Definition of Superphasphate
Su`per*phos"phate (?), n. (Chem.)
An acid phosphate.
Superphosphate of lime (Com. Chem.), a
fertilizer obtained by trating bone dust, bone black, or phosphorite
with sulphuric acid, whereby the insoluble neutral calcium phosphate,
Ca3(PO4)2, is changed to the primary
or acid calcium phosphate Ca(H2PO4)2,
which is soluble and therefore available for the soil.
Su`per*phos"phate (?), n. (Chem.)
An acid phosphate.
Superphosphate of lime (Com. Chem.), a
fertilizer obtained by trating bone dust, bone black, or phosphorite
with sulphuric acid, whereby the insoluble neutral calcium phosphate,
Ca3(PO4)2, is changed to the primary
or acid calcium phosphate Ca(H2PO4)2,
which is soluble and therefore available for the soil.
- Webster's Unabridged Dictionary (1913)
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