Description: Violet tungsten oxide shorted for VTO, chemical formula is WO2.72 or W18O49, prepared by APT wet hydrogen reduction, tungstic acid hydrogen reduction and APT mild reduction method, mainly used for manufacturing tungsten powder and tungsten carbide powder.
What is Violet Tungsten Oxide ? Violet tungsten oxide is named by its violet crystalline powder appearance, shorted for VTO.
Chinese Name:紫色氧化钨；紫钨 English Name: Violet Tungsten Oxide Abbr: VTO Chemical Formula: WO 2.72 or W 18 O 49 Molecular Weight: 227.36 HS Code: 2825901990 Appearance: Violet fine crystalline powder Solubility (water): Insoluble Solubility (Other solvent): Insoluble in alcohol and most of acid, soluble in ammonia water, alkali solution
Violet tungsten oxide is manufactured under a certain reduction condition from the raw materials of ammonium paratungstate (APT), tungstic acid or tungsten trioxide (WO 3 ). The preparation methods of violet tungsten oxide are mainly APT wet hydrogen direct reduction, tungstic acid hydrogen reduction and APT mild reduction method ect.