Ammonium aluminum sulfate

240.16900

239.94300

232-055-3

DPU64XYB1D

DTXSID7051428

White powder|COLORLESS HEXAGONAL CRYSTALS

2833309000

177.69000

0.48960

2.45 g/cm³ @ Temp: 20 °C

94.5 °C

330ºC at 760 mmHg

slightly soluble H2O; insoluble EtOH [CRC10]

Extremely reactive with air, moisture and compounds containing active hydrogen and therefore must be kept under a blanket of inert gas. /Aluminum alkyls/|In general, materials ... toxic as stored or which can decompose into toxic components ... Should be stored in cool ... ventilated place, out of ... sun, away from ... fire hazard ... be periodically inspected and monitored. Incompatible materials should be isolated ...|All possibility of contact with water must be avoided. Solution containing not more than 20% of these compounds in non-reactive solvents, however, can be handled without risk of spontaneous ignition. /Aluminum alkyls/|Must be stored in an inert atmosphere; sensitive to oxidation and hydrolysis in air. /Trialkylaluminums/|Separate from air, water, halocarbons, alcohols. Store in a cool, dry, well-ventilated location. Outside or detached storage is preferred. Inside storage should be in a standard flammable liquid storage warehouse, room, or cabinet. /Aluminum alkyls/

Odorless

Strong astringent taste

Loses 20 molecules of H2O 120 °C /dodecahydrate/

III

6.1

UN2810

S26-S36

Low melting solids or colorless, volatile liquids. /Alkylaluminum halides/

Aluminum compounds are treated under anhydrous conditions to prevent violent reactions, recover solvent, and form Al compounds suitable for landfill by reaction with anhydrous hydrolysis agent, eg calcium hydroxide. /Aluminum compounds/|SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational exposure or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in soil or water; effects on animal, aquatic, and plant life; and conformance with environmental and public health regulations.

... Ammonia is liberated simultaneously from ammonium aluminum. Alkali hydroxides and carbonates, borax, and Lime water precipitate aluminum hydroxide from solution of aluminum. /Aluminum/|Extremely reactive with air, moisture, and compounds containing active hydrogen... /Alkyl aluminum compounds/|Reacts violently with a broad range of materials including air & water. /Aluminum alkyls/

Aluminum ammonium sulfate is generally recognized as safe when used in accordance with good manufacturing practice.|Aluminum ammonium sulfate used as a general purpose food additive in animal drugs, feeds, and related products is generally recognized as safe when used in accordance with good manufacturing or feeding practice.

Not Classified

Wear appropriate personal protective clothing to prevent skin contact. /Aluminum (soluble salts and alkyls, as Al/|Wear appropriate eye protection to prevent eye contact. /Aluminum (soluble salts and alkyls, as Al)/|Protective clothing and a high standard of training in the necessary precautionary measures are essential for the handling of the materials. /Aluminum alkyls/

Certain polymerization catalysts, such as aluminum alkyls, react & burn violently on contact with water. /Aluminum alkyls/|Aluminum alkyls are organic aluminum compounds that are highly reactive and dangerous because of spontaneous burning in air. /Aluminum alkyls/|Prophoric material in flammable solvent. Vapors are heavier than air & may travel to a source of ignition & flash back. /Aluminum alkyls/

...Violently explosive when they come into contact with water. /Aluminum alkyls/

Stop flow of liquid before extinguishing fire. Use dry chemical or carbon dioxide. DO NOT use water as straight stream directly on spilled material. Water fog can be used to control fire. DO NOT use halogenated extinguishing agents on spilled material. Violent reaction may result. Use water spray to keep fire-exposed containers cool. Fight fire from protected location or maximum possible distance. /Aluminum Alkyls/

Aluminum was recovered from aluminum sludge at a water treatment plant by addition of sulfuric acid. Optimum pH was 2.0 for alum recovery. Under optimal conditions, the recovered aluminum is as efficient as virgin aluminum in treatment of sewage for phosphorus removal. /Aluminum/

SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.|Work clothing that becomes wet or significantly contaminated should be removed and replaced. /Aluminum (soluble salts and alkyls, as Al)/|Workers whose clothing may have become contaminated should change into uncontaminated clothing before leaving the work premises. /Aluminum (soluble salts and alkyls, as Al)/|The worker should immediately wash the skin when it becomes contaminated. /Aluminum (soluble salts and alkyls, as Al)/|SRP: Contaminated protective clothing should be segregated in such a manner so that there is no direct personal contact by personnel who handle, dispose, or clean the clothing. Quality assurance to ascertain the completeness of the cleaning procedures should be implemented before the decontaminated protective clothing is returned for reuse by the workers. Contaminated clothing should not be taken home at end of shift, but should remain at employee's place of work for cleaning.

The International Maritime Dangerous Goods Code lays down basic principles for transporting hazardous chemicals. Detailed recommendations for individual substances and a number of recommendations for good practice are included in the classes dealing with such substances. A general index of technical names has also been compiled. This index should always be consulted when attempting to locate the appropriate procedures to be used when shipping any substance or article.|The International Air Transport Association (IATA) Dangerous Goods Regulations are published by the IATA Dangerous Goods Board pursuant to IATA Resolutions 618 and 619 and constitute a manual of industry carrier regulations to be followed by all IATA Member airlines when transporting hazardous materials.|No person may /transport,/ offer or accept a hazardous material for transportation in commerce unless that person is registered in conformance ... and the hazardous material is properly classed, described, packaged, marked, labeled, and in condition for shipment as required or authorized by ... /the hazardous materials regulations (49 CFR 171-177)./

/Aluminum (dust or powder) is a/ may cause minor irritation to lungs & eyes. /Aluminum powder, uncoated/|Irritation of the eyes has been noted in patients who have been exposed /to aluminum alkyls/. /Aluminum alkyls/|May cause minor irritation to lungs or eyes. /Aluminum (dust or powder)/

Vacated 1989 OSHA PEL TWA 2 mg/cu m is still enforced in some states. /Aluminum (soluble salts & alkyls, as Al)/

Recommended Exposure Limit: 10-Hr Time-Weighted Avg: 10 mg/cu m (total). /Aluminum/|Recommended Exposure Limit: 10 Hr Time-Weighted Avg: 5 mg/cu m (resp). /Aluminum/|Recommended Exposure Limit: 10 Hr Time-Weighted Avg: 2 mg/cu m. /Aluminum (soluble salts and alkyls, as Al)/|Recommended Exposure Limit: 10 Hr Time-Weighted Avg: 5 mg/cu m. /Aluminum (pyro powders and welding fumes, as Al)/

IDENTIFICATION AND USE: Aluminum ammonium sulfate is a white odorless powder with a strong astringent taste. It also exists as colorless hexagonal crystals. It is freely soluble in glycerol; practically insoluble in alcohol. It is soluble in water, and dilute acid. Mordant in dyeing, water and sewage purification, sizing paper, re-tanning leather, clarifying agent, food additive, manufacture of lakes, and pigments, and fur treatment HUMAN EXPOSURE AND TOXICITY: Irritation of the eyes has been noted in patients who have been exposed to aluminum alkyls. Not classifiable as a human carcinogen. Aluminum (dust and powder) may cause irritation to lungs and eyes. ANIMAL STUDIES: Experimentally in animals, aluminum ammonium sulfate solution has not produced corneal opacities, but in enucleated eyes it has produced some turbidity. Groups of male mice were administered this chemical in drinking water ad libitum 1 month. After treatment, the cerebrum, splenic macrophages and lymphocytes were collected. The expression of TNFalpha mRNA in cerebrum was significantly increased among aluminum treated groups compared with the control, in a dose dependent manner. Other cytokines did not show any aluminum related effects. In peripheral cells, there were no significant differences of cytokine mRNA expressions. Groups of 5 male mice were administered aluminum ammonium sulfate in drinking water ad libitum for 4 weeks. At the termination of aluminum exposure, their brains were removed and dissected into cerebrum, cerebellum, medulla oblongata, midbrain, corpus striatum, and hypothalamus. The concentration of norepinephrine (NE), dopamine (DA), dihydroxyphenylacetic acid (DOPAC), homovanillic acid (HVA), serotonin (5-HT), and 5-hydroxyindoleacetic acid (5-HIAA), were determined in each brain area. DA, DOPAC, and HVA levels were lower in the hypothalamus of aluminum treated mice, most notably in the low dose group, as compared with control. No marked alterations in NE, 5-HT, and 5-HIAA levels were detected in any brain region. Changes in the concentration of DA and its metabolites measured in the hypothalamus suggest an inhibition of DA synthesis by aluminum.

ACTIVITIES OF MAN INCR ALUMINUM CONTENT IN SURFACE WATER ... . /ALUM/

Astringent, styptic|VET: Astringent, styptic.

At one time /aluminum potassium sulfate or aluminum ammonium sulfate/ was used as eyedrops as a 1% aqueous solution in treatment of trachoma. Eyes contaminated with aluminum of unstated concentration and given first aid irrigation with water have been reported normal in a day or two.

... Electrophysiological recordings were made here from the whole chorda tympani nerve in gerbil to understand the interactive effect of astringent-tasting molecules with a broad spectrum of tastants including mono- and divalent salts, bitter compounds, acids, and sweeteners. The astringent tasting compounds were tannic acid (24 mM at pH's 2.9 and 5.5), aluminum ammonium sulfate (30 mM), aluminum potassium sulfate (10 mM) and gallic acid (30 mM). Hydrochloric acid (1 mM, pH 2.9) was also tested to control for acidity, since aqueous solutions of astringent-tasting compounds are acidic. ... The aluminum salts inhibited the chorda tympani responses to all stimuli tested.|...Electrophysiological recordings were made from the gerbil chorda tympani nerve and the rat lingual nerve. ...The astringent compounds tested were: tannic acid, tartaric acid, gallic acid, aluminum ammonium sulfate and aluminum potassium sulfate. ...The aluminum salts were tested at concentrations up to 160 mM only at low pH's. All compounds rapidly (and at lower concentrations, reversibly) stimulate the chorda tympani nerve in a concentration-dependent manner at all pH's tested. The rapidity and reversibility of the chorda tympani responses suggest that astringent-tasting compounds interact directly with taste cells rather than indirectly by precipitating salivary proteins.

aluminum ammonium sulfate

Grades: Technical, lump, ground, powdered; CP; NF /National Formulary grade of chemical/; FCC /Food Chemicals Codex/. /Ammonium aluminum sulfate dodecahydrate/

Incompatibilities: when aluminum is dispensed in powders with phenol, salicylates, or tannic acid, gray or green colors may be developed due to traces of iron in aluminum. /Aluminum/

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