Registration Dossier
Registration Dossier
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EC number: 204-429-6 | CAS number: 120-83-2
Appearance / physical state / colour
Administrative data
Link to relevant study record(s)
Description of key information
A key study is reported together with seven supporting references relating to the appearance, physical state, colour and odour of 2,4-dichlorophenol. 2,4-Dichlorophenol is a white crystalline solid / powder with a strong, unpleasant, characteristsic and penetrating phenolic type odour.
Key value for chemical safety assessment
- Physical state at 20°C and 1013 hPa:
- solid
Additional information
A key study is presented supported by seven additional references. These are summarised in the table below :-
| Appearance | Colour | Form | Odour | Reference | |
| Solid | White | No Data | Characteristic of phenolic compounds | Hutton L (2010) | |
| Solid | Not given | Crystalline hexagonal needles | Not given | CRC Handbook | |
| Solid | White | Crystalline | Characteristic and very penetrating | SIDS | |
| Solid | Colourless | Crystalline | Not given | Sax's Dangerous Properties of Industrial Materials | |
| Solid | White | No data | No data | Hawley's Condensed Chemical Dictionary | |
| Solid | Pale yellow | No data | No data | Ashford's Dictionary of Industrial Chemicals | |
| No data | No data | No data | Strong medicinal | US Coast Guard Department of Transportation | |
| Solid | Colourless | Crystalline | Characteristic of aromatic compounds | Chemical Safety Information from Intergovernmental Organisation |
The key study reports the substance to be a white solid at 20 °C and 25 °C with a characteristic phenolic odour.
Of the supporting references, the first is from a peer reviewed source (CRC Handbook of Chemsitry and Physics) and reports the substance as hexagonal needles of benzene.
The second reference from the SIDS (Screening Information Data Set) dossier reports that the substance is a white crystalline solid with a characteristic and penetrating odour.
An additional reference from the International Program on Chemical Safety reports the substance to be colourless crystals with a charcateristic odour.
Other references via toxnet ( http://toxnet.nlm.nih.gov ) report the substance to be a white to pale yellow solid with "strong medicinal" type odour.
Therefore, from practical experience and from literature references it is concluded that the appearance and physical state of the substance is a white crystalline solid / powder (which can be present as needles of benzene) with a strong, unpleasant, characteristsic and penetrating phenolic type odour.
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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