Registration Dossier
Registration Dossier
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EC number: 274-434-6 | CAS number: 70210-37-6
Auto flammability
Administrative data
Link to relevant study record(s)
Description of key information
no auto-flammable
Key value for chemical safety assessment
Additional information
Acid Red 131 is produced and regularly used for many years in Europe, transported in various conditions and in various amounts. Evidence connected to the long experience in handling, use and transport of the substance confirms the non- self-ignition properties.
Thus, Acid Red 131 is expected to be an air-stable compound at room temperature over a prolonged period of time (days), without noticeable or undesirable reactions. In conclusion, for Acid Red 131 a potential for spontaneous ignition is not expected: Acid Red 131 can be considered as a no-pyrophoric and no-self-heating solid because it is liable to self-heat by reaction with air and without energy supply.
In addition, Acid Red 131 is soluble in water at room temperature and forms a stable solution with water.
No reactions with water or emission of flammable gases have ever been noted. Furthermore, for soluble dyes a reaction with water is not a desirable property from the use point of view. Therefore, Acid Red 131 cannot be classified as a substance that in contact with water may react generating flammable gases.
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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