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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

- After inhalation:

Supply fresh air.

Seek medical treatment in case of complaints.

- After skin contact:

Immediately wash with water and soap and rinse thoroughly.

If skin irritation continues, consult a doctor.

- After eye contact:

Rinse opened eye for several minutes under running water. If symptoms persist, consult a doctor.

- After swallowing:

If swallowed, rinse mouth with water (only if the person is conscious).

Drink plenty of water and provide fresh air.

Seek medical treatment in case of complaints.

Fire-fighting measures

- Extinguishing media

The product is not flammable.

Use fire extinguishing methods suitable to surrounding conditions.

- Advice for firefighters

Wear fully protective equipment

Wear self-contained respiratory protective device.

Do not inhale explosion gases or combustion gases.

- Additional information:

Dispose of fire debris and contaminated fire fighting water in accordance with official regulations.

Accidental release measures

- Personal precautions, protective equipment and emergency procedures:

Avoid formation of dust.

Avoid contact with the eyes and skin.

Use respiratory protective device against the effects of fumes/dust/aerosol.

- Environmental precautions:

Damp down dust with water spray.

- Methods and material for containment and cleaning up:

Pick up mechanically.

Avoid formation of dust.

Dispose of the material collected according to regulations.

Handling and storage

- Precautions for safe handling

Prevent formation of dust.

Provide suction extractors if dust is formed.

Avoid contact with the eyes and skin.

- Information about fire - and explosion protection: No special measures required.

- Conditions for safe storage, including any incompatibilities

The material should be stored in dry, clean areas.

Keep container tightly sealed.

Store in dry conditions.

Transport information

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Inland waterway transport (UN RTDG/ADN(R))

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Special provisions / remarks
Yb2O3 is not a dangerous goods according to the transport regulations.

Marine transport (UN RTDG/IMDG)

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Exposure controls / personal protection

- Information about design of technical facilities:

Ensure good ventilation/exhaustion at the workplace.

Control parameters

· Ingredients with limit values that require monitoring at the workplace:

Yb2O3 does not need to be monitored at the workplace.

- General protective and hygienic measures:

The usual precautionary measures are to be adhered to when handling chemicals.

Do not inhale dust / smoke / mist.

Wash hands before breaks and at the end of work.

Avoid contact with the eyes and skin.

Use skin protection cream for skin protection.

- Personal protective equipment:

· Respiratory protection:

Not necessary if room is well-ventilated.

Use suitable respiratory protective device when high concentrations are present.

Recommended filter device for short term use:

Filter P1

Filter FFP1

· Protection of hands:

Protective gloves

· Material of gloves

Butyl rubber, BR

Nitrile rubber, NBR

Fluorocarbon rubber (Viton)

Natural rubber, NR

Chloroprene rubber, CR

· Penetration time of glove material

Value for the permeation: Level  120 min. (EN 374)

The exact break through time has to be found out by the manufacturer of the protective gloves and has to be


· Eye protection:

Safety glasses

· Body protection: Protective work clothing

Stability and reactivity

- Reactivity No hazardous reaction known.

- Chemical stability

No decomposition if used and stored according to specifications.

- Possibility of hazardous reactions Reacts with strong acids.

- Hazardous decomposition products: No dangerous decomposition products known.

Disposal considerations

- Waste treatment methods

· Recommendation

Hand over to hazardous waste disposers.

Disposal must be made according to official regulations.

- Recommendation for uncleaned packaging:

Non contaminated packagings may be recycled.

Packagings that may not be cleansed are to be disposed of in the same manner as the product.

Disposal must be made according to official regulations.