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...a 1 gram sample? An inclusive list of potential substances includes:
Sodium Chloride
Ammonium Chloride
Calcium Chloride
Aluminum Chloride
Magnesium Carbonate
Sodium Bicarbonate
Calcium Carbonate
Magnesium Sulfate
Potassium Sulfate
Aluminum Sulfate
Lauric Acid
Salicylic Acid
Sodium Iodide...