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Guidance on Safe Use

Guidance on Safe Use

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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 removedand 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 unsuitableextinguishing agents: WaterCarbon dioxide• Special hazards caused by thesubstance, its products ofcombustion or resulting gases: Can form explosive gas-air mixtures.• Protective equipment: Wear self-contained respiratory protective device.

Accidental release measures

• Person-related safetyprecautions: Use respiratory protective device against the effects of fumes/dust/aerosol.• Measures for environmentalprotection: Do not allow product to reach sewage system or any watercourse.• Measures for cleaning/collecting: Do not flush with water or aqueous cleansing agentsWhen 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 - andexplosion protection: Keep ignition sources away - Do not smoke.Protect against electrostatic charges.Inflammable and explosive dust-air mixtures can develop incombination with air.• Storage:• Requirements to be met bystorerooms and receptacles: Containers must be clearly and indelibly identified.• Information about storage inone common storage facility: Store away from foodstuffs.• Further information aboutstorage conditions: Store in cool, dry conditions in well sealed receptacles.• Storage class: Comply with on-site storage guidelines for substances able toheat up spontaneously (pyrophoric).• Class according to regulationon flammable liquids: Not applicable

Transport information

Land transport (UN RTDG/ADR/RID)

UN number:
UN number: 3189• Land transport ADR/RID (cross-border)• ADR/RID class: 4.2Classification of each powder quality to be transported shall be separately performed.
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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 aboutdesign 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
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 that
are binding upon employers. Should no AGW and for example no maximum workplace concentrati
on (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 Gesetz
lichen Unfallversicherung (IFA))current values are available: http://www.dguv.de/ifa/gestis/gestis-dnelliste/
index.jsp.
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: https://www.baua.de/DE/Angebote/Rechtstexte-und-Technische-Regeln/Regelwerk/
TRGS/pdf/TRGS-905.pdf?__blob=publicationFile)
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 OccupationalExposure Limit Values forpossible hazards duringprocessing: Compliance with the general dust limit value(s) (lung penetratingand/or inhalable fraction) must be ensured.• Additional information: The lists valid during the making were used as basis.• Recommended analysisprocedures: cobalt:- NIOSH, no. 7027- OSHA, no. ID 121 / ID-125• Personal protective equipment:• General protective andhygienic 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 FFP310 times the limit value (FFP2)30 times the limit value (FFP3)Recommendation: P3• Protection of hands: Avoid repeated and prolonged contact with the skin, useprotective gloves.Preventive skin protection by use of skin-protectingagents 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 ofexposure 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).Attention:At high temperatures the substance has an exothermic reactionin combination with nitrogen.• Materials to be avoided: Aqueous media (e.g. acid, alkaline solutions, water), substanceswith an oxidizing effect• Dangerous reactions Hydrogen is released when it comes into contact with water, andexplosive gaseous mixtures can develop.In combination with air or atmospheres with an oxidizing effectfine powders can develop spontaneous heating or becomepyrophoric.• Dangerous decompositionproducts: No dangerous decomposition products known.

Disposal considerations

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