Medical grade zinc powder manufacturer

2020-03-16

Medical grade zinc powder

      Medical grade zinc powder Content: 99.7%
English Name Zinc oxide
CAS No. 1314-13-2
EINECS No. 215-222-5
Molecular Formula ZnO
Molecular Weight 81.4084
Melting Point 1975℃
Water Solubility 1.6 mg/L (29℃)
Melting Point 1975℃

      Medical grade zinc powder Solubility Soluble in acid, sodium hydroxide, ammonium chloride, insoluble in water, ethanol and ammonia.

Production Process 1. Obtained by calcining zinc carbonate. 2. Obtained by calcining and decomposing zinc hydroxide. 3. Zinc is smelted from crude zinc oxide, and then oxidized by high-temperature air. 4. Obtained by oxidizing molten zinc.

Production Methods Currently used methods include indirect methods using zinc ingots as raw materials, direct methods using zinc ore as raw materials, and three wet methods.

      Medical grade zinc powder Properties: White crystals or powder, belonging to the hexagonal system. Odorless, non-toxic, sand-free, fine. Its coloring power is twice that of basic lead carbonate, and its covering power is half that of excessive zinc oxide and zinc sulfide. Insoluble in water and ethanol, soluble in acid, sodium hydroxide, ammonium chloride, is an amphoteric oxide. When heated at high temperature, it appears yellow and white after cooling. Carbon dioxide and water can be absorbed in moist air, and gradually become basic zinc carbonate. It can also be reduced to zinc by carbon or carbon monoxide. There is an excess of zinc in the zinc oxide lattice. The first ionization energy of zinc is low, and it is easy to lose electrons. The electron mobility of zinc oxide is much higher than the hole mobility, and it can be regarded as an n-type semiconductor.

      Medical grade zinc powder Uses: Used to make ointments, zinc paste, rubber paste, etc. Suitable for zinc supplementation in feed processing. Used as a reinforcing agent and activator in the rubber or cable industry, a colorant and filler for white adhesives, a curing agent for chloroprene rubber, etc. In the fertilizer industry, the original gas is mainly used for fine desulfurization, mainly used as white pigment, rubber vulcanizing agent, enhancer, organic synthesis catalyst, desulfurizer, electrostatic printing, medicine, etc. Used for desulfurization of raw gas for ammonia synthesis, petroleum, and natural gas chemical raw materials. Used as an analytical reagent, reference reagent, fluorescent agent, and matrix of photosensitive materials, used in electrostatic wet copying, dry transfer, laser facsimile communication, and electronic products.
 

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