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Phosphine: History & Applications
Phosphine (IUPAC name: phosphane) is a colorless, flammable, highly toxic compound with the chemical formula PH3, classed as a pnictogen hydride. Pure phosphine is odorless, but technical grade samples have a highly unpleasant odor like rotting fish, due to the presence of substituted phosphine and diphosphane (P2H4). With traces of P2H4 present, PH3 is…
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Phosphine topic overview
The analysis highlights History and Applications as prominent areas in the source structure around Phosphine.
Related topics
89
Source areas
7
Connected nodes
96
Extracted relationships
92
Concept neighborhoods
27
Bridge connections
96
What this topic covers Research coverage
Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.
Structure and reactions · 17 topics
Applications · 16 topics
Toxicity and safety · 15 topics
Overview · 14 topics
Preparation and occurrence · 13 topics
History · 9 topics
In fiction · 5 topics
Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.
Key facts & relationships
High-confidence facts extracted from structured source data. Use them as anchors for further research.
Explore all related topics Closing gaps
A structured outline of related entities, concepts and subtopics. Open any item to build a new map centered on it.
Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.
Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.
How Phosphine connects Entity context
Entity context groups extracted connections by relationship type. Counts show recurrence in the analyzed source; the examples are research signals, not claims about importance.
The extracted context around Phosphine shows recurring relationship patterns in the source. For example, Phosphine → BFb0051358, Chemischen Forschung, CS1, Current Chemistry, Environmental Health Criteria, Fluck, Fortschritte, Geneva, ILO, ISBN, Joint, S2CID, Selected Metal Phosphides, The Chemistry, Topics, UNEP, Vol, WHO, World Health Organization Another extracted example is Phosphine → C3v, CH3, CH3PH2, Fluck, For, In, It, Ka, Kb, NMR, P-H, PH, PH3, Proton, The, This. Use these groups to spot repeated connection types before inspecting the individual relationships.
Phosphine
Top relations
related to Further reading· 19
Phosphine → BFb0051358, Chemischen Forschung, CS1, Current Chemistry, Environmental Health Criteria, Fluck, Fortschritte, Geneva, ILO, ISBN, Joint, S2CID, Selected Metal Phosphides, The Chemistry, Topics, UNEP, Vol, WHO, World Health Organization
related to Structure and reactions· 16
Phosphine → C3v, CH3, CH3PH2, Fluck, For, In, It, Ka, Kb, NMR, P-H, PH, PH3, Proton, The, This
related to Fumigation hazards· 11
Phosphine → Asia, Australia, Because, Brazil, Gas, Genetic, High, Identification, Montreal Protocol, Pests, Sweden
Relationships are represented as Subject → Predicate → Object triples. Confidence describes extraction strength, not the real-world importance of a relationship; lower-confidence rows may be contextual rather than explicit.
TTTA extracted 92 structured relationships around Phosphine. Examples in this analysis include Phosphine → is a → highly toxic respiratory poison and Phosphine → is a → attractive fumigant because it is lethal to insects and rodents. The table shows each extracted connection, where it came from and its confidence.
Subject
Predicate
Object
Confidence
Src
Phosphine
is a
highly toxic respiratory poison
0.90
text
Phosphine
is a
attractive fumigant because it is lethal to insects and rodents
0.90
text
Phosphine
is a
only widely used
0.90
text
Phosphine
related to Explosiveness
It
0.60
section
Phosphine
related to External links
International Chemical Safety Card
0.60
section
Phosphine
related to External links
NIOSH Workplace Safety
0.60
section
Phosphine
related to External links
Health Topic
0.60
section
Phosphine
related to Fumigant (pest control)
As
0.60
section
Phosphine
related to Fumigant (pest control)
AlP
0.60
section
Phosphine
related to Fumigant (pest control)
Ca3P2
0.60
section
Phosphine
related to Fumigant (pest control)
Zn3P2
0.60
section
Phosphine
related to Fumigant (pest control)
These
0.60
section
No triples extracted yet.
Related concept clusters Concept neighborhoods
Concept neighborhoods group terms that sit near one another in the extracted graph. They are useful for discovering adjacent language and context, but proximity does not by itself imply a factual relationship.
The concept neighborhoods around Phosphine bring nearby vocabulary together. In this analysis, examples include Gas, Acid and Used. Use the clusters to find adjacent concepts and terminology that may deserve separate research.
Phosphine
Gas
Acid
Used
Phosphorus
High
Water
Phosphide
Highly
Formula
Air
P2h4
Ph3
phosphine
Gas
Acid
Used
Phosphorus
High
Water
Phosphide
Highly
Formula
Air
P2h4
Ph3
chemical formula
Name
Solid
Niosh
Safety
Toxic
Formula
Phosphorus
Health
Flammable
Fumigant
Odor
Structure
hydrogen bonds
Structure
Form
Water
Phosphide
Acid
Calcium
Dipole
Moment
Phosphides
Fumigant
Name
Odor
phosphoric acid
Water
Fumigant
Phosphides
Hydrogen
Phosphine
Also
Phosphide
Phosphorus
Name
Odor
Solid
Structure
phosphorous acid
Water
Fumigant
Phosphides
Hydrogen
Phosphine
Also
Phosphide
Phosphorus
Name
Odor
Solid
Structure
tris(cyanoethyl)phosphine
Gas
Acid
Used
Phosphorus
High
Water
Phosphide
Highly
Formula
Air
P2h4
Ph3
hydrogen chloride
Structure
Form
Water
Phosphide
Acid
Fumigant
Name
Odor
Phosphorus
Solid
Bonds
Dipole
Connections between topic areas Semantic bridges
Semantic bridges connect parts of the graph that would otherwise be more separate. A bridge is a structural signal in this analysis, not a claim that the two topic areas are equivalent.
For Phosphine, one of the stronger structural bridges in this analysis connects Phosphine with Structure and reactions. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.
Number of nodes, edges, triples, density and central hubs. Use it to gauge the size and connectivity of the map.
Phosphine
Nodes97
Edges96
Triples92
Avg. degree1.98
Density0.020619
Components1
Source & methodology
TTTA analyzes the structure around Phosphine to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History & Applications, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.
