Formed by the combustion of phosphorus in oxygen. It is white amorphous powder or hexagonal crystal.
It is easy to absorb moisture. Sublimation at 360 �ºC. Dissolving in water produces a lot of heat and phosphoric
acid, and the reaction to ethanol is similar to that of water. The relative density is 2.39.
Melting point 569 �ºC. It is corrosive for acid oxide, which can not be directly touched or eaten by hand or smelled directly.
Upstream raw material: yellow phosphorus
Application:
Anufacture high-purity, phosphates and phosphate esters,Desiccant.
Zinc oxide (ZnO), commonly known as zinc white, is an oxide of zinc. Insoluble in water, soluble in acids and strong bases. Zinc oxide is a common chemical additive, widely used in plastics, silicate products, synthetic rubber, lubricating oil, paint coatings, ointment, adhesives, food, batteries, flame retardant and other products in the production. Zinc oxide has large band gap and exciton binding energy, high transparency, excellent luminescence performance at room temperature, and has been used in liquid crystal display, thin film transistor, light emitting diode and other products in the field of semiconductor. In addition, microgranular zinc oxide as a kind of nanomaterial also began to play a role in related fields.
Sodium sulfide is a chemical compound known for its multiple industrial applications, primarily in the realm of metallurgy and the production of chemicals. It is a yellow to red solid or solution that serves as a powerful reducing agent, facilitating the removal of oxygen from various metal ores during ore processing, thereby aiding in the extraction of metals like copper, lead, and zinc. Sodium sulfide also plays a role in the leather industry for hair removal during leather processing and in the textile industry for dyeing and desulfurization. Additionally, it is used in wastewater treatment as a precipitating agent for heavy metals and in the production of various organic chemicals. Its versatility as a reducing and sulfur-bearing agent makes sodium sulfide crucial in multiple industrial processes.
Lithopone is a white, inorganic pigment composed of a mixture of barium sulfate (BaSO4) and zinc sulfide (ZnS). It is widely used in the production of paints, coatings, and printing inks due to its exceptional opacity and brightness. Lithopone enhances the covering power of these products, making it especially valuable in applications where whiteness and opacity are critical, such as in the manufacturing of high-quality paints and paper. It also contributes to corrosion resistance and durability in coatings. Despite its historical use, its production has declined in recent years due to environmental concerns related to the presence of barium compounds, with many industries opting for alternative white pigments like titanium dioxide. Nonetheless, lithopone's unique properties continue to make it relevant in certain niche applications within the paint and coatings industry.
