Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

Solid hydrogen

Solid hydrogen is the solid state of the element hydrogen. At standard pressure, this is achieved by decreasing the temperature below hydrogen's melting point of 14.01 K (−259.14 °C; −434.45 °F). It was collected for the first time by James Dewar in 1899 and published with the title "Sur la solidification de l'hydrogène" (English: On the freezing of…

Standards, Molecular solid hydrogen & Overview

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around Solid hydrogen. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

Molecular solid hydrogen

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Solid hydrogen

Nodes16
Edges15
Triples31
Avg. degree1.88
Density0.125
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

Solid hydrogen

Top relations

related to Molecular solid hydrogen · 23
Solid hydrogen → At, C2/c, Density, Furthermore, Gibbs, GPa, H2, Identifying, If, Nevertheless, On, P21/c, Pc, Phase, Phase II, Phase III, Phase IV, Quantum Monte Carlo, Raman, These
related to Further reading · 5
Solid hydrogen → Air Force Rocket Propulsion, Bulk Thermophysical Properties, Laboratory, Melting Characteristics, Technical Report
related to External links · 2
Solid hydrogen → Properties, Solid
is a · 1
Solid hydrogen → solid state of the element hydrogen

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

hydrogen solid phase low structures temperature gpa molecules atomic pressure 1899 molecular temperatures pressures h2 occurs ii raman spectra achieved

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Solid hydrogenis asolid state of the element hydrogen0.90text
Solid hydrogenrelated to External linksProperties0.60section
Solid hydrogenrelated to External linksSolid0.60section
Solid hydrogenrelated to Further readingMelting Characteristics0.60section
Solid hydrogenrelated to Further readingBulk Thermophysical Properties0.60section
Solid hydrogenrelated to Further readingAir Force Rocket Propulsion0.60section
Solid hydrogenrelated to Further readingLaboratory0.60section
Solid hydrogenrelated to Further readingTechnical Report0.60section
Solid hydrogenrelated to Molecular solid hydrogenAt0.60section
Solid hydrogenrelated to Molecular solid hydrogenGPa0.60section
Solid hydrogenrelated to Molecular solid hydrogenH20.60section
Solid hydrogenrelated to Molecular solid hydrogenPhase0.60section

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.