1.  Toluene
         Sodium carbonate
         Nickelous sulfate
         Sodium stannate
         calcium chloride
         Poly(vinyl alcohol)
         Glycerin
         Isopropanol
         1-Butanol
         Ethylene glycol
         Ethyl Alcohol
         Methyl alcohol

        calcium chloride
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        CAS NO: 7664-39-3
        Molecular weight: 20.01 
        EC NO: 231-634-8
        Molecular formula: HF
        InChI: InChI=1/FH/h1H/i/hD
        Alias: Hydrogen fluoride,anhydrous; hydrogen fluoride; fluoride; (~2~H)hydrogen fluoride; Hydrogen Fluotride; Anhydrous Hydrogen Fluoride
        Structural formula:
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