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         Potassium hydroxide
         Sodium sulfite anhydrous
        		 
         
         Polyaluminium Chloride
         Polymeric ferric sulfate
        		 
         
         Sodium cyanide
         Copper Pyrophosphate
        		 
         
         Methylbenzene
         Isopropyl alcohol
        		 
         
         Electrolytic copper
         Nickel ball (nickel discus)
        		 
         
         Optical spectrum analyzers
         Physical property analyser
        		 
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