Sulfide - Nomenclature. 1  The systematic names sulfanediide and sulfide (2â), valid IUPAC names, are determined according to the substitutive and additive nomenclatures, respectively.
Nuclear proliferation is the spread of nuclear weapons, fissionable material, and weapons-applicable nuclear technology and information to nations not recognized as Nuclear Weapon States by the Treaty on the Non-Proliferation of Nuclear Weapons, also known as the Nuclear Non-Proliferation Treaty or NPT.
1 July 1968: The Treaty on the Non-Proliferation of Nuclear Weapons (also known as the Non-Proliferation Treaty, or the NPT) is opened for signature in London, Moscow and Washington, D.C. â as the United Kingdom, the USSR and the United States are designated the depositary Governments.