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Calcium carbonate

Calcium carbonate

Chemical compoundWikipedia

Search complete. 4 mentions across 4 episodes found for "Calcium carbonate".

Sep 22, 2026

Jen LardasHOST
33:01
Mm.
Ross TretheweyPANELIST
33:01
So it's measured in calcium carbonate, is the CaCO3 is the, is what you'd be looking at on the, on the test.
Ross TretheweyPANELIST
33:08
That'll tell you how much calcium's in that water.
Ross TretheweyPANELIST
33:11
Um, and it puts you on-
Adam MarceticNARRATOR
73:52
It looks like stone and, under the name of lime nitrogen or calstickstoff or nitrolym, is sold as a fertilizer.
Adam MarceticNARRATOR
74:04
if it is desired to get ammonia it is treated with superheated steam the reaction produces heat and pressure so it is necessary to carry it on in stout autoclaves or enclosed kettles The cyanamide is completely and quickly converted into pure ammonia and calcium carbonate, which is the same as the limestone from which carbide was made.
Adam MarceticNARRATOR
74:32
The reaction is CaCN2, calcium cyanamide, plus 3H2O, water, goes to CaCO3, calcium carbonate, plus 2NH3, ammonia.
Adam MarceticNARRATOR
74:52
Another electrical furnace method, the Serpak process, uses aluminum instead of calcium for the fixation of nitrogen, bauxite, or impure aluminum oxide.
Adam MarceticNARRATOR
75:06
The ordinary mineral used in the manufacture of metallic aluminum is mixed with coal and heated in a revolving electrical furnace through which nitrogen is passing.
Leonie SmithHOST
8:05
But I'd like to walk you through how, because I had the mechanism slightly wrong in my own head for a while, and the real version that I figured out a couple of years ago is really way more cool.
Leonie SmithHOST
8:15
So agricultural lime is a calcium carbonate.
Leonie SmithHOST
8:18
Its formula is CaCO3, so one calcium, one carbon, and three oxygens.
Leonie SmithHOST
8:24
In WA, the main sources are limestone and dolomitic lime.
Leonie SmithHOST
8:30
Now, the part that does the work is not the calcium and it's not the oxygen on its own.
Chris BaileyHOST
2:21
with questions from you.
Chris BaileyHOST
2:24
before we talk about the kit we need to talk about the enemy because if you don't understand what water treatment is fixing you'll fit the wrong kit for the wrong reason and the customer will still have a problem the enemy is named precipitation not the rain kind the chemistry kind here's what you need to know water in a lot of the uk especially the south the midlands and parts of the east is what we call temporary hard water Temporary hard water contains calcium carbonate, chemical symbol CaCO3.
Chris BaileyHOST
2:59
Most people just call it limestone because that is literally what it is.
Chris BaileyHOST
3:04
Dissolved limestone carried in the water, invisible to the eye.

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