Registration Dossier
Registration Dossier
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EC number: 277-040-2 | CAS number: 72927-99-2
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:
- 2014
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study without detailed documentation
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- plate method
- Surface tension:
- 52.661 mN/m
- Temp.:
- 20 °C
- Conc.:
- 0.25 mg/L
- Conclusions:
- In conclusion, the surface tension of FAT 41001/H TE was determined to be 52.661 mN/m at room temperature ca 20 °C. The variation of specification factor was 0.003488 mN/m.
- Executive summary:
The determination of the surface tension of the test item was based on OECD Guideline No. 115: “Surface Tension of Aqueous Solutions” (1995) and on the EEC Directive 92/69, Part A, methods for the determination of physio-chemical properties, A5
“Surface Tension”, EEC Publication No. L383, December 1992.
In conclusion, the surface tension of FAT 41001/H TE was determined to be 52.661 mN/m at room temperature ca 20 °C. The variation of specification factor was 0.003488 mN/m.
- Endpoint:
- surface tension
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study without detailed documentation
- Justification for type of information:
- REPORTING FORMAT FOR THE ANALOGUE APPROACH
1. HYPOTHESIS FOR THE ANALOGUE APPROACH
This read-across is based on the hypothesis that the source and the target substance have very similar physicochemical and (eco)toxicological properties because their chemical structures are nearly identical. An analogue approach has thus been employed. The target substance is the meta-isomer of the dye Reactive Blue 049, where the sulphonate group is bound at the meta-position of the aminobenzene moiety. The source chemical is the reaction mass of both the meta-isomer and the para-isomer of Reactive Blue 049.
The presence of sulphonate groups make both dyes highly water soluble and therefore less critical for human health and environmental issues. Based on their chemical similarity, similar properties are expected in both humans and the environment.
2. SOURCE AND TARGET CHEMICAL(S)
Source: Reactive Blue 49 meta/para (CAS# 72214-18-7 / EC# 276-481-8)
Target: Reactive Blue 49 meta (CAS# 72927-99-2 / EC# 277-040-2)
3. ANALOGUE APPROACH JUSTIFICATION
see attachment under 4.2 Melting point / freezing point - Reason / purpose for cross-reference:
- read-across source
- Key result
- Surface tension:
- 52.661 mN/m
- Temp.:
- 20 °C
- Conc.:
- 0.25 mg/L
- Conclusions:
- In conclusion, the surface tension was determined to be 52.661 mN/m at room temperature ca 20 °C. The variation of specification factor was 0.003488 mN/m.
- Executive summary:
The determination of the surface tension of the test item was based on OECD Guideline No. 115: “Surface Tension of Aqueous Solutions” (1995) and on the EEC Directive 92/69, Part A, methods for the determination of physio-chemical properties, A5
“Surface Tension”, EEC Publication No. L383, December 1992.
In conclusion, the surface tension was determined to be 52.661 mN/m at room temperature ca 20 °C. The variation of specification factor was 0.003488 mN/m.
Referenceopen allclose all
Description of key information
The surface tension was determined to be 52.661 mN/m at ca. 20°C. Hence the test material has surface active properties.
Key value for chemical safety assessment
- Surface tension:
- 52.661
- in mN/m at 20°C and concentration in mg/L:
- 0.25
Additional information
The determination of the surface tension of the source substance was based on OECD Guideline No. 115. The test item was measured using a 0.25 % (w/w) solution. The surface tension was determined to be 52.661 mN/m at ca. 20 °C.
The structurally related target substance will have a similar surface tension and will also show surface-active properties.
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.
