Search results
Results From The WOW.Com Content Network
Aluminium sulfate is a salt with the formula Al 2 (SO 4) 3.It is soluble in water and is mainly used as a coagulating agent (promoting particle collision by neutralizing charge) in the purification of drinking water [3] [4] and wastewater treatment plants, and also in paper manufacturing.
Up to 20% of aluminium from ingested antacid salts can be absorbed from the gastrointestinal tract – despite some unverified concerns about the neurological effects of aluminium, [11] aluminium phosphate and hydroxide salts are thought to be safe as antacids in normal use, even during pregnancy and breastfeeding. [12] [11]
The products can contain byproduct salts, such as sodium/calcium/magnesium chloride or sulfate. [ 12 ] Because of the explosion hazard related to hydrogen produced by the reaction of aluminium with hydrochloric acid, the most common industrial practice is to prepare a solution of aluminium chlorohydrate (ACH) by reacting aluminium hydroxide ...
The name "alum" is also used, more generally, for salts with the same formula and structure, except that aluminium is replaced by another trivalent metal ion like chromium III, or sulfur is replaced by another chalcogen like selenium. [1] The most common of these analogs is chrome alum KCr(SO 4) 2 ·12 H 2 O.
Aluminium salts used in many human vaccines are regarded as safe by Food and Drug Administration. [37] Although there are studies suggesting the role of aluminium, especially injected highly bioavailable antigen-aluminium complexes when used as adjuvant, in Alzheimer's disease development, [ 38 ] most researchers do not support a causal ...
Basic aluminium (or basic aluminum) is the name of more than one functional group consisting of aluminium with one or two hydroxy groups attached. Dihydroxyaluminium , Al(OH) 2 , also known as dibasic aluminium , is monovalent, and known in these compounds:
While aluminum salts can be irritating, aluminum sesquichlorohydrate is less irritating than products that contain aluminum chloride, yet weaker," says Dr. Taub.
More conveniently, the salt can be made by reacting nitric acid with aluminium hydroxide. Aluminium nitrate may also be prepared a metathesis reaction between aluminium sulfate and a nitrate salt with a suitable cation such as barium, strontium, calcium, silver, or lead. e.g. Al 2 (SO 4 ) 3 + 3 Ba(NO 3 ) 2 → 2 Al(NO 3 ) 3 + 3 BaSO 4 .