L 1379 (OTTO) Lead fluoride, 98% Cas 7783-46-2 - used in phosphors for television-tube screens. L 1379 (OTTO) Lead fluoride, 98% Cas 7783-46-2 - used in low melting glasses; in glass coatings to reflect infrared rays; in phosphors for television-tube screens; for nickel plating on glass; and as a catalyst for the manufacture of picoline.