Flammable solvents safe handling

For a catalyst-ignited fire to occur, oxygen must be present exclusion of oxygen permits completely safe handling. Some workers put the catalyst in the reaction vessel and sweep air from the vessel with a gentle flow of nitrogen or carbon dioxide argon is ideal if available, The solvent, which may be cooled to diminish its flammability, is then added. Once all of the catalyst has been wet with solvent, fire will not occur. Air can also be removed from the flask by... 

The example shown in Fig. 3 is a system used for the drying and handling of bulk powder. It provides a clean classified environment for handling bulk powder, a containment of the potent compound, and a nitrogen environment to allow the safe use of flammable solvents. It is a rigid positive-pressure device located in a EU... 

Safety. Distillation of solvents involves the safe handling of large amounts of vapour that may be toxic, explosive, flammable or strong-smeUing. Some plants may not be able to cope with such material satisfactorily and may have difficulty in getting a site licence. 

Solvent action and measurement 4.4 Safe handling of flammable solvents 77... 

Uses The major use of PER is as a solvent for dry cleaning. It has replaced almost all other solvents because it is non-flammable and its handling is safe [3661. The concentrations of stabilizers can be kept low. Other uses are metal degreasing (especially aluminum parts), textile finishing, dying and extracting processes. Trichloroacetic acid and some fluorocarbons are made from PER. 

Caution Potassium is highly reactive. Although it may be handled safely in air if it is covered with a hydrocarbon solvent such as heptane or mineral oil, it will spark and ignite flammable organic vapors on contact with water. The magnesium formed in this reaction is highly reactive and pyrophoric (Note 1). Accordingly, Parts C and D of this procedure should be carried out behind a safety shield. 

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