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Suggested reading for the topic: Magnesium

Lenntech reading suggestions for the topic: Magnesium

1. Magnesium (Mg) - Chemical properties, Health and Environmental effects

... Magnesium (Mg)-Chemical properties, Health and Environmental effects Magnesium-Mg Search: Contact us Chemical properties of magnesium-Health effects of magnesium-Environmental effects of magnesium Atomic number 12 Atomic mass 24.305 g.mol -1 Electronegativity according to Pauling 1.2 Density 1.74 g.cm -3 at 20 ° C Melting point 650 ° C Boiling point 1107 ° C Vanderwaals radius 0.16 nm Ionic radius 0.065 nm Isotopes 5 Electronic shell [Ne] 3s 2 Energy of first ionisation 737.5 kJ.mol -1 Energy of second ionisation 1450 kJ.mol -1 Standard potential-2.34 ...

2. Water softener FAQ

... households questions Schematic representation of a water softener 1. Hard water 1.1 What is hard water? When water is referred to as 'hard ' this simply means, that it contains more minerals than ordinary water. These are especially the minerals calcium and magnesium. The degree of hardness of the water increases, when more calcium and magnesium dissolves. Magnesium and calcium are positively charged ions. Because of their presence, other positively charged ions will dissolve less easily in hard water than in water that does not contain calcium and magnesium. This ...

3. Calcium (Ca) - Chemical properties, Health and Environmental effects

... s shell, in the coral and in many soils. Seawater contains 0.15 %of calcium chloride. Calcium ions solved in water form deposits in pipes and boilers and when the water is hard, that is, when it contains too much calcium or magnesium. This can be avoided with the water softeners. In the industry, metallic calcium is separated from the melted calcium chloride by electrolysis. This is obtained by treatment of carbonated minerals with chlorhydric acid, or like a sub product of the carbonates Solvay process. In contact with ...

Popular related Subjects:

Water treatment decision tree

Periodic table of elements

Calcium

Ion exchanger

Water softener systems

Process water treatment

4. Sulfates

... oxidation of sulfite ores, the presence of shales, or the industrial wastes. Sulfate is one of the major dissolved components of rain. High concentrations of sulfate in the water we drink can have a laxative effect when combined with calcium and magnesium, the two most common constituents of hardness. Bacteria, which attack and reduce sulfates, form hydrogen sulfide gas (H 2 S). The maximum level of sulfate suggested by the World Health Organization (WHO) in the Guidelines for Drinking-water Quality, set up in Geneva, 1993 ...

5. Water chemistry FAQ

... on water, just like ice, due to its smaller density. What is hard water? When water is referred to as 'hard ' this simply means, that it contains more minerals than ordinary water. These are especially the minerals calcium and magnesium. The degree of hardness of the water exceeds, when more calcium and magnesium dissolve. Magnesium and calcium are positively charged ions. Because of their presence, other positively charged substances will dissolve less easy in hard water than in water that does not contain calcium and magnesium. This ...

6. The elements of the periodic table sorted by elements in human body

... Density 1 Phosphorus urine, bones-Melting point 0, 35 Potassium enzymes-Boiling point 0, 25 Sulphur proteins-Vanderwaals radius 0, 15 Sodium in all liquids and tissues (in terms of salt)-Year of discovery 0, 05 Magnesium lungs, kidney, liver, thyroid, brain, muscles, heart-Inventor surname traces Fluorine bones, teeth-Elements in earthcrust traces Chlorine in bodyliquid-Elements in human body traces Manganese enzymes-Covalenz radius traces Iron enzymes-Ionization energy traces Cobalt For chemistry students and ...

7. Water purification steps FAQ

... for instance to prevent the formation of certain reaction products. Below, a few of these additions are summed up:-Chelating agents are often added to water, in order to prevent negative effects of hardness, caused by the deposition of calcium and magnesium.-Oxidizing agents are added to act as a biocide, or to neutralize reducing agents.-Reducing agents are added to neutralize oxidizing agents, such as ozone and chlorine. They also help prevent the degradation of purification membranes. Clarification Clarification is a multi-step process to remove ...

8. Water softener - Lenntech

... Water softener-Lenntech Water softener Search: Contact us The hardness in water is caused by certain salts. The main hardness causing ions are Calcium (Ca2 +), Magnesium (Mg2 +) and Bicarbonate (HCO3). These ions are normally addressed as scale in the water causing (lime) scaling of pipes and equipment. Softening units offer a solution. In many applications, e.g. the preparation of drinking water, water in breweries and sodas, but also cooling-and boiler feed water the hardness of the water is of ...

9. Water softening systems

... Water softening systems Water softening systems Search: Contact us The hardness in water is caused by certain salts. The main hardness causing ions are Calcium (Ca2 +), Magnesium (Mg2 +) and Bicarbonate (HCO3). These ions or minerals are normally adressed as scale in the water causing scaling of pipes and equipment in drinking water and process water systems. Softening units offer a water purification solution for hard water and limescale removal. In many applications, e.g. the preperation of drinking water, water in breweries and sodas, but ...

10. Information on pure water

... , dispepsia, enteritis, congestión of the liver, biliary litiasis, hepatic colic., urico acid, arthritis, and the “ drop ”. Sodium and magnesics sulphated waters: Their mineralisation constitutes magnesium and sodium sulphates, accompanied generally by chloride and sulphate by lime. These waters have very noticeable laxative properties, when causing peristatics contractions and a liquid flow of the part of the intestine, forcing the purges characteristics depositions Sulphurous waters: The therapeutic action of these waters is eminently parasiticida and are specially advised in the affections of the ...

11. Ion Exchanger - Lenntech

... Ion Exchanger-Lenntech Ion Exchanger Search: Contact us Ion exchangers are used to remove salts (cations and anions) from the water. The applications are: Softening-Removal of Calcium (Ca) and Magnesium (Mg) ions Demineralisation-Removal of a part or all ions from water Treatment of radioactive waste water Removal of NH4+from waste water Selective cation ion-exchange for the removal of heavy metals Additional information about Ion Exchange: Principle Methods of regeneration Ion exchange vocabulary Ion Exchange reaction For every different application of water conditioning ...

12. Water treatment decision path - dissolved particles - Lenntech

... Decision tree foor dissolved particles begin-Lenntechte particles Inorganic organic substances problem dissolved salts Phospate complicated Precipitation reversosmosis iron reverse osmosis nanofiltration sandfiltration calcium magnesium Sulfite heavy metals desalination ionexchanger mixed Bed phosphate fluorite ion-exchanger filtration iron inorganic desalination color odour ...

13. Proceswater productie - Lenntech

... proceswater proces water process disinfectie ozon hergebruik zandfilter UV Ultraviolet UV ontsmetting filtratie integreren membraan membranen onthard ontharder zouten verwijderen vervuiling vervuilen ionen wisselaar wisseling anion kation hars hardheid Ca calcium Mg magnesium meter monitor fijnfiltratie ontharding adsorptie zoutreductie membraanfiltratie ionenwisselaar ontsmetting leidingwater b ...

14. The chemical elements of the periodic table sorted by density

... Sodium Na 11-Melting point 1.25 Nitrogen N 7-Boiling point 1.43 Oxygen O 8-Vanderwaals radius 1.55 Calcium Ca 20-Year of discovery 1.63 Rubidium Rb 37-Inventor surname 1.7 Fluorine F 9-Elements in earthcrust 1.74 Magnesium Mg 12-Elements in human body 1.78 Potassium K 19-Covalenz radius 1.82 Phosphorus P 15-Ionization energy 1.85 Beryllium Be 4 For chemistry students and teachers: The tabular chart on the right is arranged by Atomic number. The first chemical element with the lowest density is Hydrogen and the ...


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