Aluminium acetate

Mercury and silver have long been known to have antibacterial properties and preparations of these metals were among the earliest used antiseptics, but have been replaced by less toxic compounds. Other metals such as zinc, copper, aluminium and tin have weak antibacterial properties but are used in medicine for other functions, e.g. aluminium acetate and zinc sulphate are employed as astringents. 

Almond shell Aluminium, atomized Aluminium, flake Aluminium-cobalt alloy Aluminium-copper alloy Aluminium-iron alloy Aluminium-lithium alloy Aluminium—magnesium alloy Aluminium-nickel alloy Aluminium-silicon alloy Aluminium acetate... 

In another experiment, different volumes (2.5, 5.0 and 10.0 ml) of 4,000 ppm solution of sodium acetate was added to 10.0 ml of 1,000 ppm solution of aluminium sulphate. In the normal reaction, no precipitate was obtained in cold and neutral solutions, but on boiling with excess reagent, a voluminous precipitate of basic aluminium acetate, Al(OH)2COOCH3, was formed. 

Cotton is treated with the following mixture Aluminium acetate prepared with 36-5 grams of alum per litre of water. 1-32 litres... 

If a dyeing test with cotton is required, this is mordanted by boiling with 5% aluminium acetate solution and then exposed for some time to hot, moist air for each gram of cotton 20 c.c. of the extract solution are used. 

With each of these four groups the procedure is as described later. In the first place, however, the colouring matter is investigated with reference to its tintorial properties by means of dyeing tests on non-mordanted cotton or wool, on wool mordanted with aluminium sulphate and cream of tartar, on wool mordanted with chromium fluoride and cream of tartar, on cotton mordanted with tannin and then with tartar emetic, on cotton mordanted with aluminium acetate and on cotton mordanted with chromium acetate. 

Sodium acetate solution no precipitate is obtained in cold, neutral solutions, but on boiling with excess reagent, a voluminous precipitate of basic aluminium acetate Al(OH)2CH3COO is formed ... 

Basic acetate-chloroform test Upon dissolving beryllium hydroxide (reaction 1) in glacial acetic acid and evaporating to dryness with a little water, basic berryllium acetate, BeO. 3Be(CH3COO)2, is produced, which dissolves readily upon extraction with chloroform. This forms the basis of a method for separating beryllium from aluminium, since basic aluminium acetate is insoluble in chloroform. The mixed hydroxides are treated as detailed above. 

Water is the most important component. Wet dressings are generally used to cleanse, cool and relieve pruritus in acutely inflamed lesions, especially where there is much exudation, e.g. atopic eczema. The frequent reapplication and the cooling effect of evaporation of the water reduce the inflammatory response by inducing superficial vasoconstriction. Sodium chloride solution 0.9%, or solutions of astringent substances, e.g. aluminium acetate lotion, or potassium permanganate soaks or compresses of approx. 0.05%, can be used. The use of lotions or... 

Calamine and astringents (aluminium acetate, tannic acid) may help. Local anaesthetics do not offer any long-term solution and since they are liable to sensitise the skin they are best avoided lignocaine is least troublesome in this respect. Topical doxepin... 

Acute weeping Lotions (aluminium acetate.calamine, wet dressings or soaks (sodium chloride, potassium permanganate) topical corticosteroid cream or lotion with antimicrobial if infected. Remove the cause where possible. Often exacerbated by soap and water. Antipruritics (not antihistamines or local anaesthetics) may be added to lotions, creams or pastes. 

This azo-dyestu F, which is insoluble, has a fine red colour, and possesses the property of forming a lake with alumina. By treatment with sodium bisulphite this body, like all azo-dyestuffs, yields an unstable sulphonic acid, which is only slightly coloured. If this compound is printed with aluminium acetate, and steamed, the sulphonic acid is decomposed, and the dyestuff combines with the alumina to a firmly adhering lake. 

Aludrox aluminium hydroxide magnesium carbonate magnesium l droxide. aluminium acetate [usan] (aluminium ethanoate) is used topically as a dermatological agent, antiseptic and... 

ASTRINGENTS precipitate proteins and are used in lotions to harden and protect skin where there are minor abrasions. They can also be used in lozenges, mouthwashes, eye-drops and antiperspirants. Examples include zinc oxide, and salts of aluminium (aluminium acetate, aluminium hydroxide). 

Aluminium acetate is astringent and hygroscopic and produces an acidic environment that is hostile to pathogenic bacteria. Aluminium Acetate (13%) Ear Drops BP can be used as an anti-inflammatory for eczematous otitis externa in the external ear canal. 

Stabilized emulsion of paraffin wax, and the recommended treatment is by a two-bath process in which the wax is applied first and the cloth is subsequently transferred to a liquor containing a metallic salt such as aluminium sulphate. Insoluble soaps have found extensive use in making water-repellent materials. In practice, aluminium soap is most favoured. The fabric is soaked, first in a soap solution and, after squeezing, in a bath containing alum. It is then dried and hot pressed to melt the aluminium soap so that it will be evenly spread and will adhere firmly. As an example, the first liquor might well be a 0-2 per cent soap solution, and the precipitating bath might contain a 0-1 per cent solution of aluminium acetate. 

The reaction temperature could be lowered by using the precursor method of preparation, e.g. dissolve cobalt acetate and aluminium acetate in acetic acid. Evaporate to dryness and heat the residue. 

Aluminium acetate, known as red liquor, or mordant rouge, is used in dyeing for the production of red colour. One method of preparation is to add a solution of alum to acetate of lime liquor. The lime is precipitated as sulphate, its place being taken by the aluminium forming the acetate. 

Acetic acid is used as a solvent for resins and oil. Its salts are as important as the acid itself. For example, methane is produced from sodium acetate and acetone is produced from calcium acetate. Aluminium acetate is used in dyeing as a mordant, for proofing paper and fabrics and in pharmacy as an antiseptic and astringent. Cellulose acetate, an acetic acid derivative, is used in lacquers, shatter- proof glass, varnishes and as a fiber. Acetic acid is also the starting material in the production of rubber. 

M en freshly precipitate, it is insoluble in H,0 soluble in acids and solutions of the fixed alkalies. When dried at a temperature above 50° (122° F ), or after 24 hours contact with the mother liquor, its solubility is greatly diminished. With acids it forms salts of aluminium and with alkalies, aluminates of the alkaline metal. Heated to near redness it is decomposed into A1,0, and H O. A soluble modification is obtained by dialysing a solution of ALH O in A1,C1 or by heating a dilute solution of aluminium acetate for 0 houra... 

Treatment with Mordant The mordant is essential for the dyeing process of the cloth or yarn in both the Turkish red and alizarin procedure. The mordant is necessary as fixative for the dye. Before 1750 alum was the main mordant used. After 1750 other mordants like basic aluminium sulphate and soda or chalk, aluminium acetate and later on aluminium sulphoacetate were used [20]. 

Fixation of the mordant The fixation is mostly achieved by drying of the textile at low temperature. Kiel showed that the formation of Al(OH)3 out of aluminium acetate mordant and sulphonate mordant is essential for the fixation. He demonstrated that the deposition of Al(OH)3 in the fibres was maximal if the pH lies between 4 and 9 during the fixation. At pH < 4 or pH > 9 the Al(OH)3 dissolves again. Kiel found that fixation of the textile at 40°C for 30 min or 1 min at 70°C in 3 ml sodium silicate solution (or 10 g chalk/L) are the best conditions [20]. 

The more widely applicable mordants are inorganic basic salts which form compounds with acidic dyes. When cotton is treated with aluminium acetate and subjected to the action of steam, the salt undergoes hydrolysis and basic acetates are formed. Cloth treated in this way can be dyed directly, as the basic salts form insoluble compounds with dyes. In mordanting cloth to be dyed with basic colors, a compound is used which is an acid or yields an acid on hydrolysis. Tannic acid. 

Information from the WebElements site aluminium acetate SeeALUMiNiuM... 

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