â¢ Graduate Medical Education (GME) for physicians. Inpatient care units at a VAMC can be categorized into two general types; from lowest to highest patient acuity: Medical / Surgical (M/S) and Intensive Care Unit (ICU).
That means that the different types of metals used in the stars each have a characteristic color. Here are some of the metals and specific compounds that are typically used in fireworks to produce different colors: Red: strontium (strontium carbonate, SrCO3), for intense reds and lithium (lithium carbonate, Li2CO3, or lithium chloride, LiCl) for medium reds. Orange: calcium (calcium chloride, CaCl2)
Several of the metal salts that produce colors contain chlorine. Copper - Copper compounds produce blue colors in fireworks. Iron - Iron is used to produce sparks. The heat of the metal determines the color of the sparks. Lithium - Lithium is a metal that is used to impart a red color to fireworks. Lithium carbonate, in particular, is a common colorant.