Simultaneous Thermal Analyzer

Measures weight changes and endothermic or exothermic reaction

Simultaneous thermal analysis (STA) is an analytical technique that simultaneously measures thermogravimetry (TG) and differential thermal analysis (DTA). 

STA8122 Overview

In thermogravimetry, measuring the sample’s change in weight enables us to analyze the reaction temperature and the rate of weight change in reactions such as dehydration, thermal decomposition, evaporation, oxidation. Differential thermal analysis (DTA) measures the endothermic or exothermic reaction temperatures such in transition, melting, crystallization, dehydration, decomposition, oxidation and glass transition temperature. Using it as TG-DSC is also possible by converting the DTA to DSC thru calibration using the melting peaks of standard metals.

Rigaku’s TG-DTA adopts the horizontal differential triple-coil balance that cancels various fluctuations causing TG drift to achieve a highly accurate weight change measurements. Also, the sample controlled TG (SCTG) method is equipped as a standard. This is a method where the temperature is controlled by the rate of the sample’s change in weight and has 2 modes, namely constant reaction control (CRC) and stepwise isothermal analysis (SIA). 

Furthermore, the sample observation TG-DTA can perform measurements while capturing visual images of the sample with a CCD camera. Thru these images, we can observe shape changes or color changes in the sample associated with a reaction. These images are helpful in interpreting TG-DTA results.

STA8122 Features

Accurate compensation on horizontal differential triple-coil balance
Compact furnace greatly speeds up heating and cooling
Dynamic TG measurement modes
Stepwise isothermal analysis (SIA) method
Constant rate control (CRC) method
Measuring temperature range
Standard model : Ambient to 1100°C
High-temperature model : Ambient to 1500°C
Sample observation model : Ambient to 1000°C

STA8122 Videos

STA8122 Specifications

Technique Simultaneous thermal analysis
Technology Horizontal differential thermogravimetric-differential thermal analyzer (TG-DTA)
Core options ASC, Sample observation unit
Computer External PC
Dimensions 350(W) x 310(H) x 669(D) (mm)
480(W) x 483(H) x 669(D) (mm) w/ ASC
Mass 28 kg (43 kg w/ ASC)
Power requirements 1Ø, AC100-120 V/200-240 V 50/60 Hz 15 A

STA8122 Resources

Rigaku Journal articles

adobeSimultaneous measurement system of thermogravimetrydifferential thermal analysis and photoionization mass spectroscopy equipped with a skimmer-type interface Read the Article

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