Bernard calcimetry method

Calcimertery is the quantitative and qualitative measurement of soils or drilling samples to determine the amount  of carbonate in the sample and the type of carbonate rock such as (limestone, dolomite, and marl….etc.), it’s used widely in agriculture engineering and mud logging.

Bernard calcimeter is a simple device to determine the CaCo3 (calcium carbonate) content percentage.

The sample is placed in the flask provided, and hydrochloric acid is poured into a sample tube. After the hydrochloric acid has reacted with the sample, the carbon dioxide formed by the reaction pushes the water from the graduated burette into the glass-level container.

How to use :

1-  1- Wash the sample carefully, use gasoline if the mud used while drilling is oil-based, otherwise use water

2-    2- Dry the sample using an oven or any heating source 

3- Grind the sample into a powder using a lab pestle and mortar

4- Weight 2 decigrams using precise balance

1-      5- Put the sample into the flask

6- Add 3.7 ml of 50% diluted HCl inside a tube into the flask without any contact with the sample and close the flask firmly

1-      7- Adjust the height of the glass level container till you reach 0 in the graduated burette 

1  8- Now shake the flask to make contact between the sample and HCl acid, an emission of CO2 will be produced and push the water down in the graduated burette

2- 9-Record the evolution of the emitted CO2 in function of time(1min,3min,10min), and the ambient temperature too

1010- enter these readings in the “Carbonate Rock Analyzer Calcimetry tool” then click process to see the result.

Download Carbonate Rock Analyzer Calcimetry from here