Molybdenum market quotation in China: sodium molybdate, ammonium molybdate and ammonium heptamolvbdate prices remain stable on December 19, 2022 with the impact of the decline in international molybdenum price. 

The preparation of tungsten oxide film includes sol-gel technique from ethanol acetylated tungsten peroxide sols containing varying amounts of organic matter, namely oxalic acid dehydrate (OAD). The chemical properties of the precursor solution were changed by varying the proportion of dopants, allowing the microstructure of the films to be altered, which are otherwise amorphous to X-rays.

Tungsten oxide films are able to switch rapidly between transparent and blue states. These are the counteractions of the mesoporous structure and the interconnected nanocrystalline phases. Deepa et al. compared the electrochromic properties of sol-gel-derived amorphous and nanocrystalline tungsten oxide films. The pristine acetylated tungsten peroxide sol with and without the addition of 4 wt% oxalic acid dehydrating agent (OAD) produced nanocrystalline and amorphous tungsten oxide (WO₃) films, respectively, by the impregnation technique.

The researchers found that the thickness and content of the tungsten oxide film were found to vary depending on the concentration of the PAA coating solution (1.0-3.0 wt%), and thus the electrode performance of the PAA/WO₃ layer could be easily controlled. The special applications for WO₃ films include photoelectrochemical and electrochromic devices. Clara Santato et al. used a novel sol-gel method to prepare mesoporous tungsten trioxide nanocrystals consisting of preferentially oriented monoclinic phase semiconductor films.

Analysis of latest tungsten market from Chinatungsten Online

China’s ferro tungsten and tungsten powder prices show a stable trend for the time being, mainly due to the strong rised mentality of raw material manufacturers. 

This week, China rare earth price showed a pattern of first stabilizing and then rising. Under the influence of both weak supply and demand and the increasing number of positive factors, the price game among traders was fierce, that is, the confidence of suppliers in firm quotations was generally strong, and the sentiment of buyers to suppress prices continued. 

China tungsten price showed a sharp upward trend in the week ended on Friday December 16, 2022. Under the interweaving of optimistic and negative factors, the seller’s market has an obvious advantage, which is mainly reflected in the strong bullish sentiment in the market, the order quantity is acceptable, and the price increase of most molybdenum chemical products is higher than the previous one.

Analysis of latest tungsten market from Chinatungsten Online

The prices of ammonium metatungstate (APT) and tungsten carbide powder stabilize on December 14, 2022 as the consumption failed to meet market expectation.

Analysis of latest tungsten market from Chinatungsten Online

China tungsten price is in the upward trend in the middle of December mainly driven by rised mentality of raw material manufacturers, the stock-up expectations at the end of the year, the increase in long-term contract prices from large companies, and the emergence of a new turning point for domestic epidemic prevention and control. 

China rare earth price is in a stalemate on December 14, 2022 mainly due to weak supply and demand. In the case of small stocks of some rare earth raw materials and supported by production costs, suppliers are generally less willing to cut prices, coupled with low downstream demand, the market is less active.