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Question: What other substances need to be added to -35°C frozen saline besides salt?

2010-11-12View Original

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Question: Besides salt, what else needs to be added to -35°C frozen saline to protect the pipes? All pipes are carbon steel pipes made of 16 manganese. I would appreciate it if you all could give me some advice. Thank you! ~:victory:
Reply #22010-11-13
I would like to know that too; I hope the expert can share it.
Reply #32010-11-20
You must add a grade etchant for this; otherwise, your pipelines will be corroded. Mainly chlorine corrosion, discussion. 15094401317 Mr. Zhang.
Reply #42010-11-24
Which brand do you use for your -35 degree freezing systems? We also want to use such a device
Reply #52010-11-25
Saltwater solutions are corrosive, especially dilute solutions that are slightly acidic; under operating conditions, exposure to air exacerbates metal corrosion, so corrosion inhibitors must be added to the saltwater solution. Generally, sodium chromate dihydrate is used at a concentration of 1.5–2.0 g/L
Reply #62010-11-25
Otherwise, chloride corrosion is quite severe**

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