Congenital iodine deficiency syndrome those areas without outside food sources are most at risk of iodine deficiency diseases. Iodine deficiency results in the impairments in varying degrees of physical and mental development. It also causes gradual enlargement of the thyroid gland, referred to as a goiter. It is being combated in many countries by public health campaigns of iodine administration. Congenital hypothyroidism can be endemic, genetic, or sporadic. If untreated, it results in mild to severe impairment of both physical and mental growth and development. Poor length growth is apparent as early as the first year of life. Adult stature without treatment ranges from
Iodine monofluoride −45 °C in CClF: It can also be generated by the reaction of iodine with iodine trifluoride at −78 °C in CClF: The reaction of iodine with silver(I) fluoride at 0 °C also yields iodine monofluoride: Iodine monofluoride is used to produce pure nitrogen triiodide: Iodine monofluoride Iodine monofluoride is an interhalogen compound of iodine and fluorine with formula IF. It is a chocolate-brown solid that decomposes at 0 C, disproportionating to elemental iodine and iodine pentafluoride: However, its molecular properties can still be precisely determined by spectroscopy: the iodine-fluorine distance is 190.9 pm and the I−F bond dissociation energy