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| Forums > Marijuana Growing > Indoor Grows - Hydro > Why does muriatic acid get a bad rap as a hydroponic pH down? | ||
| Why does muriatic acid get a bad rap as a hydroponic pH down? | Thread Tools | Search this Thread |
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#1 | |
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Member
Join Date: Apr 2010
Posts: 631
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Why does muriatic acid get a bad rap as a hydroponic pH down?
i dont think Muriatic acid is as bad as it sounds... unless im completely off base with my past research on the use of Muriatic acid as PH down.
Hydrochloric acid is the salt of hydronium ion, H3O+ and chloride. It is usually prepared by treating HCl with water. HCl + H2O -> H3O+ + Cl- Hydrochloric acid can therefore be used to prepare salts called chlorides. Hydrochloric acid is a strong acid, since it is completely dissociated in water. The chloride ion is the anion (negatively charged ion) Cl−. It is formed when the element chlorine (a halogen) gains an electron or when a compound such as hydrogen chloride is dissolved in water or other polar solvents. Chloride salts such as sodium chloride are often very soluble in water. Quote:
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#2 |
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Member
Join Date: Jan 2018
Location: Republic State of Banana
Posts: 193
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What I think you need to take in regard, is that Cl is a micro element. The plants need very little of this, so unless your running pure R/O water. Your most likely covered with Cl trace elements in your water source, as it's a common water treatment chemical.
My tab water contains Chlorid 100 mg/l, from the public Analysis Report from my water supply. Here the legal limit is 250 mg/l, but thats different from country to country. Using an acid like Phosphoric acid, your adding Phosphate (PO4) to your nutrient mix, a macro nutrient. When you add anything to your nutrient mix, your Ec/ppm is rising and your plant have a upper limit. If your nutrient mix's Ec get's higher then your plants Ec, a R/O starts and the nutrient flow is locked or reversed. So you have a max Ec/ppm, but you want to have as much nutrients available for your plants as possible. Given that the extra Cl ions, will take up space. Where you could have PO ions, your plants will have less nutrients available. Not a optimal choice Then there is the whole part of over feeding micro elements, it will lock out other nutrients. So if your not running a advanced hydro setup, with pure R/O water or otherwise have no Cl ions in the water source. There is little need and some risk, adding this to your nutrient mix. I hope this helps
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#3 |
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Member
Join Date: Sep 2010
Posts: 744
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I'm no scientist by any means. I go on; What works,....go with it.
I understand a lot of this acid is probably no good for the plants...hell any acid in great amounts is not good. But if the plant is not showing signs of torture than why not just use it especially if it is not going to be long term. (in my case I feel my well will naturally drop its own PH in the summer) |
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