Lead Tin I

There are two main lead-tin yellows, and among them there are differences in the shade of yellow. Type I is usually a lemon yellow which tends to be brighter than Type II. This color does not have a pigment code. Also bear in mind that Lead Tin Yellow Type 1 is different from the other lead yellows (specifically it is distinct from Naples Yellow Genuine, PY41). The two pigments are distinct (more on this below).

According to CAMEO Type 1 has a tendency to interact to form lead soaps in paint films.

Like all lead paints, Lead Tin Yellow is extremely toxic.

Lead Tin Yellow I is sometimes known sometimes as Giallorino, the terms Lead Tin Yellow, Naples Yellow genuine, giallolino, giallorino, massicot, and litharge, but unfortunately some of these terms have been used to describe other pigments as well. Unfortunately all these terms need a little bit of clarity by adding the chemical name, as they may or may not refer to similar things when people use them.

Part of the reason for the confusion in names may lie in historical reasons that go beyond this brief overview, but in short there was a kind of rediscovery of Lead Tin Yellows in modern times. In terms of Type I and Type II, Artiscreation notes that Type II is "redder and deeper...and more transparent" than Type I.

Lead Tin Yellow Type I has a somewhat heavy physical weight, and it’s mellow in the way that it mixes. In terms of color behavior, the lead yellows are more mild than most synthetics, most cadmiums, and have a semi-transparency to them. However they are poisonous and expensive.