In addition to many differences in physical and chemical properties, the most obvious difference between ammonium metatungstate (AMT) and ammonium paratungstate (APT) is water solubility. Ammonium metatungstate has high solubility in water, and its solubility can reach 300g/100gH2O at 20°C, which can be used to prepare high-concentration tungstate solution without alkali metal ions; ammonium paratungstate is completely different, ammonium paratungstate is insoluble in water. Therefore, in actual work, it is easy to simply distinguish between ammonium paratungstate and ammonium metatungstate by whether it is soluble in water.
In China’s tungsten product export management practice at the end of the 20th century, the export volume of ammonium metatungstate was very small, and the uses and customers were very few and concentrated. Therefore, the export of ammonium metatungstate does not require a license, so sometimes ammonium paratungstate and partial In the case of ammonium tungstate storage, customs supervisors often use their completely different water solubility to quickly and clearly distinguish the two.
More details of ammonium metatungstate product, please visit website: http://ammonium-metatungstate.com/
Please contact CHINATUNGSTEN for inquiry and order of ammonium metatungstate:
Email: sales@chinatungsten.com
Tel.: 86 592 5129595
