Hydrothermal synthesis has become a popular and important technique in solid state chemistry. It allows for the formation of novel compounds that cannot be formed by traditional high-temperature solid state reactions. With this technique, ammonium paratungstate can be reduced to ammonium tungsten bronze, at a lower temperature of 200 °C in nonaqueous solvents.

Tungsten carbide graver is also known as cemented carbide graver, which has higher hardness, better wear resistance and longer service life than the commonly used carbon steel graver and white steel graver. Wherein, carbon steel graver is generally suitable for beginners as it has low hardness and strength.

The ammonium paratungstate (APT) is the most important starting material in the tungsten industry, where usually its most stable APTÂ4H₂O form is used. Tungsten compounds such as, tungsten oxides, tungsten carbides or tungsten metal can be prepared with APT.  All these tungsten products have important applications in a many fields. Among which, tungsten oxides are widely used in catalysts, gas sensors, and photocatalysts. Tungsten carbide products have been used as catalysts as well, but another important application field they shared is being the hard component in cutting and drilling tools.

Tungsten carbide glass cutter is a tool used for cutting or scoring glass such as LCD optical glass, quartz glass, and crystal glass. There is a small wheel of tungsten carbide materials. Such a glass cutter has the characteristics of high hardness, good wear resistance, straight scribing, no edge collapse and long service life.