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A WG/C/XG (water glass/sodium carboxymethyl cellulose/xanthan gum) gel was created in this study by incorporating a tracer indicator into the fire protection material. The gel is both a tracer and flame retardant. First, scanning electron microscopy, UV spectrophotometer, and chromatography-mass spectrometer was used to characterize the samples. The microstructure of the WG/C/XG gel was investigated, as well as its impact on high-temperature response. The average rate of tracer gas release varies significantly before and after 55°C. Moreover, the release patterns of the two tracer gases are similar, indicating that the WG/C/XG gel is suitable for the solid loading of tracer gases. A thermal analyzer and programmed warming oxidation experiment analysis were used to investigate the inhibitory effect of WG/C/XG gel on the oxidation of spontaneous coal combustion. The experimental results demonstrated that the WG/C/XG gel improved the thermal stability of coal samples and inhibited spontaneous coal combustion. In mined areas, WG/C/XG gel is an excellent tracer material. [ABSTRACT FROM AUTHOR]