Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Administrative data

First-aid measures

Emergency measure - Inhalation: Remove patient to fresh air and seek medical attention.

If not breathing, suitably qualified personnel should give

artificial respiration and, if breathing is difficult, give

oxygen. Continue administration of 100% oxygen for half hour

periods for at least six hours until breathing is easy.

Emergency measure - Eyes: Flush eyes with water for a minimum of 15 minutes. Seek

medical attention immediately.

Emergency measure - Skin: Flush with water for at least 15 minutes while removing

contaminated clothing. Launder clothing before re-use.

Emergency measure - Ingestion: Seek immediate medical attention.

Fire-fighting measures

Recommended extinguishing agent: Dry powder should be used. If unavailable, use sand,

absorbent clay, or carbon dioxide.

Product arising from burning: The substance is pyrophoric and may ignite on contact with

air, evolving noxious fumes eg carbon and arsenic oxides and

acids. Once extinguished, re-ignition may occur on contact

with air.

Product determined by test: N

Protective equipment: Full protective clothing and a self-contained breathing

apparatus must be worn.

Accidental release measures

Emergency measures in case of spillage: In case of accidental spillage evacuate all personnel from

the area. Wear suitable protective clothing (see 2.3.1).

Block off source of spill if possible. Extinguish any fire

with appropriate extinguisher. Keep to a safe distance.

Protect adjacent property. Do not contact with combustible

material. Cover spill with inert absorbent material. Dispose

of in a sealed container as arsenic waste, in accordance

with local regulations.  Avoid release to drains.

Handling and storage

Handling: Wear protective clothing, fire resistant gloves, safety

goggles, face shield, safety shoes. Use full protective

clothing when handling. The cylinder must be located in a

fume hood while removing end-caps or plugs. Always handle

under an anaerobic atmosphere. Avoid contact with oxidising

agents, strong acids, chlorocarbons and bromocarbons. Do not

heat in excess of 50 deg C. Inhalation must be strictly

avoided. Do not eat, drink or smoke where this is to be used

and wash hands and  face with soap and water after use.

All air, water and other oxidisers must be removed from

piping and equipment for delivery of the substance.

Storage: Always store under an anaerobic atmosphere. Do not expose to

temperatures above 50 deg C. Containers should be stored

upright in a well-ventilated and secure area. Storage should

be away from emergency exits and heavily travelled areas.

Valve caps should remain on containers not connected to


Packaging of the substance and or preparation: All-welded 316 stainless steel containers with nupro valves

and sealed VCR connections manufactured to ASME VIII.

Transport information

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Marine transport (UN RTDG/IMDG)

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Air transport (UN RTDG/ICAO/IATA)

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Special provisions / remarks
Transport code: UN No 2003 class 4.2 metal alkyl N.O.S.
Transport: IMDG code 4254.
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Exposure controls / personal protection

Stability and reactivity

Danger other than fire: Ignition may occur on contact with air. Keep away from

oxidising agents, strong acids and chloro- and bromocarbons.

Chemical reaction with water: Hydrolyses slowly.

Dust explosion determined by test: N

Disposal considerations

Industry - Possibility of recovery/recycling: Recovery for recycling is not possible.

Industry - Possibility of neutralisation: The substance is pyrophoric and rapidly oxidised in air so

that the concentration will decrease as the substance

reacts. The substance decomposes slowly in water.

Industry - Possibility of destruction: controlled discharge: All material should be returned to the supplier for

disposal. It will be neutralised by dilution and

decomposition and then disposed of as arsenic waste to an

appropriate hazardous waste operator.

Industry - Possibility of destruction - incineration: Not recommended.

Industry - Possibility of destruction - water purification: Not recommended.

Public at large - Possibility of recovery/recycling: The substance will not enter the public domain.