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what is thomas slag? and what is its formula?from the chapter of metallurgy in IIT advanced chemistry syllabus.

what is thomas slag? and what is its formula?from the chapter of metallurgy in IIT advanced chemistry syllabus.                                 

Grade:12th pass

1 Answers

shrinath gupta
34 Points
8 years ago
Thomas slag is tetracalcium phosphate.
Tetracalcium phosphate is the compound Ca4(PO4)2O
has a Ca/P ratio of 2, making it the most phosphorus poor phosphate. 
found as the mineral HILGENSTOCKITE, which is formed in industrial phosphate rich slag (called "Thomas slag").
This slag was used as a fertiliser due to the higher solubility of tetracalcium phosphate relative to apatite minerals.

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