The Importance of Measuring Quinoline Insoluble Matter

The Importance of Measuring Quinoline Insoluble Matter in Coke Testing

In carbon material industries, assessing the purity and structure of coke is essential for quality control and downstream processing. The Coking Solid Quinoline Insoluble Matter Tester from Changsha Friend Experimental Analysis Instrument Co., Ltd. is specifically designed to quantify insoluble matter in coke and pitch.

Quinoline Insoluble (QI) matter refers to carbonaceous particles that do not dissolve in hot quinoline. High QI values indicate impurities or incomplete carbonization, which can affect product strength, conductivity, and chemical stability. The test is crucial for producers of electrode materials, graphite, and refractories.

The tester operates by mixing the coke or pitch sample with quinoline under heat and agitation. After filtration and drying, the residue is weighed to determine the QI content. Accurate temperature control and uniform mixing ensure reliable and reproducible results.

Used extensively in quality control labs and R&D centers, this tester helps optimize raw material selection, monitor production parameters, and ensure product consistency across batches.

Technical Features and Operating Guidelines of a Coking Solid Quinoline Insoluble Matter Tester

The structural design of the Coking Solid Quinoline Insoluble Matter Tester integrates precision heating, chemical resistance, and efficient filtration components. These features support its application in high-purity material analysis.

Constructed from corrosion-resistant materials, the test chamber and reaction vessels endure repeated chemical exposure. The thermal system enables uniform heating to ensure complete quinoline interaction. Additionally, the integrated stirrer provides homogeneous mixing, crucial for valid insolubility assessment.

Before testing, sample preparation requires grinding to a defined particle size and drying to remove moisture. The test duration and temperature must follow standardized protocols. The instrument's filtration setup is optimized to retain fine particles while allowing quinoline to pass efficiently.

Proper ventilation and use of protective gear are critical due to the volatile nature of quinoline. Changsha Friend Experimental Analysis Instrument Co., Ltd. provides detailed operational manuals and safety recommendations to assist laboratories in complying with chemical handling regulations.