Lanthanum nitrate, La(NO₃)₃

Lanthanum nitrate, La(NO₃)₃.6H₂O, forms deliquescent, triclinic crystals which lose 5H₂O over sulphuric acid. At 25° a saturated aqueous solution of the hexahydrate contains 151.1 parts of anhydrous salt per 100 of water. Lanthanum nitrate is isodimorphous with bismuth nitrate.

Lanthanum caesium nitrate, La(NO₃)₃.2CsNO₃.2H₂O, forms monoclinic crystals (a:b:c = 1.3052:1:0.9663; β = 103°26').

Lanthanum rubidium nitrate, La(NO₃)₃.2RbNO₃.4H₂O, has been described.

Lanthanum potassium nitrate, La(NO₃)₃.2KNO₃.2H₂O, forms orthorhombic crystals (hemimorphic; a:b:c = 0.5306:1:0.5696) of density 2 54 at 0° C.

Lanthanum sodium nitrate, La(NO₃)₃.2NaNO₃.H₂O, forms monoclinic crystals (a:b:c = 1.9970:1:0.7678; β = 90°32') of density 2.63 at 0° C.

Lanthanum thallium nitrate, La(NO₃)₃.2TlNO₃.4H₂O, has been prepared.

Acid lanthanum rubidium nitrate, La(NO₃)₃.RbNO₃.HNO₃.6H₂O, has been prepared by Jantsch and Wigdorow. When heated to 120° it loses nitric acid and water, leaving the salt La(NO₃)₃.RbNO₃.H₂O.