Spilled solids

Preparation of Boron Trifluoride Ammine. Assemble an apparatus as shown in Pig. 113. Place flask 1 into a bath with ice. To produce ammonia, spill solid granulated sodium or potassium hydroxide into bottle 2. Pour a concentrated ammonia solution into the dropping funnel. 

Spilled solids should simply be swept up and placed in the appropriate solid waste container. This should be done promptly because many solids are hygroscopic and become difficult if not impossible to sweep up in a short time. This is particularly true of sodium hydroxide and potassium hydroxide. 

Spills of larger quantities of solids are usually no different from smaller spills except in scale. The spilled solids simply remain as they fell. As long as the solids do not react with materials with which they may have come into contact (such as a reactive metal like sodium might do) or the dust is not a breathing hazard, the clean up is simply mechanically larger, with more containers being set aside for evaluation as to the mode of disposal, i.e., to determine if they are to be treated as hazardous waste or not. 

Spill (solid radioactive materials-toxic constituents) Various hazardous radioactive solids -Forklift puncture -Toppling of container (mishandliug, energetic external event) -Fatigue failure of container -Spill would be limited to area immediately surrounding container. -Procedures and training direct workers to leave area immediately. 

The leagent may also be prepared by dissolving 1 ml. of phenylhydrazine in a solution of 1 ml. of glacial acetic acid and 10 ml. of water. This procedure is not so convenient as that from the solid hydrochloride becaiise of the poisonous character of phenylhydrazine (both liquid and vapour). If the liquid is accidentally spilled on the skin, wash it at once with dilute acetic acid, followed by soap and water. 

Blockage of liquid Monitor pressure drop across vent system (e.g., effluent line due local indication, alarm or interlock) to closed valves,, Interlock valve in feed line to centrifuge results in flooding of basket and Equipment/line-up checks overflow from Remove unnecessary valves basket to solid col-. 5, lection system in base. Possibility of liquid spill. ... 

Solid Irritant Characteristics-. Represents a minimum hazard. If spilled on clothing and allowed to remain, may cause smarting and reddening of the skin Odor Threshold 40 ppm. 

Value)-. Not pertinent Short-Term Exposure Limits-. Not pertinent Toxicity by Ingestion Grade3 LDjo 50 to 500 mg/kg Late Toxicity Data not available Vapor (Gas) Irritant Characteristics Not pertinent Liquid or Solid Irritant Characteristics Minimum hazard. If spilled on clothing and allowed to remain, may cause smarting and reddening of the skin Odor Threshold Not pertinent. 

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