Why can nickel oxide powder be used in metallurgy and picture tube?
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Author : Lzh
Update time : 2023-02-05 14:26:41
What is nickel oxide powder? Nickel oxide powderis green to dark green cubic crystalline powder, which turns yellow after overheating. Relative density is 6 67. The melting point is 1984 ℃. It is soluble in acid and ammonia water but not in water and liquid ammonia. When heated to 400 ℃, it becomes nickel trioxide due to oxygen absorption in the air. At 600 ℃, it is reduced to nickel monoxide. The nickel oxide prepared at low temperature has chemical activity. The nickel oxide calcined at a high temperature of 1000 ℃ is green-yellow and has low activity. Moreover, with the increase in temperature, its density and resistance increase, and its solubility and catalytic activity decrease.
Safety of nickel oxide powder Packed in iron buckets lined with polyethylene plastic bags, each bucket has a net weight of 30kg, 40kg, and 50kg. Stored in a ventilated and dry warehouse, the container must be sealed to prevent moisture and caking. It cannot be stored and transported together with strong acids and alkalis. In case of fire, it can be put out with water. Toxicity and protection: it can enter cells, cause damage to enzymes and metabolic processes in cells, and may cause carcinogenesis due to the formation of certain carcinogens. Contact with nickel salt can cause nickel eczema, Nickel scabies. Maximum allowable concentration in the air: divalent nickel oxide is 0 5mg/m3 (calculated by nickel). During production, operators should wear gas masks and gas masks to prevent direct skin contact to the greatest extent. The mechanized operation should be carried out as far as possible to avoid dust. Personnel exposed to nickel compounds at work should have a regular physical examination.
Preparation of nickel oxide powder Low-heat solid phase method: grinding time, calcination temperature, and the selection of raw materials greatly impact the product's particle size and dispersion performance. The grinding time is too short, and the reactant contact is not sufficient and uneven, which easily leads to a different product particle size. In the decomposition process, the calcination temperature is too low, and the precursor decomposition is incomplete; High calcination temperature leads to the increase of particle size of the product, and the product performance obtained by calcining the precursor at the decomposition temperature of the precursor is good.
Price of nickel oxide powder Nickel oxide powder particle size and purity will affect the product's price, and the purchase volume can also affect the cost of nickel oxide powder. A large amount of large amount will be lower. The price of nickel oxide powder can be found on our company's official website.
Nickel oxide powder supplier Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including nickel oxide powder, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective nickel oxide powder, you are welcome tocontact us or inquire at any time.
