The sediment of a lake-its muddy bottom layer-contains relatively high concentrations of nitrogen and phosphorus. These can be released to water, particularly under conditions of low oxygen concentrations. The nutrients in the sediment come from the past settling of algae and dead organic matter.
Potassium permanganate is an inorganic chemical compound with the chemical formula KMnO 4. It is a salt consisting of K+ and MnOâ 4 ions. Formerly known as permanganate of potash or Condy's crystals, it is a strong oxidizing agent.It dissolves in water to give intensely pink or purple solutions, the evaporation of which leaves prismatic purplish-black glistening crystals.In 2000, worldwide production was estimated at 30,000 tonnes.Using sodium hydroxide the end product is not sodium manganate but an Mn(V) compound which is one reason the potassium permanganate is more commonly used than sodium permanganate. Furthermore the potassium salt crystallizes better).
Where to Buy . You can buy potassium permanganate at Amazon, in pet stores, pool supply stores, and hardware stores. Pay attention to the concentration that you are getting when you it. Usually the concentration is 1% to 5%, which will then be dissolved further with water. If possible, buy small packets of 1g potassium permanganate. This will make it easier to measure out dosages. You can also get tablets of potassium permanganate. Tablets generally have 400mg per tablet.