13.Ferro Frit 3227

M.P./°F 1300
Silica/Alumina ratio: 4.2:1
Equivalent Molecular Weight: 372.807

Molecular Formula of Ferro Frit 3227:

	K2O 	0.162 	Al2O3 	0.568 	SiO2 	2.360
	Na2O 	0.838 	B2O3 	1.526

Percentage Analysis

	38.02 % 	SiO2
	15.53 % 	Al2O3
	4.09 % 		K2O
	13.93 % 	Na2O
	28.42 % 	B2O3
	_____________________
	100 % 		TOTAL

Comments: 

	9.8 x 10-6 coefficient of expansion (50-450° C)