Hydrochloric acid is one of the most aggressive acids in relation to steels, which causes intense corrosion even at normal temperatures. Hydrochloric acid destroys almost all existing steels and most other alloys. In addition, this acid is readily available, cheap, and relatively harmless to health. Another important factor: hydrochloric acid is not an oxidizing agent, therefore, unlike, for example, nitric acid, it does not cause passivation of the surface of alloy steels.

For corrosion testing of steels, dilute sulfuric acid can also be used, but then constant heating (50-80°C) is required, which is less convenient.

Thank you for your answer sir

Dear Dr. Mahadeva swamy Mallanna ,

hydrochloric acid solutions are commonly used for pickling, industrial acid cleaning, acid de-scaling, and oil well-acidifying processes. Because of the aggressiveness of acid solution, mild steel corrodes severely during these processes, particularly with the use of hydrochloric acid, which results in a terrible waste of both resources and money. Therefore, the use of inhibitors is one of the usual methods of protecting metallic materials against corrosion in acidic environments, i.e., inhibitors compound is often added in the acid solutions to minimize the corrosion of mild steel in these processes.

For more details, please see the source:

-Inhibition of Mild Steel Corrosion in 1M Hydrochloric Medium by the Methanolic Extract of Ammi visnaga L. Lam Seeds

Aouatife Zaher , Abdelkarim Chaouiki, Rachid Salghi, Asmaa Boukhraz, Brahim Bourkhiss, and Mohammed Ouhssine

International Journal of Corrosion, Article ID 9764206 (2020).

Available at: https://www.hindawi.com/journals/ijc/2020/9764206/

My best regards, Pierluigi Traverso.

Thank you for your answer sir

I really confused from these two words, please give clarity.

In many journals mentioned double blind review and camera ready paper, give me clarification plz?

Dear Dr. Mahadeva swamy Mallanna ,

below you should have the parameters related to your question.

The reviewing is double blind, in that authors do not know the names of the area chair/reviewers of their papers, and the area chairs/reviewers cannot, beyond reasonable doubt, infer the names of the authors from the submission and the additional material. Avoid providing information that may identify the authors in the acknowledgments (e.g. in co-workers ) and in the supplemental material (e.g. in attached papers). Avoid providing links to websites that identify the authors. Violation of any of these guidelines may lead to rejection without review.

Camera-ready is a common term used in the commercial printing industry meaning that a document is, from a technical standpoint, ready to "go to press", or be printed.It refers to the final stage of text, tables, and illustrations of a manuscript and includes proper formatting. What is submitted as camera ready is printed as it is with no revisions. The term was originally coined because the manuscript was sent to a printer to be photographed for offset printing.

My best regards, Pierluigi Traverso.

Dear Mahadeva, thank you for your interesting technical question. As already mentioned by Vadim Verlotski and Pierluigi Traverso HCl is particularly aggressive with respect to steel corrosion. This is not only true for aqueous hydrochloric acid but also for HCl gas. I still remember when we carried out a reaction with thionyl chloride (SOCl2) in which HCl gas was evolved. This caused severe corrosion of all steel parts in the fume hood. For more potentially useful answers to your question please have a look at the answers given to the following closely related RG question:

I want to know why corrosion inhibition studies are carried out in HCl medium especially at 1 M concentration ?

https://www.researchgate.net/post/I_want_to_know_why_corrosion_inhibition_studies_are_carried_out_in_HCl_medium_especially_at_1_M_concentration

(7 answers)

Good luck with your work!

thank you for your recommendation