TSCA Definition 2019: An inorganic pigment that is the reaction product of high temperature calcination in which lanthanum (III) oxide, neodymium (III) oxide, and titanium (IV) oxide in varying amounts are homogeneously and ionically interdiffused to form a crystalline matrix of rutile. Its composition may include praseodymium as a modifier.

TSCA Definition 2019: An inorganic pigment that is the reaction product of high temperature calcination in which neodymium (III) oxide and titanium (IV) oxide in varying amounts are homogeneously and ionically interdiffused to form a crystalline matrix of rutile.

TSCA Definition 2019: An inorganic pigment that is the reaction product of high temperature calcination in which titanium (IV) oxide and zinc oxide in varying amounts are homogeneously and ionically interdiffused to form a crystalline matrix of rutile.