Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 405-430-6 | CAS number: 65143-89-7
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Adsorption / desorption
Administrative data
- Endpoint:
- adsorption / desorption
- Remarks:
- adsorption/desorption
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1995
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP, guideline study
Cross-referenceopen allclose all
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to other study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 995
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: OECD 106 (screening version): (Screening version): "Adsorption/Desorption, adopted May 12, 1981.
- Deviations:
- no
- Remarks:
- Not specified in report
- Principles of method if other than guideline:
- Not applicable
- GLP compliance:
- yes
- Type of method:
- batch equilibrium method
- Media:
- soil
Test material
- Reference substance name:
- -
- EC Number:
- 405-430-6
- EC Name:
- -
- Cas Number:
- 65143-89-7
- Molecular formula:
- UVCB
- IUPAC Name:
- Reaction mass of Benzene sulfonic acid, hexadecyl(sulfophenoxy)-,disodium salt and Benzene sulfonic acid, - oxibis[hexadecyl]-, disodium salt
- Details on test material:
- DOWFAX 8390-D
Reference: Batch 9401205-50A
Composition: Active ingredient minimal 92%
Appearance: Tan powder
Description: Hexadecyl (sulfophenoxy) benzenesulfonic acid disodium salt + Hexadecyl (hexadecylsulfophenoxy) benzene- sulfonic acid disodium salt
Constituent 1
- Specific details on test material used for the study:
- Details on properties of test surrogate or analogue material (migrated information):
No data - Radiolabelling:
- no
Study design
- Test temperature:
- 20C
HPLC method
- Details on study design: HPLC method:
- Not applicable
Batch equilibrium or other method
- Analytical monitoring:
- yes
- Details on sampling:
- All soil samples were sieved (2 mm size, Emergo B.V., Landsmeer, The Netherlands) and air dried.
Solvent: 0.01 M Calcium Chloride (p.a. Merck, Darmstadt, Germany) in double distilled water.
Each soil was recognized by the international guideline (OECD).
Sample pretreatment
Samples of the supernatant of approximately 10 ml were taken and centrifuged for 5 minutes at 3500 g and 20°C. Each resultant clear supernatant was analysed without further pretreatment.
- Details on matrix:
- TEST SYSTEM AND RATIONALE
For the study, three different soils differing in pH, clay-content, organic matter content and thus in cation exchange capacity were used:
( classification accordi.ng to NEN 5104, 1989)
Soil I : strong silty sand (Wageningen, The Netherlands)
Soil II : strong sandy loam (Kloosterburen, The Netherlands)
Soil III : weak sandy clay (Fann (near Luzern), Switzerland)
Parameter Soil I Soil II Soil III
Horizon 0-30 cm 0-30 cm 0-20 cm
Clay (<2 um) 6.0% 13.6% 17.8%
Silt (2-50um) 11.1% 39.8% 28.6%
Sand (50-2000 um) 81.3% 41.7% 53.6%
Dry weight content 99.6% 99.9% 98.7%
Organic bound carbon 1.4% 1.8% 1.35%
Carbonate as CaC03 0.2% 3.1% 0.2%
pH 4.0 7.5 6.0
Cation exchange
capacity (meqI100 g) 4.7 10.9 13.2
Extractable cations
(meqI100 g):
Ca 1.33 9.06 8.0
Mg 0.17 1.00 1.1
Na <0.01 0.15 0.1
K 0.23 0.96 0.2
H 5.5 0.6 4.9
All soil samples were sieved (2 mm size, Emergo B.V., Landsmeer, The Netherlands) and air dried.
Solvent: 0.01 M Calcium Chloride (p.a. Merck, Darmstadt, Germany) in double distilled water.
Each soil was recognized by the international guideline (OECD). - Details on test conditions:
VALIDATION OF THE TEST PROCEDURE
The test method as outlined in this report is validated periodially , using 2,4-dichlorophenoxyacetic acid. The results are in accordance with
the NOTOX criteria of the validation.
PERFORMANCE OF THE TEST
Test solution preparation
A 94.4 E-3 g / l solution of DOWFAX 8390-D in 0.01 M CaCl2 was prepared.
Soil equilibration
Prior to the adsorption test, the soils I, II and III were equilibrated with twice their weight of water before use. Therefore, an amount of 2 g
of each soil was weighed into each of three 20 ml glass vials . To each vial , an accurately weighed amount of 4 ml double distilled water was
added. The vials were securely closed and gently tumbled for 76.5 hours at room temperature. Thereafter, the vials were centrifuged for
5 minutes at 170 g and 20°C and most o f the supernatants were removed (and weighed) .
Adsorption screeninq test
For soil I, II and III, an accurately weighed amount of 10 ml of the test solution was added to two of the equilibrated soil samples. An accurately
weighed amount of 10 ml 0.01 M CaCl2 was added to the third equilibrated soil sample. An additional blank test was performed without soil , using
10 ml of the test solution.
All vials were gently tumbled for 16 hours at room temperature. Subsequently, the vials were centrifuged for 5 minutes at 170 g and 20°C.
The supernatants were pipetted off as much as possible and weighed. The supernatant of the blank without soil was not weighed.
Desorption screeninq test
The amount of adsorption to soil I, II and III was > 25%. Therefore, the screening test desorption was performed for each o f the soil samples from
the adsorption test. To each soil, 10 ml 0.01 M CaC12 was added. The vials were securely closed and gently tumbled for 16 hours at room temperature. Subsequently, the vials were centrifuged for 5 minutes at 170 g and 20°C and each supernatant was pipetted off . The above mentioned procedure was repeated once, using a fresh CaCl2 solution.
Duration of adsorption equilibrationopen allclose all
- Sample No.:
- #1
- Duration:
- 16 h
- Initial conc. measured:
- 932.6 other: ug
- Temp.:
- 20 °C
- Sample No.:
- #2
- Duration:
- 16 h
- Initial conc. measured:
- 930.99 other: ug
- Temp.:
- 20 °C
- Sample No.:
- #3
- Duration:
- 16 h
- Initial conc. measured:
- 933.86 other: ug
- Temp.:
- 20 °C
- Sample No.:
- #4
- Duration:
- 16 h
- Initial conc. measured:
- 933.84 other: ug
- Temp.:
- 20 °C
- Sample No.:
- #5
- Duration:
- 16 h
- Initial conc. measured:
- 932.35 other: ug
- Temp.:
- 20 °C
- Sample No.:
- #6
- Duration:
- 16 h
- Initial conc. measured:
- 942.41 other: ug
- Temp.:
- 20 °C
Duration of desorption equilibrationopen allclose all
- Sample no.:
- #1
- Duration:
- 16 h
- Conc. of adsorbed test mat.:
- 98.9 other: %
- Temp.:
- 20 °C
- Sample no.:
- #2
- Duration:
- 16 h
- Conc. of adsorbed test mat.:
- 99.14 other: %
- Temp.:
- 20 °C
- Sample no.:
- #3
- Duration:
- 16 h
- Conc. of adsorbed test mat.:
- 99.53 other: %
- Temp.:
- 20 °C
- Sample no.:
- #4
- Duration:
- 16 h
- Conc. of adsorbed test mat.:
- 99.48 other: %
- Temp.:
- 20 °C
- Sample no.:
- #5
- Duration:
- 16 h
- Conc. of adsorbed test mat.:
- 99.17 other: %
- Temp.:
- 20 °C
- Sample no.:
- #6
- Duration:
- 16 h
- Conc. of adsorbed test mat.:
- 99.22 other: %
- Temp.:
- 20 °C
- Computational methods:
- Adsorption screeninq test :
The percentage o f the test substance adsorbed was calculated as:
A=100 x (G - (Ce x V0)/G = 100x(X/G)
The adsorption coefficient for the determination was calculated as:
K' = (X/M)/Ce
The adsorption coefficient was also calculated as a function of the organic carbon content of the soil :
K'oc = (K'/ % organic carbon) x 100
Desorption screening test :
The percentage of the adsorbed test substance which was desorbed was calculated as:
D = 100 x (( C1 + C2) x V - (V0 - V) x Ce) / X
The percentage of the adsorbed test substance which was not desorbed was calculated as:
R = 100 x (G - (Ce + C 1 + C2) x V) / X
where:
G= quantity of material employed (ug)
Ce= concentration of test substance remaining in the solution after adsorption (ug/ml)
V0= original volume of solution employed (ml)
M= dry weight of soil employed (g)
C1= concentration of test substance in the solution after the first wash (ug/ml)
C2= concentration of test substance in the solution after the second wash (ug/ml)
V= volume of solution obtained after the adsorption step (ml)
X= amount of test substance adsorbed (ug)
Results and discussion
Adsorption coefficientopen allclose all
- Type:
- Koc
- Value:
- >= 34 900 - <= 64 300
- Type:
- log Koc
- Value:
- >= 4.54 - <= 4.81
Results: HPLC method
- Details on results (HPLC method):
- Not applicable
Results: Batch equilibrium or other method
- Adsorption and desorption constants:
- Not determined
- Recovery of test material:
- Not determined
- Concentration of test substance at end of adsorption equilibration period:
- 3.95E-1 to 9.63E-1
- Concentration of test substance at end of desorption equilibration period:
- 2.76E-1 to 6.89E-1
- Transformation products:
- not specified
- Details on results (Batch equilibrium method):
- In the HPLC chromatograms of DOWFAX 8390-D, one large peak at 9.4 minutes and several smaller peaks were observed. The large peak derived from the main component whereas the smaller peaks derived from minor components. The peak at 7.4 minutes was the greatest minor component.
The chromatograms of the blank soils ( test substance omitted) did not show any peak with the same retention as the test substance.
The amount of test substance recovered from the blank without soil was 101%. Because this value was considered to fall within the reproducibility
of the method of chemical analysis, no correction-factor was applied on the quantity of material employed (G).
The concentration in some of the pretreated samples from the desorption test was below the limit of detection (0.276E-3 g/l) .
The individual measurements of the main component of each soil sample from both the adsorption and desorption (screening) test are summarized i n Table 1.
Table 1 Individual measurements of the main component of the adsorption/desorption screening test of DOWFAX 8390-D at room temperature.
........................................................................
IA IB IIA IIB IIIA IIIB
G [ug] 932.60 930.99 933.86 933.84 932.35 942.41
Ce [ug/ml] 9.63e-01 7.51e-01 3.95e-01 4.39e-01 6.87e-01 6.48e-01
VO [ ml ] 10.63 10.64 11.16 11.16 11.23 11.35
M [g] 1.962 2.028 2.034 1.984 2.008 2.048
A [%] 98.90 99.14 99.53 99.48 99.17 99.22
K ' 4.88e+02 6.09e+02 1.16e+03 1.07e+03 6.71e+02 7.05e+02
K'oc 3.49e+04 4.35e+04 6.43e+04 5.93e+04 4.97e+04 5.22e+04
v [ml] 9.83 9.80 9.86 9.83 9.65 9.77
C 1 [ug/ml] 6.59e-01 5.86e-01 2.76e-01 2.76e-01 4.57e-01 4.25e-01
C2 [ug/ml] 6.89e-01 5.29e-01 2.76e-01 2.76e-01 4.71e-01 4.18e-01
D [%] 1.35 1.12 0.53 0.52 0.85 0.77
R [%] 98.65 98.88 99.47 99.48 99.15 99.23
G = Quantity of material employed (ug)
Ce = Concentration of test substance remaining in the solution after adsorption (ug/ml)
Vo = Original volume of solution employed (ml)
M = Dry weight of soil employed (g)
A = Adsorption (%)
K ' = Adsorption coefficient
K'oc = K ' as function of organic carbon content .
V = Volume of solution obtained after the adsorption step (ml)
C1= Concentration of test substance in the solution after the first wash (ug/ml)
C2 = Concentration of test substance in the solution after the second wash (ug/ml)
D = Desorption (%)
R = Not desorbed (%)
The average values of A, D, R, K' and K'oc of the main component are shown in Table 2.
Table 2 Results of the adsorption/desorption (screening) test of the main-component of DOWFAX 83904 at room temperature.
Soil I Soil II Soil III
A [% ] 99.0 99.5 99.2
D [%] 1.2 0.5 0.8
R [%] 98.8 99.5 99.2
K' 548 1112 688
K'oc 392 E2 618 E2 509 E2 - Statistics:
- No data
Any other information on results incl. tables
None
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not specified
- Conclusions:
- The results can be summarized as follows: The test material DOWFAX* 8390-D surfactant attained 99.0, 99.5 and 99.2 % adsorption to soil I, II and Ill, respectively; the corresponding desorption values have been determined to be 1.2, 0.5 and 0.8 %. These data correpond to the K'oc values (adsorption coefficients as a function of the organic carbon content of the soils) of 392E2 , 618E2 and 509E2 for soil type I, II and Ill, respectively.
- Executive summary:
DOWFAX* 8390-D surfactant is the dry form of a diphenyloxide based anionic surfactant which consists of disodium di- and monohexadecyldiphenyloxide disulfonate. The material was assayed for soil adsorption/desorption using a screening test according to OECD Guideline Number 106 (adopted May 12, 1981).
For the investigation of the adsorption behaviour three different soils were used: strong silty sand (pH 4.0, 6.0 % clay, 1.4 % organic matter), strong sandy loam (pH 7.5, 13.6 % clay, 1.8 % organic matter) and weak sandy clay (pH 6.0, 17.8 % clay, 1.35 % organic matter). The soils were first equilibrated with water. To 2 g of each equilibrated soil 10 ml of an aqueous solution of the test material (94.4 mg/l in 0.01 M CaCl2) was added. The following two controls were included: CaCl2, solution without test compound and test solution without soil. Incubation took place at room temperature with gentle tumbling over a period of 16 hours. Subsequently, the
vials were centrifuged (5 min., 170 x g) and the supernatants pipetted off. The amount of residual test material still present in the supernatant after incubation (adsorption test) was analyzed with the help of High Performance Liquid, Chromatography (HPLC). To follow the desorption of the test material 10 ml of 0.01 M CaCl2, solution was added to the treated soil samples. The vials were again tumbled for 16 hours at room temperature followed by centrifugation (5 min., 170 x g) and HPLC analysis of the supernatants.
The results can be summarized as follows: The test material DOWFAX* 8390-D surfactant attained 99.0, 99.5 and 99.2 % adsorption to soil I, II and Ill, respectively; the corresponding desorption values have been determined to be 1.2, 0.5 and 0.8 %. These data correpond to the K'oc values (adsorption coefficients as a function of the organic carbon content of the soils) of 392E2 , 618E2 and 509E2 for soil type I, II and Ill, respectively.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.