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REACH

Reaction products of Hydrogen amino-4-hydroxynaphthalene-2-sulfonate, Potassium substituted-5-{[2-(sulfonatooxy)ethyl]sulfonyl}benzenesulfonate and Sodium substituted-({4-[(2-chloroethyl)sulfonyl]butanoyl}amino)benzenesulfonate

EC number: - | CAS number: -

Life Cycle description
Uses advised against

Environmental fate & pathways

Adsorption / desorption

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference

Endpoint:

adsorption / desorption: screening

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2018

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 121 (Estimation of the Adsorption Coefficient (Koc) on Soil and on Sewage Sludge using High Performance Liquid Chromatography (HPLC))

Deviations:

GLP compliance:

yes (incl. QA statement)

Type of method:

HPLC estimation method

Media:

soil/sewage sludge

Specific details on test material used for the study:

Identification: FAT 40875/A TE
Appearance/Physical state: Dark red powder
Batch: BOP 05-17 (BS-ROE 1550 NIM 25+26+27)
Purity: 86.4% all organic components
Expiry date: 11th December, 2022
Storage conditions: Refrigeration (+2 to +8 degree celcius) - Protection from light

Radiolabelling:

not specified

Test temperature:

25 °C

Details on study design: HPLC method:

Instrument: High performance Liquid Chromatograph equipped with auto sampler, DAD and PC based data system
Detector type: variable wavelength (VW)
Column: Eclipse XDB-CN, 250 mm long, 4.6 cm i.d., 5µm
Column temperature: 25 °C
Mobile phase: 10 mM ammonium acetate (pH adjusted to 6): Acetonitrile (90:10 v/v)
Flow-rate: 1.0 mL/min
Injection volume: 10 µL
VW detector wavelength: 254 nm

DETERMINATION OF DEAD TIME
- Method: The dead time was determined by measuring the retention time of Sodium nitrate which was not retained on the column.

Analytical monitoring:

yes

Key result

Sample No.:

Type:

Koc

Value:

ca. 3.55

Key result

Sample No.:

Type:

log Koc

Value:

ca. 0.55

Key result

Sample No.:

Type:

Koc

Value:

ca. 10.96

Key result

Sample No.:

Type:

log Koc

Value:

ca. 1.04

Key result

Sample No.:

Type:

Koc

Value:

ca. 28.84

Key result

Sample No.:

Type:

log Koc

Value:

ca. 1.46

Key result

Sample No.:

Type:

Koc

Value:

ca. 36.31

Key result

Sample No.:

Type:

log Koc

Value:

ca. 1.56

Results of Adsorption Coefficient

Reference substance

Replication

Retention time (min.)

Mean Retention time (min.)

Capacity factor (k')

log k'

#log Koc

Sodium nitrate (Inert substance)

2.280

2.2800

2.280

Aniline

5.527

5.5235

1.4226

0.1531

1.47

5.520

Acetanilide

6.760

6.7635

1.9664

0.2937

1.53

6.767

Acetophenone

9.413

9.4130

3.1285

0.4953

1.59

9.413

Phenacetin

10.607

10.6070

3.6522

0.5626

1.70

10.607

Methyl benzoate

13.513

13.5165

4.9283

0.6927

1.80

13.520

RRT 1

2.380

2.3800

0.0439

-13575

0.55*

2.380

RRT 1.2

2.953

2.9530

0.2952

-0.5299

1.04*

2.953

RRT 2.3

5.707

5.693

5.6977

1.4990

0.1758

1.46*

RRT 3.0

7.713

7.160

7.3443

2.2212

0.3466

1.55*

Validity criteria fulfilled:

yes

Conclusions:

The adsorption coefficient of FAT 40875/A has been determined to be 3.55, 10.96, 28.84 and 36.31 for RRT1, RRT 1.2, RRT 2.3 and RRT 3.0 respectively. The respective Koc values were 0.55, 1.04, 1.46 and 1.56.

Executive summary:

The study on "FAT 40875/A TE: Laboratory Study of Estimation of Adsorption Coefficient on Soil and on Sewage Sludge" was sponsored by Huntsman Textile Effects, (Germany) GmbH, Rehlinger Strasse 1, 86462 Langweid, Germany.

The adsorption coefficient (Koc) of the test item FAT 40875/A TE was determined by HPLC method in accordance with OECD 121, Adopted: 22 January 2001 (OECD, 2001).

The adsorption coefficient (Koc) of the test item FAT 40875/A TE were 3.55, 10.96, 28.84 and 36.31 for RRT 1, RRT 1.2, RRT 2.3 and RRT 3.0 respectively. And the respective log Koc values were 0.55,1.04, 1.46 and 1.56.

Description of key information

The adsorption coefficient of FAT 40875/A was determined to be 3.55, 10.96, 28.84 and 36.31 for RRT1, RRT 1.2, RRT 2.3 and RRT 3.0 respectively. The respective Koc values were 0.55, 1.04, 1.46 and 1.56.

Key value for chemical safety assessment

Koc at 20 °C:: 1.56

Additional information

The adsorption coefficient (Koc) of the test item FAT 40875/A TE was determined by HPLC method in accordance with OECD 121, Adopted: 22 January 2001 (OECD, 2001).

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