Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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: 460-110-3 | CAS number: 797751-43-0 WASOX-MMAC2
Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- March 7, 2005
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- According to OECD Guideline 115, with GLP.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- ring method
- Key result
- Surface tension:
- 65.643 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Remarks on result:
- other: Standard deviation: 0.076
- Conclusions:
- The mean surface tension of the degradation products of the test substance was 65.643 mN/rn, standard deviation 0.076, at a temperature of 20.0 °C.
- Executive summary:
The Surface Tension assay performed according to OECD guideline 115 (ring method) on Wasox-MMAC2 shows that the mean surface tension of the degradation products of the test substance is 65.643 mN/m at a temperature of 20.0 °C.
Reference
The test substance is composed of several compounds, including the 3 main components MMAC2, MAC3 and MM2AC. The 3 components act uniformly as hardeners for silicone sealing masses. They polymerise, triggered by hydrolysis. The test substance degrades rapidly with a half-life time of <1 hour at 25 °C. Therefore the surface tension of the degradation products of the test substance was determined.
Surface tension of water:
tensiometer readings (mN/m) |
mean (mN/m) |
calculated |
71.5 |
71.5 |
1.017 |
71.6 |
||
71.5 |
Surface tension of the test substance solution
|
age of the surface of the test substance solution |
|
|
|
1 |
02:00 |
64.9 |
66.00 |
65.55 |
2 |
02:30 |
65.0 |
66.11 |
65.66 |
3 |
05:50 |
65.0 |
66.11 |
65.66 |
4 |
04:00 |
65.1 |
66.21 |
65.77 |
5 |
04:15 |
65.0 |
66.11 |
65.66 |
6 |
04:30 |
64.9 |
66.00 |
65.55 |
7 |
04:45 |
65.0 |
66.11 |
65.55 |
|
|
mean of determinations |
65.64 |
|
|
|
SD |
0.076 |
|
Description of key information
Key study: OECD Guideline 115 and GLP. The mean surface tension of the degradation products of the test substance Wasox-MMAC2 is 65.643 mN/m at a temperature of 20.0 °C.
Key value for chemical safety assessment
- Surface tension:
- 65.643
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
Key study: The Surface Tension assay performed according to OECD guideline 115 (ring method) and GLP with test item Wasox-MMAC2 shows that the mean surface tension of the degradation products of the test substance is 65.643 mN/m at a temperature of 20.0 °C.
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.
