微溶于冷水,溶于热水。硫化钨作为固体润滑剂(其润滑性能优于二硫化钼)，具有以下特点： 1、具有很低的摩擦系数（0.03），较高的抗极压性能和抗氧化性能（空气中650℃分解，真空中2000℃分解）。适用于高温、高压、高真空、高负荷、高转速、高辐射、强腐蚀、超低温等各种苛刻条件下的润滑。熔点1250℃。2，对金属表面有很好的吸附能力。可用作润滑剂。性能比二硫化钼好，摩擦系数较低，抗压强度较大。单独用于高温、高压、高转速、高负荷，以及在化学性活泼介质中运转的设备。与其他物料配制的锻压、冲压润滑剂，能延长模具寿命，提高产品光洁度。与聚四氟乙烯和尼龙等 配制的填充材料，可用于制自润滑部件。 Tungsten(IV) sulfide is an inorganic chemical compound that occurs naturally as the rare mineral tungstenite. It is most commonly used as hydrogen and lithium storage material, as material for lithium battery cathodes, as a component of batteries and other electrochemical devices, as a dry lubricant, and as a catalyst in hydrodesulfurization of crude oil. Due to its layered structure, tungsten(IV) disulfide forms inorganic nanotubules, which are being investigated for potential applications such as epoxy reinforcement, uses in impact-absorbing materials, and as a means to preserve or guide nanometer-scale amounts of material. A component of catalysts and batteries