41.Ferro Frit 3820

M.P./°F 1650
Silica/Alumina ratio: 6.6:1
Equivalent Molecular Weight: 254.981

Molecular Formula of Ferro Frit 3820:

	K2O 	0.220 	Al2O3 	0.326 	SiO2 	2.160
	Na2O 	0.210 	B2O3 	0.170 	ZrO2 	0.060
	CaO 	0.240
	MgO 	0.030
	ZnO 	0.300

Percentage Analysis

	50.88 % 	SiO2
	13.03 % 	Al2O3
	8.13 % 		K2O
	5.10 % 		Na2O
	0.47 % 		MgO
	5.28 % 		CaO
	9.57 % 		ZnO
	4.63 % 		B2O3
	2.90 % 		ZrO2
	_____________________
	100 % 		TOTAL

Comments: 

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