Registration Dossier
Registration Dossier
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EC number: 305-644-9 | CAS number: 94891-43-7
Adsorption / desorption
Administrative data
- Endpoint:
- adsorption / desorption: screening
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 986
- Report date:
- 1986
Materials and methods
Test guideline
- Qualifier:
- no guideline available
- GLP compliance:
- no
- Type of method:
- batch equilibrium method
- Media:
- sewage sludge
Test material
- Reference substance name:
- Nickel, [29H,31H-phthalocyaninato(2-)-N29,N30,N31,N32]-, chlorosulfonyl derivs., reaction products with 2-[(4-aminophenyl)sulfonyl]ethyl hydrogen sulfate monosodium salt, sodium salts
- EC Number:
- 305-644-9
- EC Name:
- Nickel, [29H,31H-phthalocyaninato(2-)-N29,N30,N31,N32]-, chlorosulfonyl derivs., reaction products with 2-[(4-aminophenyl)sulfonyl]ethyl hydrogen sulfate monosodium salt, sodium salts
- Cas Number:
- 94891-43-7
- Molecular formula:
- C32 H16 N8 Ni . C8 H11 N O6 S2 . 2 Na
- IUPAC Name:
- Nickel, [29H,31H-phthalocyaninato(2-)-N29,N30,N31,N32]-, chlorosulfonyl derivs., reaction products with 2-[(4-aminophenyl)sulfonyl]ethyl hydrogen sulfate monosodium salt, sodium salts
- Test material form:
- solid: particulate/powder
Constituent 1
- Radiolabelling:
- no
Study design
- Test temperature:
- room temperature
Batch equilibrium or other method
- Analytical monitoring:
- yes
- Details on test conditions:
- 2 g/L sludge concentration
200 mg/L dye concentration
Results and discussion
Adsorption coefficient
- Sample No.:
- #1
- Type:
- other: adsorption to sewage sludge [% ]
- Value:
- 55
- Temp.:
- 20 °C
- Matrix:
- sewage sludge
- Remarks on result:
- other: pH not determined
Results: Batch equilibrium or other method
- Recovery of test material:
- >90% by precipitation with FeSO4
- Transformation products:
- not measured
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not specified
- Conclusions:
- 55% of a 100 mg/L dye solution adsorbs to sewage sludge (2 g/L). However, 90% of the substance were recovered after a chemical precipitation test with FeSO4 ( 1 g/L). Additionally, adsorption to activated carbon was measured (determined value: 38 mg/L). The general adsorption rate to activated sludge is relatively low and almost fully reversible which corresponds to the low log Kow and the high water solubility.
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