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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Guidance on Safe Use

Guidance on Safe Use

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Administrative data

First-aid measures


Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.


Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.


Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.


Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Fire-fighting measures

Suitable extinguishing media:

Water (spray - not splash)

Dry extinguishing powder

Alcohol resistant foam

Carbon dioxide

Fight large fire with alcohol resistant foam or water spray.


Seek immediate cover in case of sudden release and raising of large quantities of dust.

Cool surrounding containers with water spray.

If possible, take container out of dangerous zone.

Shut off sources of ignition.

Stay on upwind side.

Do not allow runoff to get into the sewage system.

Special protective equipment:

Attention! Hazardous decomposition products may occur.

Nitrous gases (nitric oxides)

Wear self-contained breathing apparatus and special tightly sealed suit.

Accidental release measures

Evacuate area. Warn affected surroundings.

The hazardous area may only be entered once suitable protective measures are implemented. Only then can the hazardous situation be removed.

Wear respiratory protection, eye protection, hand protection and body protection (see chapter Personal Protection).

Carefully sweep up, gather and remove. Avoid rising dust.

Afterwards ventilate area and wash spill site.

Endangerment of drinking water and environment:

The effects on water sources have not yet been categorised. Yet escape into ground, lakes, or streams should be avoided under all circumstances. Inform responsible authorities in case of escape.

Maybe a hazard to the surrounding atmosphere if larger quantities of the substance escape. Inform the authorities.

Handling and storage



Provision of very good ventilation in the working area.

The floor should not have a floor drain.

Washing facility at the workplace required.

Eye bath required. These locations must be signposted clearly.

When handling excessive amounts of the substance an emergency shower is required.


Use only closed apparatus.

If release of the substance cannot be prevented, then it should be suctioned off at the point of exit.

Consider emission limit values, a purification of waste gases if necessary.

Label containers and pipelines clearly.

Advice on safer handling:

Take care to maintain clean working place.

The substance must not be present at workplaces in quantities above that required for work to be progressed.

Do not leave container open.

Use leak-proof equipment with exhaust for refilling or transfer.

Avoid spillage.

Fill only into labelled container.

Avoid any contact when handling the substance.

Avoid rising dust.

Use an appropriate exterior vessel when transporting in fragile containers.

Cleaning and maintenance:

Use protective equipment while cleaning if necessary.

Avoid dust formation. Dust formation that cannot be avoided must be collected regularly.

Use tested industrial vacuum cleaners or suction systems for areas with a high risk of explosion.

Do not raise dust while cleaning.

Use of a blower for cleaning is not permitted.

Only conduct maintenance and other work on or in the vessel or closed spaces after obtaining written permission.



Keep in locked storage or only make accessible to specialists or their authorised assistants.

Do not use any food containers - risk of mistake.

Containers have to be labelled clearly and permanently.

Store in the original container as much as possible.

Place fragile vessels in break-proof outer vessels.

Keep container tightly closed.

Recommended storage at room temperature.

Store in a dry place.

Keep container in a well-ventilated place.

Conditions of collocated storage:

Storage class 6.1 A (Combustible acutely toxic Cat. 1 and 2 substances)

Only substances of the same storage class should be stored together.

Collocated storage with the following substances is prohibited:

- Pharmaceuticals, foods, and animal feeds including additives.

- Infectious, radioactive und explosive substances.

- Gases.

- Other explosive substances of storage class 4.1A.

- Spontaneously flammable substances.

- Substances liberating flammable gases in contact with water.

- Strongly oxidizing substances of storage class 5.1A.

- Ammonium nitrate and preparations containing ammonium nitrate.

- Organic peroxides and self reactive substances.

Under certain conditions the collocated storage with the following sub-stances is permitted (For more details see TRGS 510):

- Flammable solid substances or desensitized substances of storage class 4.1B.

- Oxidizing substances of storage class 5.1B.

- Combustible solids of storage class 11.

The substance should not be stored with substances with which ha-zardous chemical reactions are possible.

Transport information

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Marine transport (UN RTDG/IMDG)

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Exposure controls / personal protection

Personal Protection

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.


A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.

Exposure Effects

Absorption into the body leads to the formation of methemoglobin which in sufficient concentrations causes cyanosis.

Stability and reactivity

Disposal Code



Oxidizing agents.


Stable under normal temperatures and pressures.


Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen

Disposal considerations

Hazardous waste according to Waste Catalogue Ordinance (AVV).

If there is no way of recycling it must be disposed of in compliance with the respective national and local regulations.

Collection of small amounts of substance:

Do not put/place waste into sink or dust bin.

Collect in container for toxic, flammable compounds.

Collection vessels must be clearly labelled with a systematic description of their contents. Store the vessels in a well-ventilated location. Entrust them to the appropriate authorities for disposal.