Magnesium iron alum

Quinolones Group toxicity agents in this group are malabsorbed in the presence of magnesium, calcium, alum absorption theophylline metabolism is impaired higher oral doses may be needed to treat CAPD inum, and iron photosensitivity, food, dairy products, tube feeding, may also impair aeritonitis ... 

The bronze age did not arrive in China until around 1500 bce, and iron appeared only about 500 bce, but by the beginning of their alchemical age, around 100 ce, the Chinese had knowledge of zinc and brass (a copper-zinc alloy), mercury, sulfur, and several of the common salts, such as niter. In the 400s bce an administrator made a list of known materials that included lead oxide, lead carbonate, sulfur, calcium carbonate, hydrated calcium sulfate, ferric oxide, niter, talc or soapstone, hydrated magnesium silicate, alum (the double sul-... 

Flame retardant - [ALUMENUMCOMPOUNDS - ALUMINUM SULFATE AND ALUMS] (Vol 2) - [AMMONIUMCOMPOUNDS](Vol2) - [VINYL POLYMERS - VINYL CHLORIDE POLYMERS] (Vol24) -ethyleneimines [IMINES, CYCLIC] (Vol 14) -filler for [LEAD COMPOUNDS - LEAD SALTS] (Vol 15) -iron compounds as [IRON COMPOUNDS] (Vol 14) -magnesium hydroxide as filler [MAGNESIUMCOMPOUNDS] (Vol 15)... 

The ash is almost completely soluble in hydrochloric acid the insoluble part, consisting of sand and earth, should not exceed 0-3% of the flour. About 50% of the ash is phosphoric anhydride, the remainder being oxides of potassium, calcium, magnesium, sodium and iron, with traces of silica and chlorine. Lead, copper, zinc and alum should be absent. 

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. ... 

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