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Reference
Endpoint:
oxidising properties, other
Type of information:
experimental study
Adequacy of study:
key study
Study period:
18.12.2012 - 03.01.2013
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods
Justification for type of information:
Experimental test result performed using standard test guidelines
Qualifier:
according to
Guideline:
other: as mention below
Principles of method if other than guideline:
Redox titrations are based on a reduction-oxidation reaction between an oxidizing agent and a reducing agent. A potentiometer or a redox indicator is usually used to determine the endpoint of the titration. In permanganometry a slight faint persisting pink color signals the endpoint of the titration because of the color of the excess oxidizing agent potassium permanganate
GLP compliance:
no
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Specific details on test material used for the study:
- Common name: C.I. Pigment Red 169
- Molecular formula: C28H30CuFeN2O3
- SMILEY: CCc1cccc(c1C(=O)O)c2c3cc(c(cc3oc-4c/c(=N\CC)/c(cc24)C)NCC)C.[Fe].[Cu]
- InChi: 1S/C28H30N2O3.Cu.Fe/c1-6-18-10-9-11-19(26(18)28(31)32)27-20-12-16(4)22(29-7-2)14-24(20)33-25-15-23(30-8-3)17(5)13-21(25)27;;/h9-15,29H,6-8H2,1-5H3,(H,31,32);;/b30-23+;;
- Substance type: Organic
- Physical state: Solid
Contact with:
potassium permanganate
Key result
Sample tested:
other: not specified (migrated information) Redox tritration
Parameter:
other: Redox tritration
Result:
9 355.2 other: mg/100g
Key result
Sample tested:
other: not specified (migrated information) Redox tritration
Parameter:
other: Redox tritration
Result:
9 355.2 other: mg/100g
Interpretation of results:
other: no oxidising properties
Remarks:
Migrated information
Conclusions:
Ferrate(4-), hexakis(cyano-C)-, Et 2-[6-(ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthen-9-yl]benzoate copper(2+) salts (Pigment red 169) was found to have oxidising property since 9355.2 mg of KMnO4 was required for getting the end point of the redox titration for 100 g of ferrate(4-), hexakis(cyano-C)-, Et 2-[6-(ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthen-9-yl]benzoate copper(2+) salts.
Executive summary:

Ferrate(4-), hexakis(cyano-C)-, Et 2-[6-(ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthen-9-yl]benzoate copper(2+) salts (Pigment red 169) was found to have oxidising property since 9355.2 mg of KMnO4 was required for getting the end point of the redox titration for 100 g of ferrate(4-), hexakis(cyano-C)-, Et 2-[6-(ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthen-9-yl]benzoate copper(2+) salts.

Description of key information

Ferrate(4-), hexakis(cyano-C)-, Et 2-[6-(ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthen-9-yl]benzoate copper(2+) salts (Pigment red 169) was found to have oxidising property since 9355.2 mg of KMnO4 was required for getting the end point of the redox titration for 100 g of ferrate(4-), hexakis(cyano-C)-, Et 2-[6-(ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthen-9-yl]benzoate copper(2+) salts.

Key value for chemical safety assessment

Oxidising properties:
non oxidising

Additional information

Ferrate(4-), hexakis(cyano-C)-, Et 2-[6-(ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthen-9-yl]benzoate copper(2+) salts (Pigment red 169) was found to have oxidising property since 9355.2 mg of KMnO4 was required for getting the end point of the redox titration for 100 g of ferrate(4-), hexakis(cyano-C)-, Et 2-[6-(ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthen-9-yl]benzoate copper(2+) salts.

Justification for classification or non-classification

Ferrate(4-), hexakis(cyano-C)-, Et 2-[6-(ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthen-9-yl]benzoate copper(2+) salts (Pigment red 169) was found to have oxidising property since 9355.2 mg of KMnO4 was required for getting the end point of the redox titration for 100 g of ferrate(4-), hexakis(cyano-C)-, Et 2-[6-(ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthen-9-yl]benzoate copper(2+) salts.