Something about the Synthesis Method of Lanthanum Acetate for Preparing Lanthanum Tungsten Electrode – II

This article tells about the procedures on another synthesis method of lanthanum acetate preparation. Lanthanum acetate is the raw material for preparing the lanthanum tungsten electrode.

The experimental preparation procedure is shown as bellow:

1. Weigh 10g of lanthanum oxide, and then dissolve it in 50% acetic acid solution, whose capacity is 500mL, and heat it with a steam bath. Generally, lanthanum oxide can be completely dissolved, if a small amount of oxide remaining in the bottom of the container, then it needs to be filtered.

2. Place the resulting supernatant on the 75 ℃ water bath, and heat it to remove most of the solvent.

3. Until the solution is cooled and then precipitates crystals, then filter crystals, and then place it in a vacuum dryer, which is equipped with particulate NaON and magnesium perchlorate; dry it by evacuating to get lanthanum acetate hydrate.

 

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