hey wait, I google this for you ;-)

https://en.wikipedia.org/wiki/Artificial_seawater

(pH8.2 according to ASTM D1141-98)

Thank You, Andreas Heyn

There are certain chemicals/parameters present in the ocean during the real-time environment, so can you suggest the accurate concentration for Alkaline/acidic/neutral, so that better chemical stability and corrosion resistance can be provided?

Dear Dr. Shashi Kant ,

the accuracy of the chemical-physical parameters depends a lot on what your main purpose is.

I suggest you to have a look at the following, interesting documents:

-EVOLUTION OF AN ARTIFICIAL SEAWATER MEDIUM: IMPROVEMENTS IN ENRICHED SEAWATER, ARTIFICIAL WATER OVER THE LAST TWO DECADES

John A. Berges, Daniel J. Franklin and Paul J. Harrison

J. Phycol.37, 1138–1145 (2001)

Availabe at: https://cpb-us-w2.wpmucdn.com/sites.uwm.edu/dist/6/103/files/2016/07/Berges_etal_2001a-2a5wooe.pdf

-The Oceans Their Physics, Chemistry, and General Biology

H. U. Sverdrup, Martin W. Johnson, Richard H. Fleming (1942 !!!)

Available at: https://publishing.cdlib.org/ucpressebooks/view?docId=kt167nb66r;brand=eschol

-Typical chemical characteristics of full-strength seawater

By Claude E. Boyd, Ph.D. (2020)

Available at: https://www.aquaculturealliance.org/advocate/typical-chemical-characteristics-of-full-strength-seawater/

My best regards, Pierluigi Traverso.

Thanks, Dr. Pierluigi Traverso

Dear Shashi Kant,

I will suggest coral reef salts that is the best simulated marine environment. Usually we use 50 to 54 g of coral reef salts per liter of distilled water.

Good luck

Thanks Dr. Muhammad Saleem Khan