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gcros
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Join Date: Jun 2008
Posts: 10

Nitric Acid Storage Tank - Specifications

10/03/2008 11:21 AM

What are the construction material requirements for 56%, 67%, and 98% concentration nitric acid?
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Anonymous Poster
#1

Re: Nitric Acid Storage Tank - Specifications

10/03/2008 8:05 PM

At what temperatures?

And are there any other constituents?
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gcros
Active Contributor

Join Date: Jun 2008
Posts: 10
#7
In reply to #1

Re: Nitric Acid Storage Tank - Specifications

10/04/2008 6:30 AM

Ambient temperatures. Storage use primarily. Thanks for your interest.
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Anonymous Poster
#11
In reply to #1

Re: Nitric Acid Storage Tank - Specifications

04/08/2009 1:38 AM

Dear sir

Thank you for givivng opportunity use your CR4 Site

we are pleased to introduce as chemical company in Saudi arabia. we need to store Nitric Acid -68-70%. please advise us that Materialconstruction specifications and transfer pumps specifications. Here Ambient Temperature will be Maximum 520 C IN in summer. how long it can be stored.

Thanks and Regards

varaprasad
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MUKULMAHANT
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#2

Re: Nitric Acid Storage Tank - Specifications

10/03/2008 11:08 PM

For 98% Pure ALUMINIUM

ss 316L for the lower% ones
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Anonymous Poster
#4
In reply to #2

Re: Nitric Acid Storage Tank - Specifications

10/03/2008 11:44 PM

Actually, counterintuitively, 304L ss is better than 316L in nitric acid ........

............ In general, media that do not corrode Types 302, 304 and 304L, will not attack these molybdenum containing grades. One known exception is highly oxidizing acids such as nitric acid to which the molybdenum-bearing stainless steels are less resistant.

http://www.upmet.com/media/316-317.pdf
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MUKULMAHANT
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#8
In reply to #4

Re: Nitric Acid Storage Tank - Specifications

10/04/2008 10:50 PM

Thanks. This is Great information. 304L is half the cost of 316L.

CounterIntuitive is such a fine expression ....
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Anonymous Poster
#3

Re: Nitric Acid Storage Tank - Specifications

10/03/2008 11:38 PM

Passivated SS for all concentrations and temperatures below the boiling point. Al might be OK for 98% strong nitric, but what happens if someone gets water into the tank inadvertently? The corrosion rate for Al in 56% can be measured in miles per hour.
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Anonymous Poster
#5
In reply to #3

Re: Nitric Acid Storage Tank - Specifications

10/03/2008 11:45 PM

miles per hour?!?!?!

That's a lot.

(I got a chuckle out of that one)
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Anonymous Poster
#10
In reply to #5

Re: Nitric Acid Storage Tank - Specifications

03/16/2009 6:43 AM

CR4 ADMIN: Deleted Post

Vulgar/Rude/Improper Behavior: This post was deleted because it did not adhere to the behavioral policies of the site. Please review Section 14 of the CR4 Site FAQ and the CR4 Rules of Conduct.
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sensei2004
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Join Date: Aug 2008
Location: Australia
Posts: 15
#6

Re: Nitric Acid Storage Tank - Specifications

10/04/2008 3:59 AM

I would also consider plain carbon steel with epoxy or enamel coating.

sensei
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PWSlack
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#9

Re: Nitric Acid Storage Tank - Specifications

10/07/2008 8:36 AM

Consider using polypropylene instead?

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Anonymous Poster (6); gcros (1); MUKULMAHANT (2); PWSlack (1); sensei2004 (1)

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