tin pest

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tin pest

Tin pest can cause old tin objects to crumble into gray powder in freezing conditions.

Definition

Noun: - A metallurgical phenomenon: The allotropic transformation of the metallic element tin from its common, stable white beta form (β-tin) into a brittle, powdery grey alpha form (α-tin) at temperatures below 13.2°C (approximately 55.8°F). This process is also known as "tin disease" or "tin plague."

Usage
  • The term is used specifically in metallurgy, chemistry, and historical contexts to describe a structural decay of tin objects.
  • It describes the process itself, not the resulting material (which is "grey tin").
Examples
  • Noun:
    • The old organ pipes were ruined by tin pest, which turned them into a crumbly grey powder.
    • Scientists stored the pure tin sample in a freezer to study the slow progression of tin pest.
    • Conservators of historical artifacts must control temperature to prevent tin pest in tin-based objects.
Advanced Usage
  • "To succumb to tin pest": To undergo the transformation.
    • The tin buttons on the antique uniform succumbed to tin pest after decades in a cold attic.
  • The process is autocatalytic, meaning the presence of grey tin accelerates the conversion of more white tin.
Variants and Related Words
  • Tin disease (n): A synonym for tin pest.
  • Tin plague (n): A synonym for tin pest.
  • Grey tin (n): The allotropic form of tin that results from tin pest.
  • White tin / β-tin (n): The common, metallic form of tin stable at room temperature.
  • Allotropy (n): The property of some chemical elements to exist in two or more different physical forms.
Synonyms
  • Tin disease
  • Tin plague
Notes
  • Tin pest is a classic example of an allotropic transformation in materials science.
  • The transformation is very slow near the transition temperature but accelerates in colder conditions.
  • Historically, it was a serious problem for organ pipes, soldiers' uniform buttons, and tin utensils in cold climates before the phenomenon was fully understood.
tin pest

Tin pest can cause old tin objects to crumble into gray powder in freezing conditions.

Noun
  1. the transformation of ordinary white tin into powdery grey tin at very cold temperatures

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