52 CHEMICAL COMPOSITIONS FOR CLEANSING AND CONDITIONING FLUID HANDLING AND HEAT TRANSFER SYSTEMS AND OTHER SURFACES BY REMOVING ONE OR MORE OF THE CONTAMINATES: SOOT, SCALE, CORROSION, DIRT, OIL, AND GREASE, INCLUDING IN PARTICULAR: COMPOSTIONS FOR REMOVING SOOT AND SCALE FROM THE FIRE SIDE OF FUEL BURNING SYSTEMS (BY DIRECT ADDITION TO THE FIRE OR FLAME); LIQUID, GELATINOUS AND SOLID BOILER TREATMENT COMPOSITIONS POSSESSING CLEANSING PROPERTIES; DRAIN-PIPE CLEANER COMPOSITIONS; COMPOSITIONS FOR REMOVAL OF SCALE AND CORROSION FROM WATER SYSTEMS; AND COMPOSITIONS FOR USE WITH FRESH OR SALT (SEA) WATER TO CLEANSE SURFACES OF OIL AND GREASE