Keggin-type phosphotungstic acid, that is, phosphotungstic heteropoly acid. Generally, phosphotungstic acid with this structure refers to dodecaphosphotungstic acid, and its structural formula is H3PW12O40.nH20. It belongs to a solid strong acid, which can be used as a catalyst in organic catalytic reactions and has excellent catalytic performance.
Keggin-type phosphotungstic acid, that is, phosphotungstic heteropoly acid. Generally, phosphotungstic acid with this structure refers to dodecaphosphotungstic acid, and its structural formula is H3PW12O40.nH20. It belongs to a solid strong acid, which can be used as a catalyst in organic catalytic reactions and has excellent catalytic performance. The pure product is generally light yellow crystal or white powder. The reason for the difference in color is that the amount of crystal water contained is different. Those with more crystal water are generally light yellow, and vice versa. It is easily soluble in water, alcohol, ether, etc., and has the highest solubility in ether. Therefore, ether extraction is often used to separate phosphotungstic heteropoly acid aqueous solution in the laboratory. It can react with strong acid such as concentrated hydrochloric acid to produce yellow emulsion. Phosphotungstic heteropolyacid has a three-level structure: the primary structure of polyanions, the secondary crystal structure of polyacids and their salts obtained by combining polyanions and counter ions, and the three-part composition of polyanions, counter ions and crystal water. Tertiary structure.
More details of tungstic acid product, please visit website: tungstic-acid.com
Please contact CHINATUNGSTEN for inquiry and order of tungstic acid:
Email: sales@chinatungsten.com
Tel.: 86 592 5129595
