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REACH

Cuprate(6-), [2-[[[[3-[[4-chloro-6-[[4-[[4-chloro-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-2,5-disulfophenyl]amino]-1,3,5-triazin-2-yl]amino]-2-hydroxy-5-sulfophenyl]azo]phenylmethyl]azo]-5-sulfobenzoato(8-)]-, pentasodium hydrogen, (SP-4-3)-

EC number: 268-655-7 | CAS number: 68132-91-2

Life Cycle description
Uses advised against

Physical & Chemical properties

Density

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Administrative data

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

May 25, 2016

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Deviations:

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Deviations:

GLP compliance:

Type of method:

air comparison pycnometer (for solids)

Key result

Type:

relative density

Density:

1.52 g/cm³

Temp.:

20.2 °C

A measurement chamber with a volume of V_c= 7.9970 cm³and an expansion chamber with a volume of V_r= 6.1927 cm³were used.

Two test series with different weights were performed at ambient temperature (20.2 °C). For results seeTable1andTable2.

Table1: Results of the 1^sttest series

Weight: 1.7969 g	p₁/ psi	p₂/ psi	Volume / cm³	Densityr_PR/ g·cm^-3
1^stmeasurement	19.545	10.242	1.1792	1.5239
2^ndmeasurement	19.564	10.252	1.1791	1.5240
3^rdmeasurement	19.595	10.266	1.1822	1.5199
Mean			1.1802	1.5226

Table2: Results of the 2^ndtest series

Weight: 1.9030 g	p₁/ psi	p₂/ psi	Volume / cm³	Densityr_PR/ g·cm^-3
1^stmeasurement	19.518	10.173	1.2555	1.5157
2^ndmeasurement	19.552	10.194	1.2510	1.5212
3^rdmeasurement	19.563	10.197	1.2548	1.5166
Mean			1.2538	1.5178

Mean densityr_PRfor the two test series: 1.52 g/cm³

Relative density (compared to water at 4 °C):

D₄^R= 1.52 (20.2 °C)

Executive summary:

The relative density of the test item at ambient temperature (compared to water at 4 °C) was determined to be:

D₄^R= 1.52 (20.2 °C)

Description of key information

The density of the test item was determined according to the European Commission Regulation (EC) No. 440/2008, Method, A.3. Density of liquids and solids: Gas comparison pycnometer and according to the OECD test guideline, OECD 109 Density of liquids and solids.

Key value for chemical safety assessment

Relative density at 20C:: 1.52

Additional information

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