Tungsten Oxide

Tungstic acid is the generic term of all kinds of hydrates of tungsten oxide (WO 3 ), polymer compound which formed by the combination of tungsten trioxide WO 3  and then united with water at different ratios and formations. If you have any inquiry of  tungsten , please feel free to contact us: Email:  sales@chinatungsten.com / sales@xiamentungsten.com Tel.: +86 592 5129696/+86 592 5129595 Fax: +86 592 5129797 Scan QR code of Chinatungsten Wechat platform to follow up the daily latest price and market of tungsten, molybdenum and rare earth.

Lead tungstate crystals have become a new generation of scintillating materials due to the high density, short radiation length and Moliere radius fast flicker decay time, strong anti-radiation damage ability, air deliquescence, chemical stability and low price. In recent years, lead tungstate crystals have also attracted attention in the field of nuclear medical equipment applications, especially in the positron emission tomography (PET) and other nuclear medicine imaging has become a hot research at home and abroad. However, lead tungstate scintillation crystals have many advantages, but lower fluorescence yields limit the use of lead tungstate crystals in high energy applications. Therefore, to improve the fluorescence yield of lead tungstate, we can better expand its field of application. At present, there are commonly used ways to improve the low light yield of lead tungstate crystals: (1) Improve the growth conditions, improve the purity of raw materials and adjus

Nitrate nitrogen refers to the nitrate fertilizer contained in nitrate, which is mainly used in fruit trees. It can stop the development and deformity of fruit. It is one of the main fertilizers for crop growth and prolonging crop growth and harvesting period,it plays a crucial role in the growth of crops. However, the use of nitrate nitrogen is a double-edged sword, on the one hand, nitrogen fertilizer can improve the yield of crops, on the other hand, the excessive use of nitrogen fertilizer will also pollute the rivers and lakes, soil and underground water, resulting in major rivers appear eutrophication, algal growth, leading to ecological extinction. How can you find a balance between efficiency and the environment? Scientists have been trying to find the answer. Some scholars think of sodium tungstate . Sodium tungstate has been widely used because of its low toxicity, no harm to environment, human body and crops, and no breeding of microorganisms. Some scholars have add

Corrosion inhibitor is a kind of substance which can prevent or retard the corrosion of metal in environmental medium under low concentration. It can be divided into three kinds: inorganic inhibitor, organic inhibitor and polymer inhibitor. Commonly used cooling water corrosion inhibitors are chromate, nitrite, phosphate and so on, but they all have one characteristic, that is, toxic. With the enhancement of human's environmental protection consciousness, the development and application of low toxic or nontoxic inhibitors have been paid attention to. Sodium tungstate is one of inorganic inhibitors. It is used as a metal corrosion inhibitor because of its low toxicity, no harm to environment, human body and crops, and no microorganism breeding. Using sodium tungstate as a metal is a corrosion inhibitor, not only effective, but also green. Some scholars used sodium tungstate inhibitor to test the corrosion inhibition of sea water on carbon steel, in the experiment,

Tungstate is the most classic one of the inorganic luminescent materials, as early as in 1896, scientists found that CaWO 4  can be applied to X-ray emission. In 1906 for the first time to be used as X phosphor materials, tungstate materials quickly penetrate into all aspects of human life. In 1948, people found that the brightness of tungstate with compound purity increases, tungstate can be launched by some elements, these rare earth elements doped tungstate lattice, can make it shine with special properties. In recent years, the energy-saving lighting industry has developed vigorously. However, the efficient lighting products are unable to avoid the mercury pollution problems while saving electricity and reducing energy consumption, with the developing of tungstate phosphors, LED has gradually become the market mainstream. Tungstate phosphors are those that can absorb energy (the absorbed energy including electromagnetic wave (including visible light, ultraviolet X ra

A tungsten heteropoly acid phtocatalyst is composed of heteropoly acid and its salt, it consists of a central (hetero) atom (P, Si, etc.) and a coordinated (multi) atom W. A group of metal complexes of oxygen groups bridged by oxygen atoms into space, which can be widely used in homogeneous and heterogeneous catalysis systems. Because of the development of petrochemical industry, especially the fine chemical industry, the multifunction of catalysts has become a new research target, tungsten heteropoly acid photocatalyst is a bifunctional catalytic material with acidity and basicity and redox property. It is an environmentally friendly catalyst and can reduce environmental pollution and equipment corrosion. Therefore, it is of great significance to study the new catalytic process. Under visible light or UV irradiation, tungsten heteropoly acid is excited to become a strong oxidant and can oxidize various organic compounds in water. Its photocatalytic activity is almost a

Lead tungstate is a kind of tungstate . It has attracted extensive attention because of its luminescent properties and radiation resistance. The results show that the lead tungstate crystal can exhibit blue, green and red absorption at a certain wavelength, and the requirement of attenuation time and radiation damage is far beyond the requirement of light yield. The main preparation methods of lead tungstate are solid phase method and liquid phase method. But for the preparation of nano lead tungstate, liquid phase method is usually adopted, and precipitation method is one of liquid phase method. The starting materials prepared by precipitation of    nano  lead  tungstate  particles with 99% purity of lead nitrate and 99.5% sodium  tungstate , with deionized water as solvent, polyethylene glycol (PEG 200) as a dispersant to prepare  nano  lead  tungstate   powder. According to the chemical dosage ratio of lead nitrate and sodium tungstate were dissolved in deioni

Molasses alcohol wastewater is produced by molasses fermentation in alcohol workshop of sugar refinery and high concentration and high chroma organic wastewater discharged later. It riches in protein and other organic compounds, but also contains more N, P, K, Ca, Mg and other inorganic salts and higher concentrations of SO 4 2-  and so on, most of these acidic waste water, and high chroma, will seriously pollute the water, the environment, or cause compaction of soil acidification, crop long illness. The main methods of treating molasses alcohol wastewater are irrigation, concentration, anaerobic and aerobic methods, biological products and EM bacteria technology, in addition to not producing biological products, other methods continue to harm the environment, or the cost is too high, unrealistic, will there be a feasible strategy for the best of both worlds? In recent years, with the development of photocatalytic technology of nano tungstate , more and more tungsta