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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 256-260-2 | CAS number: 46235-93-2
Guidance on Safe Use
Administrative data
First-aid measures
Description of first aid measures
Inhalation: Move to fresh air. Oxygen or artificial respiration if needed. Consult a physician.
Skin contact: IMMEDIATELY get under a safety shower. Remove contaminated clothing. Wash affected skin areas thoroughly with soap and water for 15-30 minutes or until all traces of chemical are removed. Get prompt medical attention. Wash contaminated clothing before re-use. Do not take clothing home to be laundered. Discard contaminated shoes, belts, and other articles made of leather.
Eye contact: Immediately flush eye(s) with plenty of water for 15-30 minutes. Get prompt medical attention.
Ingestion: If swallowed, DO NOT induce vomiting. Neutralize by giving milk (not to exceed 250 ml/8 oz) or egg whites. Otherwise, wash out mouth with water and dilute by giving small quantites of water (not to exceed 250 ml/8 oz) to drink. Never give anything by mouth to an unconscious person. If vomiting occurs spontaneously, keep airway clear. NOTE: This is a corrosive material. Do not administer any other first aid before obtaining the advice of a physician.
Indication of any immediate medical attention and special treatment needed
Notes to physician: MATERIAL IS CORROSIVE. It may not be advisable to induce vomiting. Possible mucosal damage may contraindicate the use of gastric lavage. Measures against circulatory shock and convulsions maybe necessary.
Fire-fighting measures
Suitable extinguishing media: Water spray Dry powder Foam Alcohol-resistant foam Carbon dioxide (CO2)
Special hazards arising from the substance or mixture
Hazardous combustion products: During a fire, irritating and highly toxic gases and/or fumes may be generated during combustion or decomposition.
Unusual Fire and Explosion Hazards: Heated material can form flammable or explosive vapors with air. Heat can cause polymerization. Heated containers can explode.
Advice for firefighters
Fire Fighting Procedures: EXPLOSION HAZARD. Fight advanced fires from a protected location. Cool containers/tanks with water spray.
Special protective equipment for firefighters: Wear self-contained breathing apparatus and protective suit.
Accidental release measures
Personal precautions, protective equipment and emergency procedures: Use personal protective equipment.
Environmental precautions: CAUTION: Keep spills and cleaning runoff out of municipal sewers and open bodies of water. Do not allow material to contaminate ground water system.
Methods and materials for containment and cleaning up: Remove all sources of ignition. Contain spills immediately with inert materials (e.g., sand, earth). Transfer liquids and solid diking material to separate suitable containers for recovery or disposal. Contaminated monomer may be unstable. Add inhibitor to prevent polymerization. Absorbent can act as a contaminant (removes inhibitor) in liquid monomer. Avoid freestanding monomer with absorbent or add inhibitor to stabilize. Dispose of promptly.
Handling and storage
Precautions for safe handling: This material is corrosive. Ground all metal containers during storage and handling.
Conditions for safe storage: Store in cool place. Keep away from direct sunlight. Material can burn; limit indoor storage to approved areas equipped with automatic sprinklers. Ground all metal containers during storage and handling. This product contains inhibitor to stabilize it during shipment and storage. The effectiveness of the inhibitor is dependent on the presence of dissolved oxygen. In order to maintain sufficient dissolved oxygen in the liquid to avoid polymerization, the monomer must always be stored with a vapor space oxygen concentration of 5% to 21% (air). If the material is stored longer than six months (from date of manufacture) in a closed container, replenish the vapor space with fresh air to avoid depletion of the dissolved oxygen. Use monomer within 1 year to avoid loss of stability or risk of polymerization. Keep container tightly closed.
Transport information
Land transport (UN RTDG/ADR/RID)
- UN number:
- UN 3265
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Inland waterway transport (UN RTDG/ADN(R))
- UN number:
- UN 3265
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Marine transport (UN RTDG/IMDG)
- UN number:
- UN 3265
Shipping information
- Proper shipping name and description:
- CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S. (Methacrylate ester)
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Air transport (UN RTDG/ICAO/IATA)
- UN number:
- UN 3265
Shipping information
- Proper shipping name and description:
- CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S. (Methacrylate ester)
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Exposure controls / personal protection
Exposure controls
Engineering controls: Use explosion-proof local exhaust ventilation with a minimum capture velocity of 100 ft/min (0.5 m/sec) at the point of vapor evolution. Refer to the current edition of Industrial Ventilation: A Manual of Recommended Practice published by the American Conference of Governmental Industrial Hygienists for information on the design, installation, use, and maintenance of exhaust systems.
Protective measures: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower.
Individual protection measures
Eye/face protection: Use chemical splash goggles and face shield (ANSI Z87.1 or approved equivalent). Eye protection worn must be compatible with respiratory protection system employed.
Skin protection
Hand protection: Chemical-resistant gloves should be worn whenever this material is handled. The glove(s) listed below may provide protection against permeation. (Gloves of other chemically resistant materials may not provide adequate protection): Butyl-rubber. Rinse and remove gloves immediately after use. Wash hands with soap and water. Gloves should be removed and replaced immediately if there is any indication of degradation or chemical breakthrough. NOTE: Material is a possible skin sensitizer. Reference: Methacrylate Producers Association, Inc., "Chemical- Protective Gloves for Methacrylic Acid and its Esters", September 1998.
Other protection: Use chemically resistant apron or other impervious clothing to avoid prolonged or repeated skin contact. Where splashing is possible, full chemically resistant protective clothing (e.g. acid suit) and boots are required.
Respiratory protection: A respiratory protection program meeting OSHA 1910.134 and ANSI Z88.2 requirements or equivalent must be followed whenever workplace conditions warrant a respirator's use. None required if airborne concentrations are maintained below the exposure limit listed in Exposure Limit Information. Up to 10 times the exposure limit: Wear a properly fitted NIOSH approved (or equivalent) half-mask, air-purifying respirator. Up to 1000 ppm organic vapor: Wear a properly fitted NIOSH approved (or equivalent) full-facepiece, air-purifying respirator, OR full-facepiece, airline respirator in the pressure demand mode. Above 1000 ppm organic vapor or Unknown: Wear a properly fitted NIOSH approved (or equivalent) self-contained breathing appartus in the pressure demand mode, OR full-facepiece, airline respirator in the pressure demand mode with emergency escape provision. Air-purifying respirators should be equipped with NIOSH approved (or equivalent) organic vapor cartridges and N95 filters. If oil mist is present, use R95 or P95 filters.
Stability and reactivity
Possibility of hazardous reactions: Inhibitor is added to this product to prevent polymerization. However, this material can undergo hazardous polymerization. Excessive aging, heat, contamination with polymerization catalysts, oxygen-free atmosphere, inhibitor depletion or ultraviolet light (sunlight) may cause polymerization. An uncontrolled polymerization may produce a rapid release of energy with the potential for an explosion of unvented closed containers.
This material is considered stable under specified conditions of storage, shipment and/or use.
Incompatible materials: Avoid contact with the following: Acids Bases Oxidizing agents Reducing agents. UV light free radical initiators organic peroxides
Hazardous decomposition products: There are no known hazardous decomposition products for this material.
Disposal considerations
Disposal methods: After the addition of excess inhibitor, incinerate liquid and contaminated diking material in accordance with local, state, and federal regulations.
Contaminated packaging: Dispose of as unused product. CONTAINERS MAY BE HAZARDOUS WHEN EMPTY. Since emptied containers retain product residue follow all MSDS and label warnings even after container is emptied. Do not burn, or use a cutting torch on, the empty drum. Pursue safe, legal methods for recycle of empty containers. Improper disposal or re-use of this container may be dangerous and illegal. Refer to applicable local, state and federal 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.
