bromine
Let an agent explain bromine as an element, relay its properties, uses, hazards and regulation from reference and regulatory sources, and separate the element from bromide salts and organobromine compounds.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent explain bromine as an element, relay its properties, uses, hazards and regulation from reference and regulatory sources, and separate the element from bromide salts and organobromine compounds.
A dark red, volatile, corrosive liquid nonmetal, chemical element 35 and a halogen, obtained from brines and seawater; used in flame retardants, drilling fluids, agricultural fumigants, pharmaceuticals and photographic chemicals, bromine is toxic and its vapour is a severe irritant, and some organobromine compounds are restricted for ozone depletion and persistence.
What it is for: Flame retardants, drilling fluids, fumigants, pharmaceuticals and chemicals.
It can be explain properties and isotopes; explain uses and production; relay hazards and handling rules; relay regulation of bromine compounds.
Distinguishing features
Only nonmetal liquid at room temperature
Halogen reactivity
Toxic and corrosive
Extracted from brines
What it looks like
Dark reddish-brown liquid that gives off a red-brown vapour with a sharp smell.
Physical character
atomic number: 35
boiling point: about 59 degrees C
density: about 3.1 g per cubic centimetre
stable isotopes: bromine-79 and bromine-81 isotopes
How it is recognised
Element 35, halogen, liquid at room temperature
Red-brown liquid and vapour
Bromide salts are compounds; iodine and chlorine are neighbouring halogens
Related models
is a kind of - group 17
is obtained from - the source
is used in - a main use
is related to - the lighter halogen
In practice
Families and kinds
elemental bromine
bromide salts
organobromine compounds such as brominated flame retardants
bromine isotopes
bromine in seawater and brines
Identifiers
chemical symbol Br
CAS number 7726-95-6
UN number UN1744 transport
Standards and regulation
GHS classification and labelling
Dangerous goods transport rules
Montreal Protocol controls on methyl bromide
Stockholm Convention and national restrictions on some brominated flame retardants
Failure modes and hazards
Severe burns and respiratory injury from exposure
Environmental persistence of some compounds
Confusing bromine with bromide
Also called
+7
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.bromine
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Element What bromine is.
Chemistry.
Properties
Properties.
Properties
Properties.
- What are the physical, chemical and nuclear properties of bromine? definition
- Is the question about the element, a bromide or an organobromine compound? boundary
Production
Production.
Production
Production.
- How is bromine extracted from brines, and who produces it, with sources? measurement
- Which entry fits brine chemistry? action
Use Applications.
Uses.
Applications
Uses.
Applications
Applications.
- How is bromine used in flame retardants, drilling, agriculture and medicine? provenance
- Which entry fits a specific compound? action
Regulation
Regulated compounds.
Regulation
Regulation.
- Which bromine compounds are restricted, and why? provenance
- Which entry fits the Montreal Protocol? action
Safety Hazards and handling.
Safety.
Hazards
Hazards.
Hazards
Hazards.
- What hazards does bromine pose, and what handling and transport rules apply? provenance
- Is the user reporting an exposure, which needs emergency services and poison control? boundary
Environment
Environmental issues.
Environment
Environment.
- What environmental concerns surround bromine compounds, with findings attributed? provenance
- Is the presentation neutral? boundary
Context History and biology.
Context.
History
Discovery.
History
History.
- How was bromine discovered and named? provenance
- Which references are standard? provenance
Biology
Biological role.
Biology
Biology.
- What biological roles do bromine and bromide have? provenance
- Which entry fits trace elements? action
What the second pass must settle
- Should brominated flame retardants be a separate entry?
- How should regulatory lists be linked?
- The registry entry has merged isotope aliases; should they be split off?