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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 231-723-1 | CAS number: 7704-67-8
Guidance on Safe Use
Administrative data
First-aid measures
Inhalation: Remove to fresh air. If breathing becomes difficult, call a physician.
Skin Contact: Call a physician. Flush with copious amounts of water for at least 15 minutes. Remove contaminated clothing and shoes.
Eye Contact: Call a physician. Assure adequate flushing by separating the eyelids with fingers. Flush with copious amounts of water for at least 15 minutes.
Ingestion: Call a physician. Wash out mouth with water provided person is conscious.
In any case seek medical advice and call the nearest poison center.
Fire-fighting measures
Extinguishing Media: Carbon dioxide. Dry chemical powder. Appropriate foam.
Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Accidental release measures
Wear respirator, chemical safety goggles, rubber boots and heavy rubber gloves. Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pick up is complete.
Handling and storage
Handle the substance under strictly controlled conditions according to Article 18(4) of REACH Regulation. Rigorous containment should be achieved.
Handling: Wear appropriate approved respirator, chemical-resistant gloves, safety goggles, other protective clothing. Mechanical exhaust required. Safety shower and eye-bath. Do not breathe dust. Avoid contact with eyes, skin and doming. Avoid prolonged or repeated exposure. Wash thoroughly after handling.
Storage: Protect from light. Keep tightly closed.
Transport information
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Marine transport (UN RTDG/IMDG)
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Exposure controls / personal protection
The substance is used under strictly controlled conditions during its whole lifecycle as described under Article 18 (4) and Section 2.1 of the Guidance for Intermediates.
Effectiveness: The substance should be rigorously contained by technical means during its whole lifecycle and procedural and control technologies should be in place in order to minimise emissions and any resulting exposure as described under Article 18(4).
Personal protective equipment (PPE) should be used in cases of accidents and where waste is generated. The PPE may be also used as a good practice.
Eye/face protection: Safety goggles
Hand protection: Nitrile gloves
Skin protection: Protective suit
Respiratory protection: Dust mask P3
Stability and reactivity
Incompatibilities: None known.
Hazardous combustion or decomposition products: COx, NOx.
Hazardous polymerisation will not occur.
Disposal considerations
Incinerate in an approved facility. Observe all national and local environmental regulations.
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.
