Registration Dossier
Registration Dossier
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EC number: 254-101-1 | CAS number: 38721-52-7
Guidance on Safe Use
Administrative data
First-aid measures
4.1. Description of first aid measures
First aid personnel should pay attention to their own safety. If the patient is likely to become unconscious, place and transport in stable sideways position (recovery position). Immediately remove contaminated clothing.
Remove contaminated clothing.
If inhaled:
Keep patient calm, remove to fresh air, seek medical attention. Immediately administer a corticosteroid from a controlled/metered dose inhaler.
Keep patient calm, remove to fresh air.
On skin contact:
Immediately wash thoroughly with plenty of water, apply sterile dressings, consult a skin specialist.
Wash thoroughly with soap and water.
On contact with eyes:
Immediately wash affected eyes for at least 15 minutes under running water with eyelids held open, consult an eye specialist.
Wash affected eyes for at least 15 minutes under running water with eyelids held open.
On ingestion:
Do not induce vomiting. Immediately rinse mouth and then drink 200-300 ml of water, seek medical attention.
Rinse mouth and then drink plenty of water.
4.2. Most important symptoms and effects, both acute and delayed
Symptoms: The most important known symptoms and effects are described in the labelling (see section 2) and/or in section 11.
4.3. Indication of any immediate medical attention and special treatment needed
Treatment: Treat according to symptoms (decontamination, vital functions), no known specific antidote.
Treatment: Symptomatic treatment (decontamination, vital functions).
Fire-fighting measures
5.1. Extinguishing media
Suitable extinguishing media: dry powder, carbon dioxide
Unsuitable extinguishing media for safety reasons: water, foam, chlorinated hydrocarbons
5.2. Special hazards arising from the substance or mixture
hydrogen, trialkylboranes
The substances/groups of substances mentioned can be released in case of fire. The decomposition product is self combustible on contact with air. Shut off or stop released substance/product under safe conditions. Risk of exothermic reaction. Contact with water releases highly flammable and/or corrosive gases/vapours.
5.3. Advice for fire-fighters
Special protective equipment:
Wear self-contained breathing apparatus and chemical-protective clothing.
Further information:
Sealed containers should be protected against heat as this results in pressure build-up. Vapours are heavier than air and may accumulate in low areas and travel a considerable distance up to the source of ignition. Collect contaminated extinguishing water separately, do not allow to reach sewage or effluent systems.
Accidental release measures
Shut off or stop released substance/product under safe conditions. The decomposition product is self combustible on contact with air. Release of substance/product can cause fire or explosion.
6.1. Personal precautions, protective equipment and emergency procedures
Use personal protective clothing. Sources of ignition should be kept well clear.
6.2. Environmental precautions
Do not empty into drains.
6.3. Methods and material for containment and cleaning up
Place into suitable container for disposal. Correctly dispose of recovered product immediately.
6.4. Reference to other sections
Information regarding exposure controls/personal protection and disposal considerations can be found in section 8 and 13.
Handling and storage
7.1. Precautions for safe handling
Avoid contact with the skin, eyes and clothing. Keep container tightly sealed. Refill and handle product only in closed system. Handle under dry nitrogen. Protect from air.
Protection against fire and explosion:
Avoid all sources of ignition: heat, sparks, open flame. Take precautionary measures against static discharges. Use antistatic tools. Render equipment and apparatus inert (nitrogen, inert gases) and ground before putting into operation. Fire extinguishers should be kept handy.
7.2. Conditions for safe storage, including any incompatibilities
Further information on storage conditions: Keep only in the original container in a cool, well-ventilated place. Keep container tightly closed and dry. Keep under dry nitrogen. Avoid all sources of ignition: heat, sparks, open flame.
7.3. Specific end use(s)
For the relevant identified use(s) listed in Section 1 the advice mentioned in this section 7 is to be observed.
Transport information
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Marine transport (UN RTDG/IMDG)
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Exposure controls / personal protection
8.1. Control parameters
Components with occupational exposure limits
38721-52-7: Lithium tri-sec-butylhydroborate
8.2. Exposure controls
Personal protective equipment
Respiratory protection:
Respiratory protection in case of vapour/aerosol release. Combination filter for gases/vapours of organic, inorganic, acid inorganic and alkaline compounds (e.g. EN 14387 Type ABEK).
Hand protection:
Chemical resistant protective gloves (EN 374)
Suitable materials short-term contact and/or splashes (recommended: At least protective index 2, corresponding > 30 minutes of permeation time according to EN 374)
butyl rubber (butyl) - 0.7 mm coating thickness
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.
Manufacturer's directions for use should be observed because of great diversity of types.
Eye protection:
Tightly fitting safety goggles (cage goggles) (e.g. EN 166) and face shield.
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).
General safety and hygiene measures
Avoid contact with the skin, eyes and clothing. Do not breathe vapour/spray. Eye wash fountains and safety showers must be easily accessible.
Stability and reactivity
10.1. Reactivity
Reacts with lyes, matals and organic compounds., Strong exothermic reaction with acids.
Formation of flammable gases:
Remarks: The product liberates flammable gases in contact with water.
10.2. Chemical stability
Slow decomposition possible.
10.3. Possibility of hazardous reactions
Reacts with water. Reacts with numerous chemical compounds, especially those with mobile hydrogen atoms. Strong exothermic reaction. May release highly flammable and/or corrosive gases/vapours. May form unstable peroxides.
10.4. Conditions to avoid
Avoid all sources of ignition: heat, sparks, open flame. Avoid contact with air. Avoid moisture. Avoid humidity.
10.5. Incompatible materials
Substances to avoid:
oxygen, water, oxidizing agents, acids, alcohols
10.6. Hazardous decomposition products
Hazardous decomposition products:
hydrogen, Lithium hydroxide, Dilithium oxide, Carbon dioxide, carbon monoxide, trialkylboranes
boranes, boron oxides
Disposal considerations
13.1. Waste treatment methods
Incinerate in suitable incineration plant, observing local authority regulations.
Contaminated packaging:
Keep under nitrogen pressure and return to supplier as soon as possible.
Always seal cylinder valves for return.
If cylinder is damaged, please contact supplier.
WARNING: Empty containers may still contain hazardous residue.
Contaminated packaging should be emptied as far as possible and disposed of in the same manner as the substance/product.
WARNING: Empty containers may still contain hazardous residue.
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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