Definition

Noun: A technique in analytical chemistry that involves precisely measuring and recording the change in a substance's mass as its temperature is increased or decreased in a controlled manner. This measurement is used to analyze the composition, stability, and thermal properties of materials.

Usage

Thermogravimetry is used to study processes such as decomposition, oxidation, dehydration, and loss of volatiles. It is a key method in materials science, polymer analysis, and pharmaceutical development. - The primary instrument used is called a thermogravimetric analyzer (TGA).

Examples

• Noun:
  • Thermogravimetry revealed that the polymer began to decompose at 300°C.
  • The researcher used thermogravimetry to determine the moisture content of the ceramic powder.
  • Thermogravimetry is an essential technique for characterizing the thermal stability of new compounds.

Advanced Usage

• "to perform thermogravimetry": to conduct this specific analytical procedure.
  • We need to perform thermogravimetry on the sample to understand its degradation profile.
• "thermogravimetry data": the recorded measurements (mass vs. temperature) from the analysis.
  • The thermogravimetry data showed two distinct weight-loss steps.

Variants and Related Words

• Thermogravimetric (adj): relating to or obtained by thermogravimetry.
  • The thermogravimetric curve indicated high thermal stability.
• Thermogravimetric Analysis (TGA) (n): the full name for the technique; often used interchangeably with "thermogravimetry."
  • The results from the thermogravimetric analysis were conclusive.

Synonyms

• Thermogravimetric analysis (TGA): (The most direct synonym, referring to the same technique.)
• Thermal gravimetric analysis: (A less common variant of the full term.)

Related Terms and Concepts

• Differential Thermal Analysis (DTA): A related technique that measures temperature differences between a sample and a reference.
• Differential Scanning Calorimetry (DSC): A complementary technique that measures heat flow instead of mass change.
• Decomposition temperature: A key parameter often determined via thermogravimetry.

Noun

1. the measurement of changes in weight as a function of changes in temperature used as a technique of chemically analyzing substances