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Anonymous users2024-01-24Furniture generally does not contain nickel sulfate.
Nickel sulfate is mainly used in the electroplating industry, is the main nickel salt of electroplating nickel and electroless nickel, and is also the source of metal nickel ions, which can dissociate nickel ions and sulfate ions in the electroplating process. In the production of hardened oil, it is a catalyst for the hydrogenation of oils and fats. It is used in the pharmaceutical industry to produce catalysts for oxidation reactions in vitamin C.
The inorganic industry is used as the main raw material for the production of other nickel salts such as nickel ammonium sulfate, nickel oxide, nickel carbonate, etc. The printing and dyeing industry is used to find and produce phthalocyanine blue complexing agent, which is used as a coal dye for vat dyes. In addition, it can also be used to produce nickel-cadmium batteries.
There will be no formaldehyde, as a high-end furniture material, the red acid branch is not mixed with glue in the production process, and the paint will not use chemical paint, and the price of chemical paint is not as high as that of no paint.
Concentrated sulfuric acid will make it black and turn into charcoal when it comes into contact with wooden furniture, and it doesn't matter much if it is dilute sulfuric acid!
Formaldehyde is an indispensable main component of woodworking boards, paints and other materials, woodworking boards without formaldehyde will crack, paint will peel, so as long as your furniture uses these materials, formaldehyde must be exceeded.
The original solid wood does not contain formaldehyde. But the kind of artificially made solid wood board is glued together, so there will be formaldehyde released, of course, it is less than the formaldehyde of particleboard.
Yes, there is nothing that is completely excluded, otherwise the whole process will not be done, but it will be relatively small.