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Diss Factsheets

Guidance on Safe Use

Guidance on Safe Use

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Administrative data

First-aid measures

• After inhalation: If metal vapours or solid dusts have been inhaled:
Get the affected person out in the fresh air and call a doctor.
• After skin contact: Foreign bodies which have penetrated the skin must be removed
and the wound cleaned thoroughly.
Remove contaminated clothing.
If skin irritation continues, consult a doctor.
• After eye contact: Foreign bodies must be removed, consult a doctor if necessary.

Fire-fighting measures

• Suitable extinguishing agents: Dry sand, metal fire powder or carbon powder
• For safety reasons unsuitable extinguishing agents: Water
Carbon dioxide
• Special hazards caused by the substance, its products of combustion or resulting gases: Can form explosive gas-air mixtures.
• Protective equipment: Wear self-contained respiratory protective device.

Accidental release measures

• Person-related safety
precautions: Use respiratory protective device against the effects of fumes/dust/aerosol.
• Measures for environmental protection: Do not allow product to reach sewage system or any watercourse.
• Measures for cleaning/collecting: Do not flush with water or aqueous cleansing agents
When cold, sweep it up carefully.
Avoid dust development.

Handling and storage

• Handling:
• Information for safe handling: Keep receptacles tightly sealed.
Prevent formation of dust.
Fill only in inert gas.
Ensure good ventilation/exhaustion at the workplace.
Take note of emission threshold.
• Information about fire - and
explosion protection: Keep ignition sources away - Do not smoke.
Protect against electrostatic charges.
Inflammable and explosive dust-air mixtures can develop in
combination with air.
• Storage:
• Requirements to be met by
storerooms and receptacles: Containers must be clearly and indelibly identified.
• Information about storage in
one common storage facility: Store away from foodstuffs.
• Further information about
storage conditions: Store in cool, dry conditions in well sealed receptacles.
• Storage class: Comply with on-site storage guidelines for substances able to
heat up spontaneously (pyrophoric).
• Class according to regulation
on flammable liquids: Not applicable

Transport information

Land transport (UN RTDG/ADR/RID)

UN number:
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Marine transport (UN RTDG/IMDG)

UN number:
• Maritime transport IMDG:
• IMDG Class: -
• Marine pollutant: -
• Remarks: Not tested
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Air transport (UN RTDG/ICAO/IATA)

UN number:
• Air transport ICAO-TI and IATA-DGR:
• ICAO/IATA Class: -
• Remarks: Not tested
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Exposure controls / personal protection

• Additional information about
design of technical facilities: Provide a suitable suction with filter and good ventilation of the working area
for all processing steps.
Suitable breathing apparatus must be used (see personal safety equipment) for repair and maintenance
work on suction systems,
especially when changing the filters.
• Ingredients with limit values that require monitoring at the workplace:
7440-48-4 cobalt
ERB (Germany) 0.5 μg/m³ (A) bzw. 5μg/m³ (A)
MAK (Germany) inhalable fraction; see Abschn.XIII
DNELs for OSH purposesIn
Germany, occupational exposure limits (AGW) of the Technical Rules on
Hazardous Substances (TRGS) 900 continue to constitute workplace atmospheric limit values thatare binding upon employers. Should no AGW and for example no maximum workplace concentration (MAK value) of the German Research Foundation (DFG) be available, the employer must also
consider the DNEL during risk assessment.(Source: Institut für Arbeitsschutz der Deutschen Gesetzlichen Unfallversicherung (IFA))current values are available:
7440-48-4 cobalt
Inhalative Long-term exposure - inhalation - local effects: 0.04 mg/m³ (Ind)
0.0063 mg/m³ (Consumer)
7440-48-4 cobalt
TRGS 905 (see:
Cobalt metal ( in form of inhalable dust/aerosole), EC# 231-158-0, CAS# 7440-48-4: Carc. 1B
14th Adaptation to Technical Progress (14th ATP) to the EU CLP Regulation:
Index No: 027-001-00-9
Chemical name: cobalt
EC No: 231-158-0
CAS No: 7440-48-4
Hazard class and Category Code(s): Carc 1B, Muta 2, Repr 1B, Resp Sens 1, Skin Sens 1, AqCh
ronic 4
Hazard Statement Code(s): H350, H341, H360F, H334, H317, H413
Pictogram, Signal Word Code(s): GHS08, Dgr
SCLs, M-factors and ATEs: [Interim GCL for carcinogenicity; 0.1 %]

• Additional Occupational
Exposure Limit Values for possible hazards during processing: Compliance with the general dust limit value(s) (lung penetrating
and/or inhalable fraction) must be ensured.
• Additional information: The lists valid during the making were used as basis.
• Recommended analysis
procedures: cobalt:
- NIOSH, no. 7027
- OSHA, no. ID 121 / ID-125
• Personal protective equipment:
• General protective and
hygienic measures: Keep away from foodstuffs, beverages and feed.
Wash hands before breaks and at the end of work.
• Respiratory protection: In the case of dust formation (limit value exceeded),
breathing apparatus must be worn.
Time limits for wearing must be observed.
Breathing mask, apparatus with particle filter P2 or P3,
for example:
- Full face mask (EN 136)
- Breathing mask (EN 149) FFP2 or FFP3
10 times the limit value (FFP2)
30 times the limit value (FFP3)
Recommendation: P3
• Protection of hands: Avoid repeated and prolonged contact with the skin, use
protective gloves.
Preventive skin protection by use of skin-protecting
agents is recommended.
• Material of gloves: Material of gloves should be impenetrable (e.g. nitrile caoutchouc). Depending on
use heat protective gloves are required.
• Penetration time of glove material -
• Eye protection:
Tightly sealed goggles (EN 166)
• Limitation and supervision of
exposure into the environment The legal issue values and limitations are to be paid attention!

Stability and reactivity

• Thermal decomposition /
conditions to be avoided: It does not degrade if properly used with a protective gas (argon).
At high temperatures the substance has an exothermic reaction
in combination with nitrogen.
• Materials to be avoided: Aqueous media (e.g. acid, alkaline solutions, water), substances
with an oxidizing effect
• Dangerous reactions Hydrogen is released when it comes into contact with water, and
explosive gaseous mixtures can develop.
In combination with air or atmospheres with an oxidizing effect
fine powders can develop spontaneous heating or become
• Dangerous decomposition
products: No dangerous decomposition products known.

Disposal considerations

• Recommendation Observe offical regulations.
• Uncleaned packaging:
• Recommendation: Empty contaminated packagings thoroughly. They may be
recycled after thorough and proper cleaning.
Packagings that may not be cleansed are to be disposed of in
the same manner as the product.