Method

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

Result

Relative density: 1.413 at 20 °C.

Description of key information

Relative density: 1.413 at 20 °C

Key value for chemical safety assessment

Relative density at 20C:: 1.413

Additional information

Relative density was determined by means of a pycnometer as per recommendations of OECD guideline 109. Relative density was calculated from the difference in weight between the full and empty pycnometer and its volume and resulted 1.413.

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