Tungsten Oxide

What is Nano Tungstic Acid? Nano tungstic acid usually refers to nano yellow tungstic acid, an amorphous yellow powder. The properties of tungstic acid in water and acidic solutions are relatively stable, almost insoluble in water, soluble in alkali, slightly soluble in acid, but can react with water. And exist in a certain colloidal form. When tungstic acid is heated to 100°C, it loses a molecule of water and turns into tungsten trioxide. It is almost insoluble in acid, slightly soluble in hot water, and exhibits stable properties at temperatures below 150°C; In strong alkaline solutions, ammonia and hydrofluoric acid. Chemical formula of nano tungstic acid: H2WO4 or WO3·H2O Physical Properties Of Nano Tungstic Acid: Appearance color: light orange-yellow powder, insoluble in water. Purity: ≥99.9% Average particle size: 30~50nm Melting point: 1473℃ Nano Tungstic Acid Application: Due to its unique properties, tungstic acid was used as the most i

What Is Purple Tungsten Oxide? Purple tungsten oxide (WO2.72 or W18O49, Purple Tungsten Oxide or Violet Tungsten Oxide, VTO for short) is a kind of tungsten oxide, which is a purple finely divided crystal powder with a molecular weight of 227.36. Physical And Chemical Properties Of Purple Tungsten Oxide: Appearance: purple or blue-purple broken crystal powder Solubility: Insoluble in water, alcohol and most acids, soluble in ammonia and lye. Preparation method of purple tungsten oxide: The preparation of violet tungsten oxide is usually produced by controlling certain reducing conditions using ammonium paratungstate (APT), tungstic acid or tungsten trioxide (WO3) as raw materials. The preparation methods of violet tungsten usually include APT wet hydrogen direct reduction method, hydrogen tungstate reduction method, and APT mild reduction method. Uses of purple tungsten oxide: 1. Preparation of tungsten powder, especially the preparation of nanomet

What is Cesium Tungsten Bronze? Cesium tungsten bronze, also known as cesium tungsten oxide, is an inorganic nanomaterial with good near-infrared absorption effect. 780nm) new functional materials with high transmittance. English name: Cesium Tungsten Bronze Molecular formula: Cs0.33WO3 Molecular weight: 276 CAS number: 189619-69-0 Physical and Chemical Properties of Cesium Tungsten Bronze: The molecular structure of cesium tungsten bronze is oxygen octahedral structure, the purity is higher than 99.9%, the bulk density is 1.5g/ml, the particle size is relatively uniform, the primary particle size is about 30nm, the specific surface area is about 50m2/g, and it is not easy to agglomerate, non-toxic , Non-radioactive features. The Production Method of Cesium Tungsten Bronze: Method 1: Preparation of Cs0.33WO3 from Na2WO4•2H2O and Cs2CO3 1. Using sodium tungstate Na2WO4•2H2O as raw material, prepare a sodium tungstate solution with a concentration

What is Tungsten Disulfide? Tungsten disulfide (WS2, Tungsten Disulfide) is a low-dimensional transition metal sulfide with a layered structure similar to that of graphene. It is widely used in optoelectronics, lubrication, and energy storage due to its good mechanical, thermal, optical and electrical reasons. , medical and other fields. Physical Properties of Tungsten Disulfide: Appearance is black gray powder, density 7.6g/cm3, slightly soluble in cold water, soluble in hot water, insoluble in inorganic acids, alkalis and alcohols except concentrated nitric acid and hydrofluoric acid mixture, but soluble in molten alkali. Because W in WS2 is in an intermediate valence state, it has strong reducing and oxidizing properties, and is easy to react with hot concentrated sulfuric acid, nitric acid, aqua regia and other strong oxidants to produce WO3 or WS3; in addition, heated to 1250 in vacuum ℃ will decompose into tungsten and sulfur. Tungsten Disulfide Cryst

  Basic Trading Condition Product Name Violet Tungsten Oxide (Purple Tungsten Oxide) Details Purity:99.90% Particle Size: 12~20um Quantity:1,000.00KG Price:55 USD/KG EXW, XIAMEN, CHINA Payment:T/T in advance Delivery Time: in 20 working days Note: Re-check when quantity changed Contact Tel.:+86 592 512 9595  +86 592 512 9696 Email: sales@chinatungsten.com Business WeChat: Disclaimer The above quoted price is for reference only and shall not be used for final order. For detailed inquiry please contact us directly! What Is Purple Tungsten Oxide? Purple tungsten oxide (WO2.72 or W18O49, Purple Tungsten Oxide or Violet Tungsten Oxide, VTO for short) is a kind of tungsten oxide, which is a purple finely divided crystal powder with a m