Copper, [29H,31H-phthalocyaninato(2-)-N29,N30,N31,N32]-, aminosulfonyl sulfo derivs., sodium salts

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

read-across from supporting substance (structural analogue or surrogate)

Adequacy of study:

key study

Study period:

January 20th, 2016

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

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

Justification for type of information:

REPORTING FORMAT FOR THE ANALOGUE APPROACH
The usage of information on Direct Blue 199 Na/NH4, which has the same main component and with a different counter ion, can be considered as suitable and appropriated because the difference in salification is expected to not influence the characteristics related to the specific end-point.
The impurity profile does not impact on the read across proposed. Details on the approach followed are included in the document attached to the IUCLID section 13.

Reason / purpose for cross-reference:

read-across source

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Version / remarks:

adopted 27th July 1995

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Deviations:

no

GLP compliance:

no

Type of method:

pycnometer method

Type:

relative density

Density:

0.927

Temp.:

20 °C

Results of density measurement

Parameter	1^st determination	2^nd determination	Average
Weight of empty pycnometer (Zpyc)	19.45153	18.08061	-
Weight of pycnometer with test substance	25.27767	24.01736	-
Weight of solid test substance (Z1)	5.82614	5.93675	-
Weight of pycnometer with sample and n-heptane (Z3)	38.26401	37.08952	-
Weight of pycnometer with n-heptane (Z2)	36.71647	35.54632	-
Density of n-heptane (ρliq)	0.68297	0.68375	0.68336
Density of solid substance (ρ)	0.9302	1.4446	0.9270
Relative density of solid substance (D4^20)	-	-	0.9270

Note: Standard deviation of relative density is 0.0056 and was calculated from variation range.

Conclusions:

Relative density: 0.9270, at 20 °C

Executive summary:

The density of the test substance was measured using the pycnometer method. The procedure was performed according to the EU Method A.3 and according to the OECD guideline 109. The density was calculated from the difference in weight between the full and empty pycnometer and its known volume. The relative density was calculated as a ratio of densities of the substance at 20 °C and water at 4 °C.

Conclusion

Relative density: 0.9270, at 20 °C

Description of key information

Relative density: 0.927 at 20 °C

Key value for chemical safety assessment

Relative density at 20C:

0.927

Additional information

Pycnometer method - OECD 109