Full Length Research Paper Heavy metal concentration in fishes from surface water in Nigeria…
Nigeria is known globally for the production of certain food. For instance, Nigeria is the largest producer of cassava and fifth largest producer of oil palm in the world (Izah and Ohimain, 2015). Also, the country has several economic trees and this has been
ANALYSIS OF SOME METALS IN SOME BRANDS OF TEA SOLD IN KANO, NIGERIA
Calcium, which is the most common mineral in the body, helps in the transport of long chain fatty acids, which aid in prevention of diseases, high blood pressure and other cardiovascular diseases. The obtained calcium levels are shown in Fig 2 with a mean of 3 3
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List of minerals - Wikipedia
This is a list of minerals for which there are articles on Wikipedia. Minerals are distinguished by various chemical and physical properties. Differences in chemical composition and crystal structure distinguish the various species. Within a mineral species there may be variation in physical properties or minor amounts of impurities that are
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why does calcium chloride cause discoloration in concrete
2. Calcium chloride in concrete is a primary cause of concrete discoloration. The chances for discoloration are much less if calcium chloride or chloride-bearing chemical admixtures are not used. 3. The type, kind, and condition of formwork can in-fluence surface
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metallic connection. In reinforced concrete, the rebar may have many separate areas at different energy levels. Concrete acts as the electrolyte, and the metallic connection is pro-vided by wire ties, chair supports, or the rebar itself. Corrosion is an and ions
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Corrosion inhibition effect of calcium gluconate on mild …
The corrosion inhibition effect of non-toxic calcium gluconate at 0.75%, 1.25%, 1.75% and 2.25% concentration on mild steel in artificial seawater (3.5% NaCl) was studied by potentiodynamic polarization, coupon measurement, optical microscopy characterization
Atomic absorption spectrometric determination of …
2000/7/31· Hence, to determine all metallic elements including calcium in protein sources by atomic absorption spectroscopy using air–acetylene flame, the correct amount of lanthanum or strontium (3000 ppm) must be present in the sample stock solution prior to analysis.
South Africa and Nigeria ranked first to fifth respectively (WHO, 2008). Calcium, an important constituent of bones and teeth, is the fifth most common metallic element in the body and highly essential for normal body development. It is found in
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non-metallic raw materials and large market of Nigeria which is supplied from abroad. On this basis, considerations to establish and subsequently diversify ceramic industries are substantiated. The Ministry of Commerce and Industry had fea sibility studies
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1. Wastewater characteristics and effluent quality …
1.2 Characteristics of wastewaters Municipal wastewater is mainly comprised of water (99.9%) together with relatively small concentrations of suspended and dissolved organic and inorganic solids. Among the organic substances present in sewage are
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Water Handbook - Ion Exchange & Water …
Calcium sulfate precipitation can occur in a strong acid ion unit operated in the hydrogen cycle. At the end of a service cycle, the top of the resin bed is rich in calcium. If sulfuric acid is used as the regenerant, and it is introduced at too high a concentration or too low a flow rate, precipitation of calcium sulfate occurs, fouling the resin.
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Case Study: Hard Water - Chemistry LibreTexts
Calcium (Ca 2 +) and magnesium (Mg 2 +) ion. They are important because both are essential nutrients, which means they are necessary for the proper function of the body and are also important for the prevention of many diseases and other ailments.
Metallic Stearates Market 2020 COVID-19 Impact on …
2020/7/1· Jul 01, 2020 (The Expresswire) -- Global "Metallic Stearates Market" 2020 Industry Research Report is an inside-out and expert examination on the flow