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Phosphate Precipitation using Lanthanum Chloride

Question asked by William Kirkwood on Oct 8, 2018

I want to precipitate Phosphate from tank water in a marine aquarium.  LaCL3 + PO4(-3) -> LaPO4 (insoluble crystals)

 

What mass of Lanthanum (III) Chloride (LaCL3) would be needed to reduce PO4 in 38 litres by 1 ppm?

 

And at room temperature what mass of  LaCL3 could be added to 100 ml of pure water before it reaches saturation?

 

I did chemistry nearly 30 years ago and have lost all my knowledge. Any help much appreciated.

 

Thanks,

 

William

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