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superphosphate

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noun su·per·phos·phate \ˌsü-pər-ˈfäs-ˌfāt\

Definition of superphosphate

  1. 1 :  an acid phosphate

  2. 2 :  a soluble mixture of phosphates used as fertilizer and made from insoluble mineral phosphates by treatment with sulfuric acid

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First Known Use of superphosphate

1798

Learn More about superphosphate

  1. Britannica.com: Encyclopedia article about superphosphate

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