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Flux Chemicals for Calcareous Refractory Sample Prep
Calcareous refractories are high-temperature materials mostly composed of calcium carbonate (CaCO3). Owing to the complex reaction mechanics of carbonation, calcareous aggregates make exceptional mortars as they have a positive long-term chemical effect on mortar behaviour. Additionally, calcites exhibit exceptional thermal properties such as melting points in the region of 1330°C (2430°F). These combined thermochemical qualities make calcareous minerals ideal aggregates for refractory concrete.
All industrial materials are subject to some form of quality assurance and control (QA/QC). In this article, we will explore the beneficial properties of calcareous refractories before discussing appropriate flux chemicals for sample preparation and analysis.
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Lithium Tetraborate X-ray Flux for Alumina Fusion
Determining the volume of aluminium oxide (Al2O3), or alumina, in clays and silicates can be an arduous task. Gravimetric analysis has been classically applied, but these techniques are both time-consuming and complicated. Samples must first be decomposed using a choice of precipitants before aluminium is separated from interfering elements like iron (Fe) and titanium (Ti). The precipitate is fired to promote oxidation then weighed. This may be expressed as a percentile of overall sample weight or as alumina after ignition.
Why Use X-ray Flux Chemicals for Alumina Fusion?
Various organic reagents are proposed for quantitative precipitation of aluminium, which creates a burden of choice. Additionally, the gravimetric workflow itself is...
Using Eutectic Flux to Fuse Ferrous Ore
Precisely analysing the elemental composition of ferrous ores is critical to a range of earth exploration, metalworking, and mine mapping applications. Generally, the term ferrous is used to describe any metal containing an appreciable amount of iron per weight percentage (wt%), but its chemical designation is defined as metallic compounds containing iron(II) oxide—which is iron in the +2 oxidation state.
Chemists play a key role in winning valuable ores by helping to predict the location and relative abundance of deposits, and qualifying subsequent deposits via low-level elemental analysis. This latter process is where eutectic flux chemicals enter the metallurgical workflow.
Extracting, Treating & Analysing Iron
Iron is derived from a range ...
