Abstract: EMPLOYEE #1 WAS DISPOSING OF PACKING MATERIAL BEHIND A SHELF UPON WHICH HE HAD PLACED A 500 ML GLASS BOTTLE OF THIONYL CHLORIDE. THE BOTTLE WAS KNOCKED LOOSE, FELL TO THE FLOOR AND BROKE OPEN. EMPLOYEE #1 LEFT THE AREA, BUT ON HIS SUPERVISOR'S ADVICE RETURNED TO APPLY SODIUM BICARBONITE TO THE SPILL. NO SAFETY EQUIPMENT WAS WORN ON HIS RETURN TO THE AREA. EMPLOYEE #1 THEN EXPERIENCED SOME DIFFICULTY IN BREATHING. A CALL WAS THEN PLACED TO THE CAMPUS POLICE, WHICH RESULTED IN THE CITY FIRE DEPARTMENT RESPONDING. EMPLOYEES #2,3,4,5 ENTERED THE BUILDING TO EVACUATE ALL PERSONNEL. THEY WERE DRESSED IN FULL TURNOUT GEAR AS REQUIRED BY THE FISHER MSDS. AFTER COMPLETION OF THE SPILL CLEAN-UP AND SECURING THE AREA, EMPLOYEES #2,3,4,5 EXPERIENCED MINOR ITCHING AND REDNESS AT THE EXPOSED AREAS OF THEIR NECKS. THIS APPARENTLY WAS AS A RESULT OF HYDROCHLORIC ACID VAPORS COMBINING WITH THE WATER IN THEIR SWEAT TO FORM HYDROCHLORIC ACID. THEY WERE TAKEN, ALONG WITH EMPLOYEE #1, TO MEMORIAL HOSPITAL, TREATED FOR MINOR CHEMICAL BURNS (LONG SHOWER), AND RELEASED.