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EC number: 700-673-7 | CAS number: 132638-45-0
Appearance / physical state / colour
Administrative data
Link to relevant study record(s)
- Endpoint:
- appearance / physical state / colour
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 11-08-2011 to 01-12-2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Visual observation of physical state and appearance by the testing laboratory
- Reason / purpose for cross-reference:
- reference to same study
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- inspected: May 2009; signature: October 2009
- Specific details on test material used for the study:
- The physical state and appearance of the test material were evaluated by visual observation. The test item was determined to be a colourless liquid, that may crystallize.
- Physical state at 20°C and 1013 hPa:
- liquid
- Form:
- liquid
- Remarks:
- Was stated as 'may crystallize'
- Colour:
- colourless
- Substance type:
- organic
- Conclusions:
- The physical state and appearance of the test material were evaluated by visual observation. The test item was determined to be a colourless liquid, that may crystallize.
- Executive summary:
The appearance of the test substance has been determined as:
Form: liquid that may crystallize
Colour: colourless
Applicant assessment indicates: that the test item may demonstrate some "liquid-crystal" behaviour with an intermediary phase below the melting point where a "pasty" liquid may be observed just below the isotropic phase (molten liquid), based on expert judgement and the weight of evidence. There was clear evidence of crystallization during the course of the study.
- Endpoint:
- appearance / physical state / colour
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 21-06-2013
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Visual observation of physical state and appearance by the testing laboratory
- Reason / purpose for cross-reference:
- reference to same study
- Principles of method if other than guideline:
- Visual observation of physical state and appearance by the testing laboratory
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- inspected: July 2012; signature: November 2012
- Physical state at 20°C and 1013 hPa:
- solid
- Form:
- crystalline
- Colour:
- Extremely pale yellow
- Substance type:
- organic
- Conclusions:
- The physical state and appearance of the test material were evaluated by visual observation. The test item was determined to be an extremely pale-yellow crystalline solid.
- Executive summary:
The appearance of the test substance has been determined as:
Form: solid, crystalline
Colour: extremely pale-yellow
Applicant assessment indicates: that the test item may demonstrate some "liquid-crystal" behaviour with an intermediary phase below the melting point where a "pasty" liquid may be observed just below the isotropic phase (molten liquid), based on expert judgement and the weight of evidence.
- Endpoint:
- appearance / physical state / colour
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 24-08-2012 to 29-03-2013
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Visual observation of physical state and appearance by the testing laboratory
- Reason / purpose for cross-reference:
- reference to same study
- Principles of method if other than guideline:
- Visual observation and experience on use and handling.
- GLP compliance:
- yes
- Physical state at 20°C and 1013 hPa:
- solid
- Form:
- solid: particulate/powder
- Colour:
- white
- Substance type:
- organic
- Conclusions:
- The physical state and appearance of the test material were evaluated by visual observation. The test item was determined to be a white powder (solid).
- Executive summary:
The appearance of the test substance has been determined as:
Form: solid, powder
Colour: white
Applicant assessment indicates: that the test item may demonstrate some "liquid-crystal" behaviour with an intermediary phase below the melting point where a "pasty" liquid may be observed just below the isotropic phase (molten liquid), based on expert judgement and the weight of evidence.
Referenceopen allclose all
Description of key information
Weight of evidence: State of the substance at 20 °C and 101.3 kPa: colourless to slightly pale-yellow crystalline solid, visual observation, 2017
Key value for chemical safety assessment
- Physical state at 20°C and 1013 hPa:
- solid
Additional information
The weight of evidence is that the test item is colourless to slightly pale-yellow crystalline solid, and that the test item may demonstrate some "liquid-crystal" behaviour with an intermediary phase below the melting point where a "pasty" liquid may be observed just below the isotropic phase (molten liquid), based on expert judgement. The test item has not been observed or is not expected to be a liquid at < 20 °C.
The test item has been described as a colourless liquid (that crystallized prior to testing), a white powder solid and an extremely pale-yellow crystalline solid under standard conditions of temperature and pressure. The colour of the substance may vary in available sources. No significant odour has been reported in available sources. The test item has a measured melting point of 52.3°C at 98.7 kPa and boiling point of 275 ± 2°C at 97.6 kPa in an available melting point test to EU Method A.1 under GLP. The test item has also been observed to be a crystalline solid at ambient conditions and a completely molten liquid at 64 °C in an available Relative Self-Ignition Temperature: Solids study to EU Method A.16 under GLP.
The test item under the CLP Regulation (EC) 1272/2008: Annex 1, section 1 concerning the definition of gases, liquids and solids, does not meet the criteria as a gas or liquid. Therefore should be considered as a solid.
For the classification procedure under Regulation
(EC) 1272/2008 expert judgment indicates that the intrinsic properties
of the test item indicate that the test item would be tested as a solid
and for specific evaluations (e.g. Flammability – ‘pasty substances’)
the test item would also generally be tested under the testing
strategies concerning solids. As applicable.
References:
1. UN Transport of Dangerous Goods Manual of Tests and Criteria, Sixth Edition (2015)
3. ECHA Guidance on Information Requirements and Chemical Safety Assessment (Chapter R.7a: Endpoint Specific Guidance, July 2017)
4. REACH Regulation (EC) 1907/2006, Annex VII, section 7.1
5. CLP Regulation (EC) 1272/2008, Annex I, section 1
6. ECHA Guidance on Application on the CLP Criteria, section 2.0 (v5.0, July 2017)
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.
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