I have found several yellow 6 glazes you might be interested in.
Strontium in ceramic glazes.
Strontium carbonate is a very slightly soluble source of sro used in glazes.
It breaks to darker gold and white with 6 mason stain 6485 titanium yellow.
Fire and see if results the same.
Both chemically and in their effects on glazes strontium and barium are closely related to calcium and magnesium the most common alkaline earth elements in glazes.
Srco 3 sro co 2.
Well mix a small amoubt of glaze using the strontium carb above mentioned.
Fluxes lower the melting point of the glass formers in glazes clay bodies and other ceramic materials.
Quantity discounts are available.
Strontium carbonate can be used very much like calcium carbonate whiting but also increases a glaze s resistance to crazing and.
There is disagreement about when it decomposes data sheets vary from 1075 1100c one even indicates 1340c as follows.
Strontium carbonate is a source of strontium oxide in glazes which is use.
Place both on pieces of biscuit xlay.
The pinnell strontium matt was still very matt with 5 added g.
Borate maybe needs even more the glaze must be thickly applied.
Fluxes lower the melting point of the glass formers in glazes clay bodies and other ceramic materials.