General Introduction:
It is a compound smetling flux for magnesium and its alloy, to protect magnesium melt and accelerate the melting rate.

Function:

The combination of magnesium and potassium chlorides provides the low melting eutectic，while the fluoride provides the surface wettability and chemical reactivity with magnesium oxide to cause sufficient removal. MgO increases the viscosity of flux. The barium compound provides the density requirement for the salt to effectively mix with the magnesium and then settle out at the bottom of the crucible.