Thomas Phosphate
Title: Thomas Phosphate
CAS Registry Number: 1306-01-0
Additional Names: Thomas flour; calcium phosphate, tetrabasic
Literature References: Ca3(PO4)2.CaO also represented by 4CaO.P2O5. A byproduct of the Thomas steel process used in Europe: Iron ore of the "Minette" type from Alsace and the Rhineland contains about 2% phosphates which are combined with calcium and separated during the refining process.
Use: Agricultural fertilizer.

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