Specifications︰ Molecular formula: Na2Al4Si6S4O20
Items: Grade 462
Shade (compared with the standard sample):same as the standard sample
Tinting Strength % (compared with the standard Sample):same as the standard sample ¡À5%
Water Soluble Matter:1.0 % Max.
Free Sulphur:0.3 % Max.
Moisture (105¡À2¡æ): 1.0% Max.
Residue (325 holes Mesh):0.5% Max.