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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
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EC number: 231-149-1 | CAS number: 7440-39-3
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Guidance on Safe Use
Administrative data
First-aid measures
In general: Wear protective gloves/protective clothing/eye protection/face protection. Do no eat, drink or smoke when using this product.IF INHALED: Not applicable as the substance is not supplied in powder form. IF IN EYES: Rinse thoroughly with plenty of water, also under the eyelids. A victim may need assistance in keeping their eyelids open. Seek medical attention immediately / call a POISON CENTER. If ON SKIN: Take off immediately all contaminated clothing. Wash contaminated clothing before re-use. Brush off loose particles from skin. Wash the affected area with water for at least 15 minutes. Seek medical attention immediately / call a POISON CENTER. IF SWALLOWED: Quickly wipe material from mouth and rinse with water. Do not induce vomiting. Seek medical attention immediately / call a POISON CENTER.
Fire-fighting measures
In case of fire: Use Class D dry powder or sand to extinguish. Do not use water, carbon dioxide or halogenated extinguishers.Specific Hazards Arising from the Material: Material readily reacts with water generating flammable hydrogen gas. May emit toxic fumes under fire conditions.Special Protective Equipment and Precautions for Firefighters: Full face, self-contained breathing apparatus and full protective clothing to prevent contact with skin and eyes. Barium metal can reignite after fire is initially extinguished. Never leave extinguished fire unattended.
Accidental release measures
Wear protective gloves / protective clothing / eye protection / face protection. Do not breathe dust / fumes /gas /mist/ vapours /spray.Avoid contact with skin and eyes. Eliminate all sources of ignition.Methods and Materials for Containment and Cleaning Up: Sweep or scoop spilled product and place in a closed container for further handling and disposal. Do not use water for spill clean-up. Cover very small quantities in the open with powdered limestone and let decompose. Use only non-sparking tools and natural bristle brushes.Environmental Precautions: Do not flush to sewer, stream, or other bodies of water. Do not allow to enter drains or to be released to the environment.
Handling and storage
Precautions for Safe Handling: Store in a dry place. Store in a closed container under argon or mineral oil. Store locked up.Keep away from heat, hot surfaces, sprarks, open flames and other ignition sources. No smoking. Handle under inert gas. protect from moisture. Do not breathe dust / fumes / gas / mist / vapours / spray.Avoid contact with skin and eyes. Wash thoroughly before eating or smoking. See section 8 for information on personal protection equipment.Conditions for Safe Storage, Including Any Incompatibilities: Do not store together with acids or oxidizers. See section 10 for more information on incompatible materials.
Transport information
Land transport (UN RTDG/ADR/RID)
- UN number:
- UN1400
Shipping information
- Proper shipping name and description:
- Barium
- Chemical name:
- Barium
- Language:
- English
Special provisions / remarks
- Remarks:
- Warning, substances which, in contact with water, emit flammable gases.
Shippingopen allclose all
Remarksopen allclose all
Marine transport (UN RTDG/IMDG)
- UN number:
- 1400
Shipping information
- Proper shipping name and description:
- barium
- Chemical name:
- barium
- Labels:
- 4.3
Remarksopen allclose all
Air transport (UN RTDG/ICAO/IATA)
- UN number:
- 1400
Shipping information
- Proper shipping name and description:
- barium
- Chemical name:
- barium
- Labels:
- 4.3
Remarksopen allclose all
SpecialProvisionsopen allclose all
Exposure controls / personal protection
OSHA/PEL: 0.5 mg/m3ACGIH/TLV: 0.5 mg/m3Appropriate Engineering Controls: Handle in an enclosed, controlled process under dry argon. Whenever possible the use of local exhaust ventilation or other engineering controls is the preferred method of controlling exposure to airborne dust and fume to meet established occupational exposure limits. Do not eat, drink or smoke when using this product. Wash thoroughly after handling and before eating or smoking. Do not blow dust off clothing or skin with compressed air. Prepare for the possibility of a fire. Keep extinguishing agents, tools for handling and protective clothing readily available.Please refer to the exposure scenarios for RMMs (chapter 13)
Stability and reactivity
Stable under recommended storage conditions.Reacts readily with water releasing flammable hydrogen gas. Conditions to Avoid: Avoid contact with water or moist air and possible ignition sources such as sparks or flame. Incompatible Materials: Water or moisture, oxidizing agents, oxygen, acids, alcohols, halocarbons, carbon dioxide, ammonia. Hazardous Decomposition Products: Barium hydroxides, barium oxides, hydrogen gas.
Disposal considerations
Disposal in accordance with local, regional, national and international regulations. Dispose of wastes in an approved waste disposal facility.Packaging treatment: Containers that cannot be cleaned must be treated as waste or must be incinerated in a suitable incineration plant holding a permit delivered by the competent authorities.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.