... small amount for making barometer, transference, etc. Cobalt chloride paper in dry is blue, damp into pink. Add ... a certain amount of cobalt chloride silica gel, to instruct the silica gel moisture ... mg, three times a day after meals, can repeat 3, 4 months; Pediatric daily 2, 4 mg/kg, ... piece of 20 mg, 40 mg; Agent: 0.3% solution.PROPERTY:red odd inclined crystal,becomes blue when ...