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zinc phosphate

   Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson 0.02 sec.
zinc phosphate [′ziŋk ′fä‚sfāt]
(inorganic chemistry)
Zn3(PO4)2A white powder that is insoluble in water, soluble in acids and ammonium hydroxide; melts at 900°C; used in coatings for steel, aluminum, and other metals, and in dental cements and phosphors. Also known as tribasic zinc phosphate; zinc orthophosphate.


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Zinc phosphate has its problems, among them a tendency to break down and clog an engine's catalytic converter.
For many types of steel parts, typical alkaline cleaning, acid pickling and zinc phosphate processes are completely eliminated, along with the costs, processes and monitoring requirements.
Nate Goodnow, managing director of PPG Coating Services, said, "The industry has been excited about the introduction of Alltech's level of coatings competence in Taiwan, with state-of-the-art equipment and technology for processing zinc phosphate conversion coatings and multiple colors of electrocoat.
 
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