The fulminate ion, CNO −, is a pseudohalic ion because its charge and reactivity are similar to those of the halogens. Due to the instability of the ion, fulminate salts are friction-sensitive explosives. The best known is mercury(II) fulminate, which has been used as a primary explosive in detonators.
History. Charles Grant, Chairman of the British East India Company and a Member of Parliament (MP), was closely involved in the foundation of the college. It was first located in Hertford Castle but it was evident that a purpose-built seat of learning would be more suitable and in October 1805 the company purchased an estate just outside Hertford Heath for the sum of £5,930 for this objective.