21.Ferro Frit 3271

M.P./°F 1500
Equivalent Molecular Weight: 247.577

Molecular Formula of Ferro Frit 3271:

	Na2O 	0.514	 B2O3 	0.768 	SiO2 	2.250
	CaO 	0.486

Percentage Analysis

	54.58 % 	SiO2
	12.87 % 	Na2O
	11.01 % 	CaO
	21.54 % 	B2O3
	_____________________
	100 % 		TOTAL

Comments: 

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