Neutralizing Muriatic Acid - ratios?

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Neutralizing Muriatic Acid - ratios?

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Eatkinson

Post subject: Neutralizing Muriatic Acid - ratios?

PostPosted: Tue Aug 12, 2014 5:43 pm

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Turbo Slant 6

Joined: Thu Jul 31, 2003 12:59 pm
Posts: 851
Location: Los Angeles, CA
Car Model: 1963 Dart 170 Suburban

I'm acid-cleaning my 170 block right now with about a 50/50 Muriatic Acid/Water solution. Hopefully it's not too strong.

The acid slurry is ready to be flushed from the block. In order to effectively neutralize the released acid, about how much washing soda would I need to use? Figure about 3/4 of a gallon of acid was used to a gallon+ of H2O. The head wasn't on the block - plugged up all the holes as best I could to do this exercise so the volume of the engine is reduced from the levels stated in the FSM.

Once I've neutralized the acid from the block, about what ratio of soda to water would one use to neutralize what's left in the water jacket?

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emsvitil

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PostPosted: Tue Aug 12, 2014 5:58 pm

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Supercharged

Joined: Thu May 12, 2005 11:50 pm
Posts: 6291
Location: So California
Car Model: 64 Plymouth Valiant

I'd just add baking soda (cheap at Costco) until it stops fizzing......

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Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes