Author Topic: Water chemistry  (Read 487 times)

Offline MeMa

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Water chemistry
« on: December 01, 2020, 04:13:11 am »
I am calculating the result of boiling water using the formula:      Ending Ca (ppm) = Starting Ca (ppm) - ((starting HCO3 (ppm) - ending HCO3 (ppm))/3.05)   Can anyone tell me what the 3.05 is?

Offline dmtaylor

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Re: Water chemistry
« Reply #1 on: December 01, 2020, 04:55:26 am »
Possibly a conversion for magnesium, since everything else in the calculation assumes only calcium.
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Offline MeMa

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Re: Water chemistry
« Reply #2 on: December 01, 2020, 08:14:45 am »
Hi dmtaylor, I know its not Magnesium, I Think it might be a Molarity conversion or Atomic weight but not sure, still trying to find out. Thanks though

Offline Silver_Is_Money

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Re: Water chemistry
« Reply #3 on: December 01, 2020, 08:44:30 am »
It is the molar equivalence ratio between the EQ weight of the HCO3- ion and the Ca++ ion.

MW HCO3- = 61.01684
EQ_WT HCO3- = 61.01684
MW Ca++ = 40.078
EQ_WT Ca++ = 20.039

61.01684/20.039 = 3.044904436 (the correct value)

Or when simplified:  61/20 = 3.05 (the simple value)
« Last Edit: December 01, 2020, 08:48:49 am by Silver_Is_Money »

Offline MeMa

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Re: Water chemistry
« Reply #4 on: December 01, 2020, 08:51:21 am »
Hi Silver_Is_Money

Thank you very much. Remember Bitcoin Is Now Money