Registration Dossier
Registration Dossier
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EC number: 407-230-4 | CAS number: 126637-70-5 BLUE GS 1259 R5
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1990-01-24 to 1991-03-07
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline-conform study under GLP without deviations.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 991
- Report date:
- 1991
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- ring method
Test material
- Reference substance name:
- Dilithium disodium (5,5'-diamino-(μ-4,4'-dihydroxy-1:2-κ-2,O4,O4',-3,3'-[3,3'-dihydroxy-1:2-κ-2-O3,O3'-biphenyl-4,4'-ylenebisazo-1:2-(N3,N4-η:N3',N4'-η)]-dinaphthalene-2,7-disulfonato(8)))dicuprate(2-)
- EC Number:
- 407-230-4
- EC Name:
- Dilithium disodium (5,5'-diamino-(μ-4,4'-dihydroxy-1:2-κ-2,O4,O4',-3,3'-[3,3'-dihydroxy-1:2-κ-2-O3,O3'-biphenyl-4,4'-ylenebisazo-1:2-(N3,N4-η:N3',N4'-η)]-dinaphthalene-2,7-disulfonato(8)))dicuprate(2-)
- Cas Number:
- 126637-70-5
- Molecular formula:
- Hill formula: C32 H16 Cu2 Li2 N6 Na2 O16 S4 CAS formula: C32 H16 Cu2 N6 O16 S4. 2Li 2Na
- IUPAC Name:
- dicopper(2+) dilithium(1+) disodium 4,4'-bis[2-(8-amino-1-oxido-3,6-disulfonatonaphthalen-2-yl)diazen-1-yl]-[1,1'-biphenyl]-3,3'-bis(olate)
Constituent 1
Results and discussion
Surface tension
- Surface tension:
- 47.2 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 086 mg/L
Applicant's summary and conclusion
- Conclusions:
- The surface tension of a 1 g/l solution of the substance in water was determined to be 47.2 mN/m (20 °C). It was concluded that the substance should be regarded as a surface active material.
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