Solid Solution
Solid Solution - Related Videos
01:24
Solid–Solid Solutions
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2026
The temperature-composition phase diagram of two solids, A and B, which are immiscible in the solid phase but form miscible liquids, shows that when the temperature is low, these two exist as separate, pure solids (A and B). As the temperature increases, they transition into a single-phase liquid solution where A and B coexist. Moving from point a1 to a2 in the phase diagram, the composition changes such that solid B begins to separate from the solution, enriching the remaining liquid with A.
01:29
Liquid–Solid Solutions
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2026
The process of a solid dissolving in a liquid to form a solution is governed by the solubility limit, which is the maximum amount of the solid substance, or solute, that can be dissolved in a specific volume of the liquid or solvent. As the solute dissolves, it reaches a point where no more solute can be dissolved at a given temperature - this is known as the saturation point. However, if further solute is added and it manages to dissolve, the solution becomes supersaturated. Supersaturated...
01:10
Recrystallization: Solid–Solution Equilibria
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2024
Recrystallization is a purification technique used to separate impurities from solid compounds. In this technique, no chemical reactions occur. Instead, it exploits physical properties only, specifically, the solubility differences between the desired compound and impurities, either at a single temperature or at different temperatures, and under other selected conditions. The solid-solution equilibrium (solubility equilibrium) of each component in the solution represents a binary phase...
10:19
Synthesis and Testing of Supported Pt-Cu Solid Solution Nanoparticle Catalysts for Propane Dehydrogenation
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2017
A convenient method for the synthesis of 2 nm supported bimetallic nanoparticle Pt-Cu catalysts for propane dehydrogenation is reported here. In situ synchrotron X-ray techniques allow for the determination of the catalyst structure, which is typically unobtainable using laboratory instruments.
10:42
Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of Chalcogenidoplumbates(II or IV)
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Cited by 1 •
2016
The synthesis of chalcogenidoplumbates(II,IV) via the in situ reduction of nominal "PbCh2" (Ch = Chalcogen) and via a solid-state reaction and subsequent solvothermal reactions is presented. Additionally, reactivities of plumbate(II) solutions are portrayed, which yield the heaviest-known CO homolog known to date: the µ-PbSe ligand.
FAQs
In a substitutional solid solution, dissolved particles replace host particles at existing lattice sites. In an interstitial solid solution, smaller particles occupy spaces between host particles without directly replacing them. This distinction affects how composition changes influence the crystal structure and helps explain why particle size is an important factor in determining which type of incorporation can occur.
Particle size affects whether an added atom, ion, or molecule can fit comfortably into a lattice site or interstitial space. Charge influences compatibility between host and dissolved particles, while temperature affects solubility and phase stability. Together, these variables determine how much of one substance the crystal lattice can accommodate while maintaining the solid phase.
Changing composition changes the relative amounts of host and dissolved particles within the lattice. If the resulting arrangement remains compatible with the crystal structure, the material can retain a stable single phase. Phase-diagram analysis helps relate composition and temperature to phase stability, allowing chemists to identify conditions under which a solid solution forms or remains stable.
A solid solution maintains one homogeneous solid phase even though its composition varies through incorporated particles. A material containing multiple solid phases has compositionally or structurally distinct regions, so its behavior cannot be described by one uniform lattice. This distinction matters when interpreting phase diagrams and when connecting composition changes to properties such as melting behavior or conductivity.
Chemists use phase diagrams to examine how composition and temperature relate to solid-phase stability. These diagrams help indicate whether a chosen composition can remain within a solid-solution region or enter conditions associated with different phases. Such analysis supports the selection of compositions for materials whose strength, conductivity, color, or melting behavior must be controlled.
Solid solutions are important in alloy design, ceramics, semiconductors, and minerals. In each area, controlled incorporation of one substance into another lattice can change chemical, mechanical, or electronic behavior. Researchers therefore use them to connect crystal composition with practical material performance, including strength, conductivity, color, and melting characteristics.