Registration Dossier
Registration Dossier
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EC number: 201-177-9 | CAS number: 79-10-7
Guidance on Safe Use
Administrative data
First-aid measures
Description of first aid measures
Immediately remove contaminated clothing. If danger of loss of consciousness, place patient in recovery position and transport accordingly. Apply artificial respiration if necessary. First aid personnel should pay attention to their own safety.
If inhaled:
Immediately administer a corticosteroid from a controlled/metered dose inhaler. Keep patient calm, remove to fresh air, seek medical attention.
On skin contact:
Flush with copious amounts of water for at least 15 minutes. Sterile protective dressing. Immediate medical attention required.
On contact with eyes:
Immediately wash affected eyes for at least 15 minutes under running water with eyelids held open, consult an eye specialist.
On ingestion:
Immediately rinse mouth and then drink plenty of water, do not induce vomiting, seek medical attention.
Symptoms: skin corrosion
Hazards: Risk of pulmonary edema. Symptoms can appear later.
Treatment: Treat according to symptoms (decontamination, vital functions), no known specific antidote, administer corticosteroid dose aerosol to prevent pulmonary odema.
Fire-fighting measures
Suitable extinguishing media:
carbon dioxide, dry powder, water spray, foam
Special hazards arising from the substance or mixture:
Risk of violent self-polymerization if overheated in a container. Explosive-like polymerization.
Advice for fire-fighters:
Special protective equipment: Wear a self-contained breathing apparatus.
Further information:
Remove product from areas of fire, or otherwise cool containers with water in order to avoid pressure build up due to heat. The product or its combustible
parts are soluble in water. Contaminated extinguishing water must be disposed of in accordance with official regulations.
In case of a fire in the vicinity a restabilization system should be used if the temperature in the storage container reaches 45°C. Evacuate area of all
unnecessary personnel. In case of a fire in the vicinity evacuate all personnel in a greater area if the temperature in the storage container reaches 60°C.
Accidental release measures
Personal precautions, protective equipment and emergency procedures:
Use personal protective clothing. Ensure adequate ventilation. Breathing protection required. Avoid all sources of ignition: heat, sparks, open flame. Avoid
contact with the skin, eyes and clothing.
Environmental precautions:
Do not discharge into waterways or sewer systems without proper authorization. Contain contaminated water/firefighting water.
Methods and material for containment and cleaning up:
For small amounts: Neutralize with lime.
For large amounts: Pump off product.
For residues: Pick up with suitable absorbent material (e.g. acid binder).
Dispose of absorbed material in accordance with regulations.
Handling and storage
Precautions for safe handling:
Handle in accordance with good industrial hygiene and safety practice. The substance/ product may be handled only by appropriately trained personnel.
Ensure thorough ventilation of stores and work areas. When filling, transferring, or emptying of containers, adequate local exhaust ventilation is necessary.
Vent waste air to atmosphere only through suitable separators. Check the condition of seals and connector screw threads.
Protect contents from the effects of light. Protect from direct sunlight. Protect against heat. Do not open warm or swollen product containers.
Remove persons to safety and alert fire brigade.
Ensure adequate inhibitor and dissolved oxygen level.
Because of the possible separation from the stabilizer the product should never be partially melted and taken. Ensure that there is no crystallized product in
the container before use. Obtain Information from supplier/ manufacturer before dissolving totally or partially crystallized product. The ambient temperature
of the container may not exceed the stated temperature limit when melting the product or keeping it at moderate temperature.
Protection against fire and explosion:
Ground all transfer equipment properly to prevent electrostatic discharge. Containers should be grounded against electrostatic charge. I
t is recommended that all conductive parts of the machinery are grounded. Vapours may form ignitable mixture with air.
Avoid all sources of ignition: heat, sparks, open flame.
Heated containers should be cooled to prevent polymerization. If exposed to fire, keep containers cool by spraying with water.
Temperature class: T2 (Autoignition temperature >300 °C).
Conditions for safe storage, including any incompatibilities:
Further information on storage conditions: Prior to storage ensure that the transfer equipment used and the intended storage containers do not contain
other substances/products. Before transfer to stock the identity of the product must be proved to be without doubt. The entrance to storage rooms is to
be granted only to appropriately trained personnel.
The stabilizer is only effective in the presence of oxygen. Maintain contact with atmosphere containing 5 - 21% oxygen.
Never use tanks with inert-gas installation for storage.
Risk of polymerization. Protect against heat. Avoid UV-light and other radiation with high energy. Protect against contamination.
All storage containers should at least be equipped with two high temperature alert devices.
Do not store product below the indicated minimum temperature, because crystallization should be absolutely avoided.
Even if the product is stored and handled as prescribed/indicated it should be used up within the indicated duration of storage.
Storage stability:
Storage temperature: 15 - 25 °C
Storage duration: 12 Months
The stated storage temperature should be noted.
Avoid prolonged storage.
This product should be processed as soon as possible.
During storage, an unavoidable dimerization takes place, which reaction rate can be reduced by a storage temperature as low as possible.
It is recommended to keep a safe distance of +2 degrees above the crystallization range.
The product is stabilized, the shelf life should be noted.
Do not store with less than 10 % headspace above liquid.
Ensure adequate inhibitor and dissolved oxygen level.
Storage temperature: 45 °C
A restabilization system should be used if the temperature in the storage container reaches the indicated value.
Storage temperature: 60 °C
All personnel in a greater area should be evacuated if the temperature in the storage container reaches the indicated value.
Transport information
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Marine transport (UN RTDG/IMDG)
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Exposure controls / personal protection
Exposure controls:
Personal protective equipment:
Respiratory protection:
Suitable respiratory protection for lower concentrations or short-term effect: Gas filter for gases/vapours of organic compounds (boiling point >65 °C,
e. g. EN 14387 Type A)
Hand protection:
Suitable materials also with prolonged, direct contact (Recommended: Protective index 6, corresponding > 480 minutes of permeation time
according to EN 374):
butyl rubber (butyl) - 0.7 mm coating thickness
Manufacturer's directions for use should be observed because of great diversity of types.
Supplementary note: The specifications are based on tests, literature data and information of glove manufacturers or are derived from similar
substances by analogy. Due to many conditions (e.g. temperature) it must be considered, that the practical usage of a chemical-protective glove in
practice may be much shorter than the permeation time determined through testing.
Eye protection:
Tightly fitting safety goggles (splash goggles) (e.g. EN 166)
Body protection:
Body protection must be chosen depending on activity and possible exposure, e.g. apron, protecting boots, chemical-protection suit
(according to EN 14605 in case of splashes or EN ISO 13982 in case of dust)., protection boots (f.e. according to EN 20346), antistatic
General safety and hygiene measures:
Avoid inhalation of vapour. Avoid contact with the skin, eyes and clothing.
Wearing of closed work clothing is required additionally to the stated personal protection equipment.
Stability and reactivity
Reactivity:
Corrosion to metals:
Corrodes metals in the presence of water or moisture.
Formation of flammable gases:
Remarks: Forms no flammable gases in the presence of water.
Chemical stability:
The product is stable if stored and handled as prescribed/indicated.
Possibility of hazardous reactions:
Explosion and fire hazard exists under confined conditions. Ignitable air mixtures can form when the product is heated
above the flash point and/or when sprayed or atomized.
Risk of spontaneous and violent self-polymerization if inhibitor is lost or product is exposed to excessive heat. Risk of spontaneous polymerization
when heated or in the presence of UV radiation. With unstabilised product, spontaneous polymerisation may occur e.g. through ambient heat.
Polymerization coupled with heat formation. Polymerization produces gases which may burst closed or confined containers. Reactions may cause ignition.
Risk of spontaneous polymerization by oxygen depletion of the liquid phase.
Radical formation can cause exothermic polymerization. Reacts with peroxides and other radical components. Risk of spontaneous polymerization
in the presence of starters for radical chain reactions (e.g. peroxides).
Reacts with nitric acid. Polymerizes explosively in contact with strong oxidizing agents.
Hazardous reactions in presence of mentioned substances to avoid.
The product is stabilized against spontaneous polymerization prior to despatch.
The product is stable if stored and handled as prescribed/indicated.
Conditions to avoid:
Avoid heat. Avoid oxygen content above the product of less than 5 %. Avoid UV-light and other radiation with high energy. Avoid direct sunlight.
Avoid prolonged storage. Avoid inhibitor loss. Avoid excessive temperatures. Avoid freezing. Avoid moisture.
Avoid all sources of ignition: heat, sparks, open flame.
Avoid temperatures below the crystallization range.
Incompatible materials:
Substances to avoid:
radical formers, free radical initiators, peroxides, mercaptans, nitro-compounds, perborates, azides, ether, ketones, aldehydes, amines, nitrates, nitrites,
oxidizing agents, reducing agents, strong bases, alkaline reactive substances, acid anhydrides, acid chlorides, concentrated mineral acids, metal salts
Inert gas
Hazardous decomposition products:
No hazardous decomposition products if stored and handled as prescribed/indicated.
Disposal considerations
Must be sent to a suitable incineration plant, observing local regulations.
Contaminated packaging:
Uncleaned empties should be disposed of in the same manner as the contents.
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.
