Pemco Frit P-609

M.P./°C 625.0

Silica/Alumina ratio: 12.5:1

Equivalent Molecular Weight:  255.679



Molecular Formula of Pemco Frit P-609:

	K2O   0.030	Al2O3  0.200	SiO2  2.500
	Na2O  0.090	B2O3   0.330	
	CaO   0.320		
	MgO   0.210		
	Li2O  0.140		
	SrO   0.210

		

Percentage Analysis

	 59.06 % 	SiO2 
	  8.02 % 	Al2O3
	  1.11 % 	K2O  
	  2.19 % 	Na2O 
	  3.33 % 	MgO  
	  7.06 % 	CaO  
	  8.56 % 	SrO  
	  1.65 % 	Li2O 
	  9.01 % 	B2O3 
	_____________________
	100 % 		TOTAL

 Comments: 6.9 x 10-6 coefficient of thermal expansion (50-450° C) 
 Melting point 1430-1530°F