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EC number: 404-310-0 | CAS number: 10591-85-2 PERKACIT TBZTD; PERKACIT TBZTD PDR; PERKACIT TBZTD PDR-D; TBZD
- 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
Link to relevant study record(s)
- Endpoint:
- adsorption / desorption: screening
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 27 Jul.-20 Sep. 2010
- 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))
- Version / remarks:
- Estimation of the adsorption coefficient on soil and on sewage sludge of Luvomaxx TBzTD using HPLC accord-ing to OECD 121 resp. EU C.19
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- GLP-Bescheinigung / Statement of GLP Compliance (according to to § 19 Abs.1 Chemikaliengesetz)
- Type of method:
- HPLC estimation method
- Media:
- soil/sewage sludge
- Test temperature:
- Column temperature was room temperature, 25 ± 1 °C.
- Details on study design: HPLC method:
- HPLC
Pump: Dionex P580 Pump
Injector: Rheodyne 8125)
Column: Reprosil-Pur CN Dr. Maisch, 4.6 mm i.D., 125 mm length, particle size 3 µm
Detector: Dionex, UVD 170S
Program: ChromeleonTM, Version 6.80
Column temperature was room temperature, 25 ± 1 °C.
Program LogKoc.pgm for measurement of the test item
Chemicals
All chemicals used in the test were “analytical grade” or otherwise proved suitable.
Water
Demineralised Water, HPLC-grade, giving no interferences with the detector signal.
Also used was deionised water.
Methanol
CH3OH, HPLC grade, giving no interferences with the detector signal.
Mobile Phase
A mixture of 55% methanol and 45% water, isocratic, was used. The mix was produced by the pump.
Test Item Solution (Lot 20100803)
A solution of the test item was prepared by weighing 13.7 mg Luvomaxx TBzTD into a tared 10 mL volumetric flask containing 10 ml eluent (Lot 28072008), resulting in a solution with a concentration of 1370 mg/l which was used for the measurements. pH was 5.5 (measured with pH indicator paper.)
- Analytical monitoring:
- yes
- Details on sampling:
- Pre-Test
A solution of the test item in eluent with a concentration of 1370 mg/L was prepared and injected in order to check detectability and to find an approximate range for log KOC.
The solution gave four peaks at 1.25, 4.46, 7.60 and 15.17 min., respectively.
Based on this result, a suitable mix of reference items was chosen (with DDT as sub-stance with the highest log KOC and a retention time of approx. 30.1 minutes). The undi-luted test item solution was used for the determination of the log KOC of the test item under the same conditions as in the pre-test.
Seven reference items with different retention times were used to produce a calibration curve, since retention time on cyanopropyl columns and KOC are correlated. The reference items were chosen on behalf of the retention time of the test item Luvomaxx TBzTD on the column.
First, a solution of the reference items was analysed three times with HPLC, then a solu-tion of the test item (three times) and finally three more times the solution with the refer-ences. - Details on matrix:
- Not avalaible
- Details on test conditions:
- 6.3.4 Test Item Solution (Lot 20100803)
A solution of the test item was prepared by weighing 13.7 mg Luvomaxx TBzTD into a tared 10 mL volumetric flask containing 10 ml eluent (Lot 28072008), resulting in a solution with a concentration of 1370 mg/l which was used for the measurements. pH was 5.5 (measured with pH indicator paper.)
Test System
HPLC
Pump: Dionex P580 Pump
Injector: Rheodyne 8125)
Column: Reprosil-Pur CN Dr. Maisch, 4.6 mm i.D., 125 mm length, particle size 3 µm
Detector: Dionex, UVD 170S
Program: ChromeleonTM, Version 6.80
Column temperature was room temperature, 25 ± 1 °C.
The following instruments and devices were used in the performance of the study:
• Adjustable Pipettes with one-way tips Rainin ® LAUS No. 16, 20, 30
• Analytical scale Mettler Toledo AB 184 SA
• Standard Laboratory Glassware - Sample No.:
- #1
- Duration:
- 1.254 min
- Initial conc. measured:
- 1 370 other: mg/l A solution of the test item was prepared by weighing 13.7 mg Luvomaxx TBzTD into a tared 10 mL volumetric flask containing 10 ml eluent (Lot 28072008), resulting in a solution with a concentration of 1370 mg/l which was used for the measurements.
- pH:
- 5.5
- Sample No.:
- #2
- Duration:
- 4.46 min
- Initial conc. measured:
- 1 370 other: A solution of the test item was prepared by weighing 13.7 mg Luvomaxx TBzTD into a tared 10 mL volumetric flask containing 10 ml eluent (Lot 28072008), resulting in a solution with a concentration of 1370 mg/l which was used for the measurements.
- pH:
- 5.5
- Sample No.:
- #3
- Duration:
- 7.6 min
- Initial conc. measured:
- 1 370 other: A solution of the test item was prepared by weighing 13.7 mg Luvomaxx TBzTD into a tared 10 mL volumetric flask containing 10 ml eluent (Lot 28072008), resulting in a solution with a concentration of 1370 mg/l which was used for the measurements.
- pH:
- 5.5
- Sample No.:
- #4
- Duration:
- 15.17 min
- Initial conc. measured:
- 1 370 other: A solution of the test item was prepared by weighing 13.7 mg Luvomaxx TBzTD into a tared 10 mL volumetric flask containing 10 ml eluent (Lot 28072008), resulting in a solution with a concentration of 1370 mg/l which was used for the measurements.
- pH:
- 5.5
- Computational methods:
- Not avalaible/applicable
- Type:
- log Koc
- Value:
- 2.422
- Temp.:
- 25 °C
- Remarks on result:
- other: Log KOC + sd =2.422 ± 0.002
- Type:
- log Koc
- Value:
- 3.422
- Temp.:
- 25 °C
- Remarks on result:
- other: Log KOC + sd= 3.422 ± 0.002
- Key result
- Type:
- log Koc
- Value:
- 4.608
- Temp.:
- 25 °C
- Remarks on result:
- other: Log KOC + sd= 4.608 ± 0.001
- Details on results (HPLC method):
- Calibration log k’ vs. log KOC
The calibration function was drawn up from the six measurements of the capacity factors of the reference items. By plotting the (known) log KOC values of the reference items against the mean log capacity factors and performing linear regression, a calibration func-tion was obtained.
Calculation of log KOC
With the calculated capacity factors for the test item, each log KOC from the three determi-nations was calculated.
Finally, mean and standard deviation of the log KOC were calculated.
Capacity Factor k’
The capacity factor k´ for every peak was calculated as follows:
K= tr-to/ to
with tr retention time
to dead time (retention time of sodium nitrate) - Adsorption and desorption constants:
- not avalaible
- Validity criteria fulfilled:
- yes
- Remarks:
- No observations were made which might give doubts concerning the validity of the study outcome.
- Conclusions:
- Although area is not necessarily correlated to absolute concentration if a UV detector is used, it is believed that the test item of Luvomaxx TBzTD consists mainly of the fourth peak, indicating that the log Koc should be regarded as 4.608.
No observations were made which might give doubts concerning the validity of the study outcome. - Executive summary:
The adsorption/desorption potential of TBzTD was determined according to an OECD 121 testing.
Based on the results, the log Koc of TBzTD is 4.6.
Reference
Findings and Results
Reference Items
Measurement Data
The retention times which were found for the reference items are presented in the following table.
Table Retention Times Reference Items
Compound |
RT1 |
RT2 |
RT3 |
RT4 |
RT5 |
RT6 |
|
min. |
min. |
min. |
min. |
min. |
min. |
Sodium nitrate |
1.306 |
1.308 |
1.302 |
1.260 |
1.280 |
1.280 |
Phenole |
3.032 |
3.037 |
3.036 |
3.032 |
3.030 |
3.032 |
Methylbenzoate |
3.433 |
3.444 |
3.444 |
3.441 |
3.440 |
3.442 |
3,5-Dinitrobenzamide |
3.623 |
3.622 |
3.624 |
3.623 |
3.621 |
3.621 |
Naphthaline |
5.186 |
5.182 |
5.188 |
5.199 |
5.212 |
5.214 |
1,2,3-Trichlorbenzene |
6.442 |
6.432 |
6.461 |
6.482 |
6.512 |
6.514 |
Pyrazophos |
8.707 |
8.698 |
8.749 |
8.790 |
8.779 |
8.822 |
4,4’-DDT |
29.560 |
29.617 |
29.383 |
30.085 |
30.966 |
31.081 |
Calculated Values
The capacity factors k’ were calculated from the retention times using the equation stated in chapter 8.1. The values are given in the following table.
Table9.1-b Mean Retention Times, Capacity Factors Reference Items
Compound |
RT |
RT |
RT |
k’ |
|
min. |
min. |
% |
|
Sodium nitrate |
1.289 |
0.019 |
1.480 |
0.0000 |
Phenole |
3.033 |
0.003 |
0.089 |
1.3525 |
Methylbenzoate |
3.441 |
0.004 |
0.119 |
1.6686 |
3.5-Dinitrobenzamide |
3.622 |
0.001 |
0.033 |
1.8095 |
Naphthaline |
5.197 |
0.014 |
0.265 |
3.0306 |
1,2,3-Trichlorbenzene |
6.474 |
0.035 |
0.538 |
4.0211 |
Pyrazophos |
8.758 |
0.049 |
0.556 |
5.7923 |
4,4’-DDT |
30.115 |
0.742 |
2.463 |
22.3573 |
Log KOC/ log k’
The log KOCvalues of the reference items were taken from the guideline. The values for log k’ and log KOCof the reference items are presented in the following table:
Table9.1-c Log k’ and log KOCof Reference Items
Compound |
log k’ |
log KOC |
Phenole |
0.1311 |
1.32 |
Methylbenzoate |
0.2223 |
1.80 |
3,5-Dinitrobenzamide |
0.2575 |
2.31 |
Naphthaline |
0.4815 |
2.75 |
1,2,3-Trichlorbenzene |
0.6043 |
3.16 |
Pyrazophos |
0.7628 |
3.65 |
4,4’-DDT |
1.3494 |
5.63 |
Correlation Results
Dead time is 1.289 ± 0.019 minutes, with a RSD of 1.48%.
The RSD of the retention times of the reference items lay all below1 % except for Sodium nitrate and DDT, which have RSDs of retention times of 1.48 and 2.46%, respectively.
Equation of the regression:
log k’ = 0.2934 * log KOC–
0.32
with a coefficient of determination r2= 0.986.
Description of key information
Key value for chemical safety assessment
- Koc at 20 °C:
- 40 551
Additional information
The adsorption/desorption potential of TBzTD was determined according to an OECD 121 testing.
Based on the results, the log Koc of TBzTD is 4.6.
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