Trial #1

Trial #1

To test the efficiency of 5% citric acid in removing rust from brass and copper coupons.

2023

31

2

0

0

Coupon

07/26/2023

10.00

Immersion/Soak

Siddhant Trivedi

Brass
Copper

Rust/Scale

None

None

Visual

Take 6 pre rusted brass and copper coupons and set them aside in trays.

Take citric acid crystals in a beaker to make the 5%citric acid solution. Stir until the crystals completely dissolve.

In this experiment,550 ml of the solution was prepared so 27.5g of citric acid crystals was used.  

Once the 5% citric acid is ready, immerse the brass/copper coupons in it and leave it for 10 min.

After the 10 min, take out the coupons and give it a gentle wipe down with kimwipes to dry out the coupons of the citric acid .

The initial visual reading would be a 5 so accordingly on how much you think the rust has been removed, give a reading from 1-5(1- being rust has been totally removed, 5-being no change)

The result of this experiment was no change. We started with an initial rating of 5 and the final rating would be a 5 as well.

The citric acid did not seem to remove any rust from the coupons. Possible solutions could be increase the concentration of citric acid or use external conditions like heat, ultrasonics.

No relation