Tungstate 
 Product rating AR content 99 (%) 
 Implementation of quality standards Q/320583-102-2004 CAS 7783-03-1 
 Tungstate 
 Name tungstate 
 English name Tungstic acid; Wolframic acid 
 The formula H2WO4 Usage 
 For the system of tungsten metal, tungsten, tungsten carbide, tungsten salts; can also be used as auxiliaries. 
 CAS No. 7783-03-1 physical and chemical properties: 
 Yellow powder. Molecular weight of 249.86, the relative density of 5.5, the boiling point of 1473 ℃. Heated to 100 ° C the loss of a water molecule into the tungsten anhydride. Slightly soluble in water, soluble in alkali, hydrofluoric acid and ammonia water, almost insoluble in acid. 
 Packing and storage: 
 Reagent line production: AR AR grade, chemically pure CP level of 500 g / bottle * 20 bottles / carton; 
 Industry-specific level of 1000 g / bottle * 20 bottles / carton. 
 Industrial export grade iron drum lined with two layers of polyethylene plastic bag, barrel, net weight 50kg; 
 Refined industrial grade barrel lined with two layers of polyethylene plastic bags, barrel, net weight 25kg. 
 Industrial-grade woven bag lined with two layers of polyethylene plastic bags, packaging, net weight 25kg. 

 Should be stored in a cool, ventilated, dry coffers. Containers in good condition. Do not contact with the bases were stored, mixed operation. To prevent rain during transportation, anti-sunlight, to light-light handling to prevent the deformation of drums, the penetration of dust, pollution products. Fire, water, sand and all kinds of fire extinguishers to fight the blaze.