Written question asked by Andrew Hunter (Conservative), in the House of Commons. It was due for an answer on Wednesday, 19 March 1997. It was answered by Malcolm Moss (Conservative) on Wednesday, 19 March 1997 on behalf of the Northern Ireland Office.

Northern Ireland Office

Question: Pursuant to his letter to the honourable Member for Basingstoke, what is his scientific evidence for his statement that there is no difference between naturally found calcium fluoride and adding hexafluorosilicic acid or disodium hexafluorosilicate.

Answer: Mr. Hunter: To ask the Secretary of State for Northern Ireland, pursuant to his letter to the hon. Member for Basingstoke, what is his scientific evidence for his statement that there is no difference between naturally found calcium fluoride and adding hexafluorosilicic acid or disodium hexafluorosilicate. [21136] Mr. Moss: There is no evidence to suggest that there is any difference in effect between flouride which occurs naturally in water and that produced by adding either hexaflourosilicic acid or disodium hexaflourosilicate to water.

Secondary information