Registration Dossier
Registration Dossier
Diss Factsheets
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EC number: 231-599-9 | CAS number: 7647-15-6
- 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

Toxicological Summary
- Administrative data
- Workers - Hazard via inhalation route
- Workers - Hazard via dermal route
- Workers - Hazard for the eyes
- Additional information - workers
- General Population - Hazard via inhalation route
- General Population - Hazard via dermal route
- General Population - Hazard via oral route
- General Population - Hazard for the eyes
- Additional information - General Population
Administrative data
Workers - Hazard via inhalation route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 4.75 mg/m³
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- Oral
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 140
- Modified dose descriptor starting point:
- NOAEC
- Explanation for the modification of the dose descriptor starting point:
- no justification for route to route extrapolation required
- AF for dose response relationship:
- 1
- AF for differences in duration of exposure:
- 2
- Justification:
- sub-chronic to chronic
- AF for interspecies differences (allometric scaling):
- 4
- Justification:
- rat to human
- AF for other interspecies differences:
- 2.5
- AF for intraspecies differences:
- 5
- Justification:
- worker
- AF for the quality of the whole database:
- 1
- AF for remaining uncertainties:
- 1.4
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
DNEL related information
- Modified dose descriptor starting point:
- LOAEC
Local effects
Long term exposure
- Hazard assessment conclusion:
- no hazard identified
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
DNEL related information
Workers - Hazard via dermal route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 95 mg/kg bw/day
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- Oral
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 100
- Modified dose descriptor starting point:
- NOAEL
- Value:
- 9 500 mg/kg bw/day
- Explanation for the modification of the dose descriptor starting point:
- 1% dermal absorption applied to NOAEL
- AF for dose response relationship:
- 1
- AF for differences in duration of exposure:
- 2
- Justification:
- sub-chronic to chronic
- AF for interspecies differences (allometric scaling):
- 4
- Justification:
- rat to human
- AF for other interspecies differences:
- 2.5
- AF for intraspecies differences:
- 5
- Justification:
- worker
- AF for the quality of the whole database:
- 1
- AF for remaining uncertainties:
- 1
Acute/short term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 95 mg/kg bw/day
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- Oral
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 100
- DNEL extrapolated from long term DNEL
- Modified dose descriptor starting point:
- NOAEL
- Value:
- 9 500 mg/kg bw/day
- Explanation for the modification of the dose descriptor starting point:
- 1% dermal absorption applied to NOAEL
- AF for dose response relationship:
- 1
- AF for interspecies differences (allometric scaling):
- 4
- Justification:
- rat to human
- AF for other interspecies differences:
- 2.5
- AF for intraspecies differences:
- 5
- Justification:
- Worker
- AF for the quality of the whole database:
- 1
- AF for remaining uncertainties:
- 2
- Justification:
- correlation with long-term exposure. No dermal toxicity observed.
Local effects
Long term exposure
- Hazard assessment conclusion:
- no hazard identified
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
Workers - Hazard for the eyes
Local effects
- Hazard assessment conclusion:
- no hazard identified
Additional information - workers
Sodium bromide is not irritating to skin and eyes, not sensitizing to skin and has a dermal LD50>2000 mg/kg bw with no systemic or local toxicity observed. It is considered unlikely that exposure of workers via the dermal route will be unsafe. Nevertheless, in order to avoid any potential exposure, workers are instructed to wear protective gloves, body covering clothes and boots.
Exposure by the inhalation route is unlikely due to the particle size.
General Population - Hazard via inhalation route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 1.66 mg/m³
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- Oral
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 200
- Modified dose descriptor starting point:
- NOAEC
- Value:
- 332 mg/m³
- Explanation for the modification of the dose descriptor starting point:
- no justification for route to route extrapolation required
- AF for dose response relationship:
- 1
- AF for differences in duration of exposure:
- 2
- Justification:
- sub-chronic to chronic
- AF for interspecies differences (allometric scaling):
- 4
- Justification:
- rat to human
- AF for other interspecies differences:
- 2.5
- AF for intraspecies differences:
- 10
- Justification:
- general public
- AF for the quality of the whole database:
- 1
- AF for remaining uncertainties:
- 1
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
DNEL related information
Local effects
Long term exposure
- Hazard assessment conclusion:
- no hazard identified
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
DNEL related information
General Population - Hazard via dermal route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 95 mg/kg bw/day
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- Oral
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 100
- Modified dose descriptor starting point:
- NOAEL
- Value:
- 9 500 mg/kg bw/day
- Explanation for the modification of the dose descriptor starting point:
- 1% dermal absorption applied to NOAEL
- AF for dose response relationship:
- 1
- AF for differences in duration of exposure:
- 2
- Justification:
- sub-chronic to chronic
- AF for interspecies differences (allometric scaling):
- 4
- Justification:
- rat to human
- AF for other interspecies differences:
- 2.5
- AF for intraspecies differences:
- 5
- Justification:
- no difference between workers and the general population with regard to dermal absorption.
- AF for the quality of the whole database:
- 1
- AF for remaining uncertainties:
- 1
Acute/short term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 95 mg/kg bw/day
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- Oral
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 100
- DNEL extrapolated from long term DNEL
- Modified dose descriptor starting point:
- NOAEL
- Value:
- 9 500 mg/kg bw/day
- Explanation for the modification of the dose descriptor starting point:
- 1% dermal absorption applied to NOAEL
- AF for dose response relationship:
- 1
- AF for interspecies differences (allometric scaling):
- 4
- AF for other interspecies differences:
- 2.5
- AF for intraspecies differences:
- 5
- Justification:
- no difference between workers and the general population with regard to dermal absorption.
- AF for the quality of the whole database:
- 1
- AF for remaining uncertainties:
- 2
- Justification:
- correlation with long-term exposure. No dermal toxicity observed.
Local effects
Long term exposure
- Hazard assessment conclusion:
- no hazard identified
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
General Population - Hazard via oral route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 0.475 mg/kg bw/day
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- Oral
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 200
- Modified dose descriptor starting point:
- NOAEL
- Value:
- 95 mg/kg bw/day
- AF for dose response relationship:
- 1
- AF for differences in duration of exposure:
- 2
- Justification:
- sub-chronic to chronic
- AF for interspecies differences (allometric scaling):
- 4
- Justification:
- rat to human
- AF for other interspecies differences:
- 2.5
- AF for intraspecies differences:
- 10
- Justification:
- General public
- AF for the quality of the whole database:
- 1
- AF for remaining uncertainties:
- 1
Acute/short term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 42 mg/kg bw/day
- Most sensitive endpoint:
- acute toxicity
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 100
- Modified dose descriptor starting point:
- NOAEL
- AF for dose response relationship:
- 1
- AF for interspecies differences (allometric scaling):
- 4
- Justification:
- rat to human
- AF for other interspecies differences:
- 2.5
- AF for intraspecies differences:
- 10
- Justification:
- General population
- AF for the quality of the whole database:
- 1
- AF for remaining uncertainties:
- 1
General Population - Hazard for the eyes
Local effects
- Hazard assessment conclusion:
- low hazard (no threshold derived)
Additional information - General Population
DNEL for general population was calculated for oral, dermal and inhalation routes of exposure based on experimental data with sodium bromide and by read-across to the analogous substances ammonium and potassium bromide (NOAEL of 95 mg/kg bw in a 90-day repeat dose oral study). The ion of concern is the bromide ion.
In consideration of the human volunteer data giving an NOAEL value for bromide effects in humans and the typical average daily bromide intake from food, Member State BPD Competent Authorities agreed that limiting derivation of hazard endpoints from animal studies was incorrect. Hazard endpoint setting should consider all relevant available data and be consistent with the level at which it has been shown in the appropriate model, in this case humans, that there are no observed adverse effects.
Therefore, the oral long-term systemic DNEL value is set in line with the Acceptable Daily Intake (ADI) value of 0.4 mg bromide/kg bw/day set by the European Medicines Agency based on the NOAEL derived from human studies and the measured human intake of bromide from background sources such as food and water. In view of the low dermal absorption of bromide ions, the dermal DNELs should not be greater than the oral DNEL.
Sodium bromide was determined experimentally as a non-sensitizer for skin and was not irritant in either skin or eye tests.
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.
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