Changes for page Calciumcarbonate content
Last modified by TerraIndex TerraIndex on 2021/09/30 15:20
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... ... @@ -13,13 +13,15 @@ 13 13 To determine the amount of chalk (CaCO,,3,,) present in a soil sample one needs to use hydrochloric acid (10% HCl) and drip this on the sample. The amount of fizzing is the indication for the amount of chalk present. One must take into consideration that the fizzing is also determined by the speed of the hydrochloric acid in the sediment. For example: sand will give a quicker and more violent fizzing than clay, but clay will fizz for a longer time. 14 14 15 15 16 -Amount of calcium 16 +**Amount of calcium** 17 17 18 18 (% class="table-hover" %) 19 19 |=((( 20 -=== Indicator === 20 +(% class="wikigeneratedid" id="HIndicator" %) 21 +Indicator 21 21 )))|=((( 22 -=== Reaction 10% HCl === 23 +(% class="wikigeneratedid" id="HReaction1025HCl" %) 24 +Reaction 10% HCl 23 23 ))) 24 24 |Calcium free|No fizzing, less than 0.5% CaCO,,3,, 25 25 |Low calcium|Audible fizzing, about 0.5% CaCO,,3,, ... ... @@ -27,7 +27,6 @@ 27 27 |Calcareous|Audible fizzing and less visible, about 2% CaCO,,3,, 28 28 |Calcium rich|Visible fizzing, more than 1 or 2% CaCO,,3,, 29 29 30 -(% class="wikigeneratedid" %) 31 31 = See also = 32 32 33 33 Color