High-density tungsten alloy, a functional material with tungsten as its base (85%–99%) combined with metals like nickel, iron, and copper through powder metallurgy sintering, boasts a density of 16–18.5 g/cm³ along with high strength, wear resistance, and corrosion resistance. In the automotive field, its core advantages as a counterweight block include precise weight adjustment in a small volume, minimizing space usage; strong chemical stability to withstand the high temperatures and humidity of engine compartments; and eco-friendliness, aligning with global automotive industry green standards.

Compared to sodium tungstate, potassium tungstate (K₂WO₄) exhibits distinct solubility and chemical reactivity due to the introduction of K⁺ ions. From its role as an intermediate in metallic tungsten production to its function as an additive in photovoltaic cell electrolytes, this compound leverages an intrinsic logic of "ionic properties-crystal structure-application" to build perse application scenarios in energy, materials, and analytical chemistry.

Zinc tungstate (Tungsten Zinc, ZnWO₄), also known as zinc tungsten oxide, belongs to the tungstate family. It is formed by the chemical bonding of palent zinc ions (Zn²⁺) and tungstate ions [(WO₄)²⁻], resulting in a wolframite-type crystal structure. In semiconductor research, its photoelectric properties and catalytic activity offer new possibilities for developing novel optoelectronic devices and environmental purification materials, demonstrating significant application potential in energy and environmental fields.

Compared to alkali metal tungstates (e.g., sodium tungstate and potassium tungstate), calcium tungstate (CaWO₄) exhibits markedly different crystal structures and properties due to the incorporation of Ca²⁺, evolving from its industrial designation as "synthetic scheelite" to its core application as a scintillator material.