Magnesium ferrous sulphate

When the ratio of ferrous sulphate (FeSOJ to magnesium chloride (MgClj) is 0-76, the deposit shows pyrophoric properties, and these become more pronounced as the ratio increases to 1 25, after which they diminish and entirely... 

Ferrous sulphate, 2-normal III, XI Lead acetate, 1-normal IV Litmus solution, blue III Litmus solution, red III Magnesium chloride, 1-normal P. 55, V... 

Sulphatic waters contain sulphates mainly as sodium, calcium, and magnesium salts, and are consequently aperient. E.g., Bath, Cheltenham (Chadnor Villa Well), and Scarborough. If ferrous sulphate is present, as at Trefriw (Carnarvon, N. Wales), the waters are termed—... 

Oxidation of Ferrous Salts.—Ferrous salts are readily converted into ferric derivatives in a variety of ways. Thus their solutions are gradually oxidised upon exposure to air, with the deposition of basic ferric salts. The rate of oxidation by air in the presence of free acids is, in the case of ferrous sulphate, proportional to the partial pressure of the oxygen.6 Hence the addition of inert soluble salts, such as the chlorides and sulphates of sodium, potassium, or magnesium, to the solution reduces the rate of oxidation in proportion as they decrease the solubility of the oxygen.7... 

Stortenbeker bas also studied the mixed crystals formed by cadmium sulphate and ferrous sulphate by zinc sulphate and magnesium sulphate by magnesium sulphate and ferroiis sulphate by copper sulphate and manganese sulphate by cobalt chloride and manganese chloride. We shall limit ourselves to referring the reader to these valuable memoirs. 

Ammonium phosphate Potassium carbonate — Magnesium sulphate — Ferrous sulphate.. 

Methyl phenyl thioether with hexadecane in an aqueous culture medium of diammonium hydrogen phosphate, magnesium sulphate, traces of ferrous sulphate containing yeast extract after inoculation with Corynebacterium equi, FO 3730 and incubation during 3 days at 30°C, afforded (R)-methyl phenyl sulphoxide in quantitative yield (enantiomeric excess 75%) (ref. 181). 

Coagulants are often added in conjunction with lime to increase the settling rate of calcium carbonate and magnesium hydroxide. Most of these coagulants are acidic in nature and react with the alkalinity of the water. Commonly used coagulants include aluminium sulphate (alum), sodium aluminate, ferric sulphate and ferrous sulphate (Table 6.8). Alum reacts with natural alkalinity in water to form aluminium hydroxide floe (Equations 2.5—2.8) [14]. About 1 ppmofalumdecreaseswater alkahnity by 0.5 ppm and produces 0.44 ppm of CO2 ... 

Mitscherlich also measured the angles of the crystals of double sulphates of potassium and ammonium with magnesium, ferrous iron, manganese, zinc, copper, cobalt and nickel. This established the isomorphism of potassium and ammonium sulphates. He found that the double potassium sulphates had one proportion of water more than the double ammonium sulphates, and also obtained a salt crystallising in beautiful and large octahedra with exactly the same composition as alum but containing ferric oxide instead of alumina (ferric alum). He says he hoped to show that a study of crystallisations would give the compositions of bodies as certainly and definitely as chemical analysis . A letter from Humboldt to Mitscherlich said this beautiful work had exposed the incorrectness of Haiiy s view. ... 

Salts B solution. Magnesium sulphate 4 per cent, sodium chloride 0 2 per cent, ferrous sulphate 0 2 per cent and manganese sulphate 0-2 per cent in water. 

The somewhat remarkable fact that many sulphates when heated retain one molecule of water of crystallisation (called water of constitution ) very persistently, whilst the other molecules are eliminated with relative ease, this phenomenon being observable with copper, manganese, ferrous, nickel, cobalt, magnesium and zinc sulphates, has led to a... 

Ferrous ammonium sulphate Q. 73 Ferrous sulphide for H2S generator IV, VIII, X, P. 70 Lead dioxide IV, IX Lead monoxide IV, IX Lead nitrate Q. 47, IX Litmus paper, blue Litmus paper, red Magnesium metal, powder IV Magnesium metal, ribbon II, IV, V, VIII... 

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