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This post was last edited by 955559 on 2018-1-27 20:43 Corrosion inhibitor NIC-V test 1. Test method Prepare solutions under different corrosion media, and add NIC-V at an amount of 2 g/L. Weigh the material to be tested and put it into the prepared solution. After 24 hours, take it out, rinse it with clean water, blow dry and weigh it. 2. Experimental phenomenon 2.1 Corrosion medium (conditions) and corrosion base material The corrosion medium is an acid-base medium, and the materials are 1145 aluminum and 26# steel. 2.2 Experimental phenomena and data 2.2.1 Experimental conditions and methods Corrosion temperature: room temperature, corrosion time: 24h。 Blow dry the test piece to be corroded and weigh it once, then soak it in the corrosive medium for 24 hours, remove the corrosion products from the surface and weigh it. 3. Experimental conclusion When the concentration of corrosion inhibitor NIC-V is 2 g/L, the following conclusions can be drawn based on the data in Table 1: (1) NIC-V has an obvious sustained release effect on iron substrates in all acidic media, which is mainly manifested in: The corrosion rate of iron substrates in acidic media is lower than that in tap water and close to that in pure water. Among them, the corrosion rate in phosphoric acid media is the highest among all acids. (2) NIC-V has an obvious sustained-release effect on aluminum substrates in all acid media except hydrofluoric acid, which is mainly manifested in: The corrosion rate of aluminum substrates is far lower than the corrosion rate in tap water, and slightly lower than the corrosion rate in pure water. In hydrofluoric acid medium, NIC-V has no obvious corrosion inhibition effect on aluminum substrates. (3) NIC-V also has a very obvious slow-release effect on iron substrates in alkaline media, and there is basically no corrosion on the iron substrate after immersion. (4) NIC-V has no obvious corrosion inhibition effect on aluminum substrates in strongly alkaline (such as sodium hydroxide) media, but it also has a good corrosion inhibition effect in weakly alkaline media. (5) Increasing the concentration of NIC-V should correspondingly enhance its corrosion inhibition effect. , (6) Welcome to contact us for sampling.