Post by Carl on Dec 8, 2020 14:21:52 GMT -5
Aquarium/Pond Answers recommends this article from our library.
www.aquarium-pond-answers.com/2007/04/aquarium-water-conditioners.html
"Aquarium Water Conditioners; Review, Information"
Here is an excerpt from the overview:
"The basic premise of an aquarium (or pond) water conditioner is to remove chlorine from tap water via Redox Reduction.
The most common active ingredient is sodium thiosulfate, however other similar sulfate based reducers or combinations there of are also used, especially in more advanced water conditions. This is why many have a subtle “rotten egg” sulfur smell.
As well, there are many other reducers that can break down chlorine including Vitamin C (albeit generally not always as rapidly at safe doses, reference Tap Water in Aquarium/Pond; Vitamin C Use). Even UVC energy from a True UV Sterilizer will slowly break down chlorine.
Being a reducer and chlorine oxidizer, the chemical reaction is essentially instant (see the experiment a few paragraphs down in the article).
As noted, most aquarium/pond water conditioners use sulfates such as sodium thiosulfate. Thiosulfate is a Redox reducing agent. It is routinely used as a titrant to determine concentrations of oxidants such as hypochlorite in bleach and dissolved oxygen in water.
It INSTANTLY dechlorinates water via this Redox reaction (producing new compounds including H2O), it does NOT alter the chlorine as is done in changing ammonia ions (NH3) to non toxic ammonium (NH4)"
www.aquarium-pond-answers.com/2007/04/aquarium-water-conditioners.html
"Aquarium Water Conditioners; Review, Information"
Here is an excerpt from the overview:
"The basic premise of an aquarium (or pond) water conditioner is to remove chlorine from tap water via Redox Reduction.
The most common active ingredient is sodium thiosulfate, however other similar sulfate based reducers or combinations there of are also used, especially in more advanced water conditions. This is why many have a subtle “rotten egg” sulfur smell.
As well, there are many other reducers that can break down chlorine including Vitamin C (albeit generally not always as rapidly at safe doses, reference Tap Water in Aquarium/Pond; Vitamin C Use). Even UVC energy from a True UV Sterilizer will slowly break down chlorine.
Being a reducer and chlorine oxidizer, the chemical reaction is essentially instant (see the experiment a few paragraphs down in the article).
As noted, most aquarium/pond water conditioners use sulfates such as sodium thiosulfate. Thiosulfate is a Redox reducing agent. It is routinely used as a titrant to determine concentrations of oxidants such as hypochlorite in bleach and dissolved oxygen in water.
It INSTANTLY dechlorinates water via this Redox reaction (producing new compounds including H2O), it does NOT alter the chlorine as is done in changing ammonia ions (NH3) to non toxic ammonium (NH4)"
