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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
adsorption / desorption
Remarks:
other: absorption coefficient
Adequacy of study:
other information
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted to GLP in compliance with agreed protocols with no deviations from standard test guidelines and/or minor methodological deficiences which do not affect the quality of the relevant results

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2009

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Method C19 Adsorption Coefficient of Commission Regulation (EC) No 440/2008
GLP compliance:
yes (incl. QA statement)
Type of method:
other: HPLC screening method

Test material

Constituent 1
Details on test material:
- Name of test material (as cited in study report): INK BH11 M
- Structural formula attached as image file (if other than submission substance): see Fig.
- Substance type: dark red powder
- Lot/batch No.: MB-1A
- Storage condition of test material: room temperature in the dark

Study design

Test temperature:
30 C

HPLC method

Details on study design: HPLC method:
EQUIPMENT
- Apparatus: HPLC System Agilent Technologies 1050, incorporating autosampler and work station
- Type: Column type Zorbax SB-CN 5u (250 x 4.6 mm id)
- Type, material and dimension of analytical (guard) column:
- Detection system:


MOBILE PHASES
- Type: Methanol:reverse osmosis water (55:45 v/v); adjusted to pH 7, with 0.1M sodium hydroxide
- Experiments with additives carried out on separate columns: yes / no
- pH: 7.0
- Solutes for dissolving test and reference substances:


DETERMINATION OF DEAD TIME
- Method: dead time determined by measuring the retention time of formamide (purity >/= 99.5%, 620 mg/L solution in mobile phase


REFERENCE SUBSTANCES
- Identity: acetanilide, phenol, atrazine, isoproturon, triadimenol, linuron, maphthalene, endosulfan-diol, fenthion, alpha-endosulfan, phenanthrene, diclofop-methyl, DDT



DETERMINATION OF RETENTION TIMES
- Quantity of test substance introduced in the column: injection volume 10 uL
- Quantity of reference substances: See Table 11.1
- Intervals of calibration:


REPETITIONS
- Number of determinations: 2


EVALUATION
- Calculation of capacity factors k': see tables 11.2 and 11.3
- Calculation of retention times: see tables 11.2 and 11.3
- Determination of the log Koc value:see tables 11.2 and 11.3

Results and discussion

Adsorption coefficientopen allclose all
Type:
Koc
Value:
< 17.8
Type:
log Koc
Value:
< 1.25

Results: HPLC method

Details on results (HPLC method):
Test material contained numerous salted sulphonic acid groups, teseting was carried out at pH 7, with test material in fully ionised state

Applicant's summary and conclusion