7 сентября, 2015 
Pokraskin The BaNiTi yellow priderite pigments are weaker and greener than the NiSbTi DR pigments. Their commercial formulas were developed mostly by empirical testing. The DCMA handbook has their chemistry incorrectly listed as 2NiO x 3BaO x 17TiO2, which would result in the presence of secondary phases. Some of the stoichiometry confusion is due to complex composition of the naturally occurring mineral [30] that contains a large number of elements.
The priderite structure is related to the hollandite structure and can give a single-phase product over a considerable range of stoichiometries near BaNiTi7O16. These Sb-free pigments were initially sold as heavy metal free pigments.
6.2.3
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