TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - The heat-medium composition comprises (in g) sodium chloride (27.5-29.55), distilled water (850-830), sulfuric acid (0.25-2.64), magnesium (1.26-1.27), calcium (0.37-0.4), activated carbon (0.12-0.139), boron oxide (0.043-0.046), strontium powder (0.0074-0.008), fluoride standard solution (0.0012-0.0013), phosphorus plasma standard (0.065-0.07), zinc standard solution (0.0093-0.01), lithium standard solution (0.15-0.17), nitrogen nitrate standard solution (0.00047-0.0005), bromine water (0.06-0.065), iron standard solution (0.0093-0.01), molybdenum standard solution (0.0093-0.01), aluminum standard solution (0.0093-0.01), cesium chloride (0.0328-0.036), potassium (0.3554-0.386), tetraethylene glycol diethyl ether (9.0-9.9), ethylene glycol (6.0-6.6), dipropylene glycol methyl ether (6.0-6.6), dipropylene glycol (6.0-6.6), tripropylene glycol monomethyl ether (6.0-6.6), methoxytriglycol acetate (6.0-6.6), diethylene glycol (6.0-6.6), methoxytriglycol (6.0-6.6), diethylene glycol diacetate (6.0-6.6), ethoxytriglycol (6.0-6.6), triethylenetetramine (6.0-6.6), tripropylene glycol (6.0-6.6), diethanolamine (6.0-6.6), tetraethylene glycol dimethylether (9.0-9.9), triethyleneglycol (9.0-9.9g), 85% triethanolammine (9.0-9.9), tetraethylene glycol (9.0-9.9) and glycol activator solution (2.74753-6.4782). The fluorine standard solution comprises sodium fluoride (0.42%) and water (99.58%). The phosphorus plasma standard comprises ammonium phosphate (1.0%) and water (99%). The zinc standard solution comprises nitric acid (5%), zinc oxide (0.1%) and water (94.9%). The lithium standard solution comprises lithium chloride (0.1%) and water (99.9%). The nitrogen nitrate standard solution comprises potassium nitrate (2%) and water (98%). The bromine water comprises bromine (5%) and water (95%). The iron standard solution comprises nitric acid (2.0%), ferric nitrate (0.7%) and water (97.3%). The molybdenum standard solution comprises molybdenum anhydride (0.15%), hydrochloric acid (0.06%), nitric acid (0.04%) and water (99.7%). The aluminum standard solution comprises aluminum chloride hexahydrate (0.85%), hydrochloric acid (10.13%) and water (89.02%). The ethoxytriglycol comprises 2-(2-(2-ethoxyethoxy)ethoxy)ethanol (85-99%), 3,6,9,12-tetraoxytetradecane-1-ol (0.1-15%), diethylene glycol monoethyl ether (0.1-4%), diethylene glycol (0.1-3%), triethyleneglycol (0.1-2%). The tripropylene glycol comprises tripropylene glycol (95-99) and oxybis propanol (1.0-5.0%). The tetraethylene glycol dimethylether comprises tetraethylene glycol dimethylether (99.9%) and other components. The triethanolammine comprises triethanolammine (85%) and diethanolamine (15%). The tetraethylene glycol comprises tetraethylene glycol (99.9%), ethylene glycol (0.05%) and ethylene oxide (0.05%). The glycol activator solution comprises potassium hydroxide (80%) and water (20%).