Search results for: 's checker colorimeters parameter manganese'

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  • Manganese Manganese is associated with iron minerals, and occurs in nodules in ocean, fresh waters, and soils. It is an essential trace element for plants and animals. Manganese is used in steel alloys, batteries, and food additives. The common aqueous species are the reduced Mn 2+ and the oxidized Mn 4+ . The chemistry of manganese in water is similar to that of iron. Soluble manganese in groundwater is usually in the reduced state (Mn 2+ ). Upon exposure to air or other oxidants, ...
  • Hardness The hardness of water has traditionally been identified by the “soap” test. Hard water reacts with soap to form a precipitate (aka soap scum). This precipitation reduces the effectiveness of the soap and is seen as not being able to get the soap to lather with water as with washing your hands. Treated hard water, as with a water softener, will lather very easily since the ions that contribute to hardness are replaced with sodium or potassium as the water is treated. Wate...
  • Nutrient Analysis (NPK) The chemical composition of a nutrient solution includes differnet chemical elements. Nutrient analysis is necessary for better management of fertilization and to know the residues of fertilizers in relation to the crop. An analysis can highlight shortages and help the understanding of the causes of an abnormal growth. The three elements that are most needed by plants are nitrogen (N), phosphorous (P) and potassium (K). Nitrogen (N) is indispensable for the pl...
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