Question

Thomas slag is :
A. $C{a_3}{(P{O_4})_2}.2{H_2}O$
B. $C{a_3}{(P{O_4})_2}.CaSi{O_3}$
C. $MgSi{O_3}$
D. $CaSi{O_3}$

Answer 1

In the given question firstly we have to define the exact Thomas Slag are. Now after that we can use this information and do the step by step work of finding the correct option among the following in the case of this problem by process of elimination.

Complete step by step answer:
The given question statement asks about the entire process through which we would be able to get the proper and correct explanation of Thomas Slag. So we have to explain what exactly Thomas Slag.
Thomas slag is the chemical compound with the chemical name as Tetracalcium phosphate is the compound.
Thomas Slag is also considered as the most basic of the calcium phosphates. It also has a Ca/P ratio of 2 which indeed makes it as the most phosphorus poor phosphate in the table. Now it is also found as the mineral hilgenstockite, this is indeed formed in industrial phosphate rich slag thus the given result is called "Thomas slag". This slag was used as a fertiliser due to the higher solubility of tetracalcium phosphate relative to apatite minerals. Now we know that the Tetracalcium phosphate is a component in some calcium phosphate cements that have medical applications

So, the correct answer is Option B.

Note: Tetracalcium phosphate cannot be prepared in aqueous solution, any precipitates having the correct Ca/P ratio contain hydroxide ions in apatitic phases. Tetracalcium phosphate is stable in water at room temperature for up to four weeks, but at higher temperatures hydrolyses to hydroxyapatite and calcium hydroxide.