Bismuth Phosphotungstate
Chinese Name: 磷钨酸铋
English Name: Bismuth Phosphotungstate
Chemical Formula: BiPW12O40
Appearance: Green Powder
Bismuth phosphotungstate is a bismuth salt of phosphotungstic acid, prepared from raw materials of phosphotungstic acid and bismuth trichloride by metathesis method, microwave solid-phase synthesis method. Phosphotungstic acid bismuth is a new type of green polyoxometalate catalyst, can be used in catalytic synthesis of oleic acid n-butyl acetate, heterogeneous catalytic synthesis of cyclohexyl acetate and other researches.
Bismuth Phosphotungstate to Prepare Metathesis Method
1. Weigh 11.5g (4mmol) phosphotungstic acid (HPW) and dissolve in 10mL of water to completely dissolve with constant stirring;
2. Add 1.3g (4mol) bismuth trichloride (BiCl3) to the above solution and stir for 2h to carry out a metathesis reaction, the reaction formula as follows:
H3PW12O40+BiCl3→BiPW12O40+3HCl
3. Place the resulting solution in oven for drying for 4 hours at 110℃ to give an off-white solid;
4. Generate the green solid powder of bismuth phosphotungstate after calcining at 400℃ for 3 hours.
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