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Coastal and Marine Geology Program
Woods Hole Field Center

Geochemical Sediment Analysis Procedures, Open-File Report 02-371

HYDROCHLORIC ACID STEP


HYDROCHLORIC ACID STEP
Materials Required: Hydrochloric acid preparation materials
Add 5mL of HCl to each Teflon tube using 10mL pipet. Pipetting into tube

Loosely cap tube and swirl by hand.

*Cap loosely to allow organic vapors to escape during the treatment process.

 Swirling sample in tube

Let sit 1-3 hours until reaction is completed.

*This allows time for the reaction to go to completion.
The HCl reacts with the sediment and removes the carbonates.

*Refer to JHA before starting each process for further personal protection and potential hazards.

Proceed to centrifuge step.

 Hydrochloric reacting with sediment

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