Chemical reagent volatilization:
1 oil seal: ammonia, concentrated hydrochloric acid, concentrated nitric acid and other volatile inorganic liquid, the liquid drops 10 to 20 drops of mineral oil, you can prevent volatile (not available vegetable oil).
2 seal: add 5mL of water in carbon disulfide, can be stored for a long time. Mercury on water, can prevent mercury vapor into the air. Mercury, put some sulfur powder, one but lost, scattered sulfur powder so that the elimination of mercury in the chemical reaction.
3: sealed with wax ether, ethanol, formic acid or water than light soluble volatile liquid, and naphthalene, iodine and other volatile solids, tight bottle cork, waxing. In addition to the original bottle sealing, the original bottle should be placed in a plastic tube with activated carbon.
Two, for chemical reagents - moisture:
1 bleaching powder, sodium peroxide should be sealed with wax, prevent water decomposition or water explosion. Sodium hydroxide absorbent deliquescence, should be sealed with wax; ammonium nitrate, sodium sulfate absorbent knot, it does not come out, so that the reagent bottle rupture, should also be tightly sealed with wax.
2 Chemical Reagent of calcium carbide, copper sulfate, phosphorus pentoxide, silica gel very absorbent modification, chemical reagent red phosphorus is easily oxidized, and then water generates metaphosphoric acid, the material should be stored in a desiccator.
Although the 3 concentrated sulfuric acid should be closed, to prevent water, but because of common, so it should put the grinding mouth bottle, grinding mouth bottle should be original, do not.
4 "special drugs" in the basement, the lower gray cloth, cloth cloth upper middle lime double kraft paper, can store drugs.