Zinc pyrithione is known for its antifungal properties, which could make it especially useful for treating fungal acne. Reduce inflammation and fight bacteria. Its antimicrobial properties might help fight off bacteria, an OG cause of acne, and any inflammation that irritates pimples. It can be doped as an n-type and p-type semiconductor, which is unusual for 1the II-VI semiconductors. ZnS is a covalently bonded solid. ZnS (zinc sulfide) is an ionic compound. This is because ionic compounds are made of metals and nonmetals. Zinc (Zn) is a metal because it is found in the metals section on the left and represented in the periodic table as Zn, zinc is a transition metal, grouped with cadmium and mercury. The middling atomic number 30 has five stable isotopes of atomic weight from the dominant zinc 64 to zinc 70, plus an extra 25 radioisotopes. Zinc powder reacts with WATER; MOIST AIR; STRONG ACIDS (such as HYDROCHLORIC, SULFURIC and NITRIC); and STRONG BASES (such as SODIUM HYDROXIDE and POTASSIUM HYDROXIDE) to form flammable and explosive Hydrogen gas. Crystals or small cleavage pieces of the five known polymorphs1 of zinc sulfide, when heated in air for 16 hours at 800° C. Exposure to Zinc Oxide can cause "metal fume fever." This is a flu-like illness with symptoms of a metallic taste in the mouth, headache, fever and chills, aches, chest tightness and cough. The symptoms may be delayed several hours after exposure and usually last a day or two. If you are looking for high quality, high purity and cost-effective zinc sulfide, or if you require the latest price of zinc sulfide, please feel free to email contact mis-asia.