Combined with the product morphology analysis in Section 3.2, it can be inferred that the magnesium oxychloride composed of Mg2 (OH) 3CL · 4H2O is radial in the environment of low humidity and low pressure and unlimited growth space; In the environment of high humidity and limited growth space, it is in the shape of dandelion polymerization. Due to the directional growth of crystals, it is very easy to induce the specimen to expand and crack.
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