READILY SOL IN DILUTE ACIDS; SOL IN WATER READILY SOL IN ALKALIES; PRACTICALLY INSOL FROM PH 4.5-7.0; CRYSTALS CONTAINING 2% ZN @ PH 7 ARE MUCH LESS SOL
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COLORLESS OR ALMOST COLORLESS IF CONTAINING NOT MORE THAN 100 USP UNITS/ML; STRAW-COLORED IF CONTAINING 500 UNITS CRYSTALS HEXAGONAL SYSTEM, USUALLY OBTAINED AS FLAT RHOMBOHEDRA & CONTAINING 0.4% ZINC