Method for oxidizing cultural relics in ironware
A technology for dechlorination and cultural relics, applied in the field of dechlorination treatment of iron cultural relics, can solve the problems of destroying the original appearance of cultural relics, and achieve the effect of prolonging life and reducing charge density
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preparation example Construction
[0014] Preparation of alkaline compound dechlorination cleaning solution: add anionic surfactant with a mass percentage concentration of 0.1 to 0.5% in a NaOH alkaline solution with a mass percentage concentration of 2%, and an anionic surfactant with a mass percentage concentration of 0.1 to 0.5%. Ionic surfactants, builders with a concentration of 0.01-0.1% by mass, and amine corrosion inhibitors with a concentration of 2-5% by volume, accurately weighed various cleaning agents and corrosion inhibitors and added to 2 % NaOH alkaline solution, stir and mix evenly to make alkaline compound dechlorination cleaning solution.
[0015] Wherein the preferred anionic surfactant is: sodium dodecylbenzenesulfonate or sodium lauryl sulfate or sodium lauricate or triethanolamine; nonionic surfactant is: nonylphenol polyoxyethylene ether; Lotion: sodium tripolyphosphate or sodium carbonate or trisodium phosphate; corrosion inhibitor: ethylenediamine.
[0016] Constant potential cathodic...
Embodiment 1
[0019] Weigh 1g each of the anionic surfactant sodium dodecylbenzenesulfonate and the nonionic surfactant OP-10 and 0.1g of the builder sodium tripolyphosphate, put them into a beaker with a capacity of 1L, and then add 980ml of NaOH solution with a concentration of 2% by mass and 20ml of ethylenediamine were stirred to make the solutions evenly mixed. Put the simulated cast iron cultural relics to be treated into a beaker filled with alkaline compound dechlorination cleaning solution. The test piece to be treated is connected to the negative pole of the potentiostat, the stainless steel anode is connected to the positive pole of the potentiostat, and the anode and cathode are connected to each other. Keep a certain distance between them. After connecting the circuit, turn on the potentiostat and adjust the potential to be constant at -1.15V. Measure the chloride ion concentration in the solution every 24h within a week after starting the treatment, and then every two days, thr...
Embodiment 2
[0021] Weigh 2g of anionic surfactant sodium lauryl sulfate and nonionic surfactant OP-10 and 0.05g of builder sodium carbonate, put them into a beaker with a capacity of 1L, and then add 960ml of mass percentage to the beaker Concentration of 2% NaOH solution and 40ml of ethylenediamine, stirring to mix the solution evenly. Put the simulated cast iron cultural relics to be treated into a beaker filled with alkaline compound dechlorination cleaning solution. The test piece to be treated is connected to the negative pole of the potentiostat, the stainless steel anode is connected to the positive pole of the potentiostat, and the anode and cathode are connected to each other. Keep a certain distance between them. After connecting the circuit, turn on the potentiostat and adjust the potential to be constant at -1.10V. Measure the chloride ion concentration in the solution every 24h within a week after starting the treatment, and then every two days, three days or Measure the conc...
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