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qinhuangdao
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Commande minimale:
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Personne àcontacter Ms. vivian
jianshe 21-8-511, qinhuangdao, hebei
1.zinc oxide *9.0% *9.5% *9.7% ***** delivery 3.high quality with competitive price ***** ***1 approved Zinc Oxide Items *9% *9.5% *9.7% Content (ZnO) %â?¥ *9 *9.5 *9.7 MnO%â?¤ 0.***1 0.***5 0.***4 PbO%â?¤ 0.*5 0.*5 0.**7 CuO%â?¤ 0.**1 0.***5 0.***4 Heat Loss%â?¤ 0.3 0.3 0.3 HCl Insoluble Matter%â?¤ 0.*1 0.*1 0.*1 Water Soluble Matter%â?¤ 0.1 0.1 0.1 *5um Sieve Residue%â?¤ 0.*5 0.*5 0.*5 Appearamce: white powder, innocuous, odorless, stable under normal temperature.soluble in acid, alkali and ammonium chloride solution, insoluble in water and alcohol. Zinc oxide is an with the ZnO. It usually appears as a white powder, nearly insoluble in water. The powder is widely used as an additive into numerous materials and products including plastics, ceramics, glass, cement, rubber (***** car tyres), lubricants, paints, ointments, adhesives, sealants, pigments, foods (source of Zn ), batteries, ferrites, fire retardants, first aid tapes, etc. ZnO is present in the Earth crust as a mineral ; however, most ZnO used commercially is produced synthetically. ZnO is a relatively soft material with approximate hardness of 4.5 on the . Its elastic constants are smaller than those of relevant III-V semiconductors, such as . The high heat capacity and heat conductivity, low thermal expansion and high melting temperature of ZnO are beneficial for ceramics. Among the tetrahedrally bonded semiconductors, it has been stated that ZnO has the highest piezoelectric tensor or at least one comparable to that of and . This property makes it a technologically important material for many applications, which require a large electromechanical coupling.
