prov:value
| - Appropriate cross-linking cations include, but are not limited to, alkaline earth metals, such as calcium, magnesium, barium, strontium, and beryllium ions; transition metals, such as iron, manganese, copper, cobalt, zinc, and silver ions; other metallic elements, such as boron, aluminum, lead, and bismuth ions; and polyamonium ions, such as +H3N(???CH2)n???NH3 + or +H3N???(CH2)n???CH((CH2)m???NH3
|