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Activated Aluminum chlorohydrate is a complex inorganic salt that consists of complex basic aluminium chloride.
Activated Aluminum chlorohydrate is a soluble aluminum complex.
Activated Aluminum chlorohydrate is believed that ACH acts as an antiperspirant by precipitating inside the eccrine sweat glands to produce insoluble aluminium hydroxide, which then plugs the gland.
CAS Number: 12042-91-0
Molecular Formula: AlClH5O-
Molecular Weight: 83.47
EINECS Number: 234-933-1
Synonyms: Basic aluminum chloride, Aluminum chlorohydroxide, Aluminum chloride, basic, 407PSC3OC7, Aluminum chlorohydrate anhydrous, Aluminum chlorhydrate (Al2(OH)5Cl), Aluminum chlorohydrate (Al2(OH)5Cl), ALUMINUM CHLORHYDROXIDE (AL2(OH)5CL), BASIC ALUMINUM CHLORIDE (AL2(OH)5CL), ICEKING Refresh Armpit, DTXSID8050449, Every Man Jack Sea Salt Antiperspirant, Every Man Jack Cedarwood Antiperspirant, Every Man Jack Sandalwood Antiperspirant, 12042-91-0, 1327-41-9, aluminum chloride hydroxide, Aluminum(III) chloride pentahydroxide, H5Al2ClO5, SCHEMBL1727377, ZGRQKCWNBYXGOB-UHFFFAOYSA-H, AKOS025294168, NS00086067, ALUMINUM CHLOROHYDROXIDE, ALUMINUM CHLOROHYDROXIDE, DIHYDRATE, ALUMINUM HYDROXYCHLORIDE, DIHYDRATE, MACROSPHERICAL(R) 95, BASIC ALUMINUM CHLORIDE, CHLORHYDROL(R), POLYALUMINUM CHLORIDE, aluminum chloride oxide
Activated Aluminum chlorohydrate is used in cosmetics as an antiperspirant and as a coagulant in water purification.
In water purification, Activated Aluminum chlorohydrate is preferred in some cases because of its high charge, which makes it more effective at destabilizing and removing suspended materials than other aluminium salts such as aluminium sulfate, aluminium chloride and various forms of polyaluminium chloride (PAC) and polyaluminium chlorosulfate, in which the aluminium structure results in a lower net charge than aluminium chlorohydrate.
Further, the high degree of neutralization of the HCl results in minimal impact on treated water pH when compared to other aluminium and iron salts.
There are many soluble aluminium salts that can be used as antiperspirants, but they differ only in the relative amounts of aluminium, chloride, and zirconium.
Activated Aluminum chlorohydrate may be used in aerosol formulations.
Activated Aluminum chlorohydrate is also desirable because it has a pH of about 4.5, which is less acidic than other aluminum salts and, therefore, does not irritate the skin or damage clothing as much as plain aluminum chloride.
The empirical formula for ACH is Al2(OH)5Cl·2H2O.
However, when dissolved, the basic unit of ACH is more closely given by Al13O4(OH)24(H2O) with seven disassociated Cl ions.
Activated Aluminum chlorohydrate is a group of water-soluble, specific aluminium salts having the general formula AlnCl3n−m(OH)m.
Activated Aluminum chlorohydrate is best described as an inorganic polymer and as such is difficult to structurally characterize.
However, techniques such as gel permeation chromatography, X-ray crystallography and 27Al-NMR have been used in research by various groups including that of Nazar and Laden to show that the material is based on Al13 units with a Keggin ion structure and that this base unit then undergoes complex transformations to form larger poly-aluminum complexes.
Activated Aluminum chlorohydrate is an activated peak 4 aluminum chlorohydrate with high performance and spherical particle shape for lower residue.
Activated Aluminum chlorohydrates powder form and properties makes it dedicated to anhydrous applications such as aerosols.
Activated aluminum chlorohydrate is a specially processed or modified form of aluminum chlorohydrate, which is a type of inorganic polymer widely used in antiperspirants, water treatment, and cosmetic formulations.
In its activated form, the compound undergoes additional chemical or physical treatment—such as heating, purification, or particle-size optimization—that enhances its surface area, reactivity, or efficacy compared to the standard version.
This activation process is typically designed to improve the compound’s performance in specific applications.
For example, in personal care products, activated aluminum chlorohydrate is often used in antiperspirant formulas where it works more efficiently to block sweat glands and reduce underarm perspiration by forming a temporary gel-like plug within the sweat ducts, thereby minimizing moisture and odor.
Activated Aluminum chlorohydrate acts as a long-term perspiration-regulating agent.
Activated Aluminum chlorohydrate low iron qualities for reduced yellowing.
Activated Aluminum chlorohydrate is used in antiperspirant (aerosol spray or stick application) and deodorant, creams, lotions and aftershave formulations
Activated Aluminum chlorohydrate is an antiperspirant agent for the cosmetic industry.
Activated Aluminum chlorohydrate may be used to generate aqueous solutions of aluminum chlorohydrate.
Activated Aluminum chlorohydrate can also be incorporated in skin lotions, skin creams, and shaving lotions to achieve a slight astringent eect.
Activated Aluminum chlorohydrate is an antiperspirant agent for the cosmetic industry.
Activated Aluminum chlorohydrate is a mild astringent that has a slight deodorizing eect.
Activated Aluminum chlorohydrate is therefore used in a wide range of antiperspirant and deodorant formulations.
Activated Aluminum chlorohydrate is an antiperspirant active especially for roll-on and pump spray.
Acts as a long-term perspiration-regulating agent for all common deodorants.
Activated Aluminum chlorohydrate is also used in creams, lotions and aftershave formulations.
Activated Aluminum chlorohydrate and Locron P are high performing and well known antiperspirant agents for the cosmetic industry.
Activated Aluminum chlorohydrate basic aluminum (metal) salt consisting of aluminum, chloride and water.
Most widely used, very effective antiperspirant (reduces secretion of sweat) and deodorant (reduces bad odor by inhibiting bacterial growth).
Activated Aluminum chlorohydrate is a group of water-soluble aluminum complexes with the general formula AlnCl(3n-m)(OH)m.
Activated Aluminum chlorohydrate is included up to 25% in over-the-counter hygiene products as an active antiperspirant agent.
The primary site of action of aluminum chlorohydrate is at the level of the stratum corneum layer, which is relatively near the skin surface 1.
Activated Aluminum chlorohydrate is also used as a coagulant in the water purification process.
Aluminum salts plug eccrine sweat pores and forms aggregates with swear proteins that bind to the wall of the sweat duct and form a tenuous membrane 4.
Activated Aluminum chlorohydrate and P are enhanced efficacy antiperspirant actives, providing improved sweat reduction over standard Aluminum Chlorohydrate powder, ALOXICOLL PF40.
The increase in efficacy is attributed to an activation step, which causes a change in the polymer distribution.
Activated Aluminum chlorohydrate powders are used in anhydrous formulations, e.g. in aerosols, roll-ons, soft solids, creams and sticks, where maximum antiperspirant efficacy is required.
The enhanced efficacy can only be maintained in anhydrous systems, and contact with water should be avoided prior to application to the skin.
Activated Aluminum chlorohydrate is an enhanced efficacy antiperspirant active, providing improved sweat reduction over standard Aluminum Chlorohydrate powder, Activated Aluminum chlorohydrate.
The increase in efficacy is attributed to an activation step, which causes a change in the polymer distribution.
This can be measured by HPLC. A shift of polymers from bands 1 and 2 to band 3 indicates an enhanced sweat reduction.
Activated Aluminum chlorohydrate powder is a special, “low residue” active, which considerably reduces the level of visible deposits on the skin when used in formulations.
Density: 1.95[at 20℃]
vapor pressure: 0.001Pa at 20℃
InChI: InChI=1S/Al.ClH.H2O.3H/h, 1H, 1H2, , , /p-1
InChIKey: HMVUEGRSFKSLII-UHFFFAOYSA-M
SMILES: [AlH3].[OH-].Cl
In water treatment, the activated form may have a higher charge density or optimized particle size, allowing it to act more effectively as a coagulant, helping to remove impurities, suspended solids, and even some heavy metals from drinking or wastewater by binding them into larger particles that can be filtered out or settled.
Compared to regular Activated Aluminum chlorohydrate, the activated version may also offer better solubility, faster onset of action, or improved stability in formulations, which makes it especially valuable in industrial and pharmaceutical contexts where precision and reliability are important.
However, like all aluminum-based compounds, activated aluminum chlorohydrate must be used within regulated safety limits, as excessive exposure—particularly through inhalation or use on broken skin—has been associated with potential health concerns, although scientific consensus remains inconclusive for topical use.
Activated Aluminum chlorohydrate can be commercially manufactured by reacting aluminium with hydrochloric acid.
A number of aluminium-containing raw materials can be used, including aluminium metal, alumina trihydrate, aluminium chloride, aluminium sulfate and combinations of these.
The products can contain byproduct salts, such as sodium/calcium/magnesium chloride or sulfate.
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 with hydrochloric acid.
The Activated Aluminum chlorohydrate is reacted with aluminium ingots at 100 °C using steam in an open mixing tank.
The Al to Activated Aluminum chlorohydrate ratio and the time of reaction allowed determines the polymer form of the PAC n to m ratio.
Activated Aluminum chlorohydrate is a mild astringent that reduces perspiration and has a slight deodorising eect.
Activated Aluminum chlorohydrate is therefore used in a wide range of antiperspirant and deodorant formula-tions.
Activated Aluminum chlorohydrate has been used on a growing scale for many years throughout the world as an active ingredient in antiperspirant products.
Activated Aluminum chlorohydrate is generally well tolerated also on long-term use.
Although Locron is beeing well tolerated, dermatologi-cal trials should be carried with the nal antiperspirant/deodorant formulation to establish beyond doubt that no skin irritation is caused by the combination of products, each of which is in itself non-irritant.
Activated Aluminum chlorohydrate is a group of specic aluminum salts having the general formula AlnCl(3n-m)(OH)m.
Activated Aluminum chlorohydrate is used in cosmetics as an antiperspirant and as a coagulant in water purication.
In water purication, Activated Aluminum chlorohydrate is preferred in some cases because of its high charge, which makes it more eective at destabilizing and removing suspended materials than other aluminum salts such as aluminium sulfate, aluminium chloride and various forms of polyaluminium chloride (PAC) and polyaluminium chlorisulfate, in which the aluminum structure results in a lower net charge than aluminium chlorohydrate.
Further, the high degree of neutralization of the HCl results in minimal impact on treated water pH when compared to other aluminium and iron salts.
Activated Aluminum chlorohydrate is a group of specic aluminium salts having the general formula AlnCl(3n-m)(OH)m.
Activated Aluminum chlorohydrate is used in deodorants and antiperspirants and as a coagulant in water purication.
Activated Aluminum chlorohydrate is primarily used in antiperspirants and deodorants to reduce sweating by temporarily blocking sweat glands.
Activated Aluminum chlorohydrate works by forming a gel-like structure within the sweat ducts, reducing the flow of sweat to the skin's surface.
Additionally, it has astringent properties that causes the contraction of skin cells, which can help tighten pores and reduce oil production.
In its raw form, Activated Aluminum chlorohydrate appears as a white to off-white powder that is water-soluble.
Activated Aluminum chlorohydrate has been approved by major regulatory bodies such as FDA and is considered safe for use.
The chemical formula of Aluminum Sesquichlorohydrate is AlClH3O2+.
Activated Aluminum chlorohydrate is characterized by the highest aluminum concentration (23% Al2O3) in any commercially available aluminum-based solution.
Activated Aluminum chlorohydrate has a high cationic charge which makes it very effective at removing even very small particles required for drinking water purification.
In addition, it creates strong flocs that dewater well and leads to reduced levels of chemical sludge.
Because of the inherently high basicity (80-85%), Activated Aluminum chlorohydrate needs less alkalinity in the raw water than other coagulants.
As a result, Activated Aluminum chlorohydrate can be used in both high- and low-alkalinity waters, and it has very low impact on treated water alkalinity levels, so it decreases or eliminates the need for alkali addition.
Uses:
Activated Aluminum chlorohydrate is one of the most common active ingredients in commercial antiperspirants.
The variation most commonly used in deodorants and antiperspirants is Al2Cl(OH)5 (dialuminium chloride pentahydroxide).
Activated Aluminum chlorohydrate is also used as a coagulant in water and wastewater treatment processes to remove dissolved organic matter and colloidal particles present in suspension.
One of the most common and important uses of Activated Aluminum chlorohydrate is in the formulation of antiperspirant products, including roll-ons, sprays, gels, and sticks, where it serves as the active ingredient responsible for reducing sweat production.
Due to its activated state, this compound has enhanced absorption and reactivity, which allows it to form temporary gel-like plugs inside the sweat ducts, thereby blocking the flow of sweat to the skin surface more effectively than non-activated forms.
This makes it a preferred choice for clinical-strength or long-lasting antiperspirants, especially in products that promise extended dryness or protection under heavy physical activity or stress.
In water treatment systems, activated aluminum chlorohydrate is used as a coagulant, a substance that helps to aggregate fine particles, organic matter, and contaminants suspended in the water.
The "activation" process increases its surface area and ionic charge, which allows it to work more efficiently by binding to impurities and forming larger flocs (clusters) that can be easily filtered or settled out.
Because of its enhanced performance, activated forms are commonly used in municipal water systems, industrial wastewater treatment plants, and swimming pool filtration systems, where clarity, safety, and contaminant removal are essential.
Activated aluminum chlorohydrate is sometimes included in medicated creams, powders, and sprays, particularly those designed to address excessive sweating (hyperhidrosis) or skin irritation caused by moisture.
In pharmaceutical settings, its fast-acting and high-potency qualities make it suitable for treating localized sweating (such as on hands, feet, or underarms), especially in patients who do not respond to regular over-the-counter antiperspirants.
Activated Aluminum chlorohydrate is also sometimes used in prescription-strength antiperspirant solutions recommended by dermatologists for severe or chronic sweating conditions.
Due to its astringent and drying properties, activated aluminum chlorohydrate is used in deodorants, body powders, and cleansing wipes where it helps control moisture, reduce bacterial growth, and provide a fresh, dry feeling.
In cosmetics, it may also be used in makeup primers or oil-control formulas to help reduce shine and prolong wear, especially for people with oily skin types.
Its ability to temporarily tighten the skin and reduce pore size makes it occasionally useful in some cosmetic masks and treatments, although this is less common than its antiperspirant use.
In industrial processes, particularly those involving paper manufacturing, textile production, and dye processing, activated aluminum chlorohydrate is sometimes used to neutralize charges, adjust pH, or improve material consistency and filtration.
Activated Aluminum chlorohydrates coagulant properties also make it valuable in removing suspended solids and emulsified oils from industrial wastewater before discharge, helping companies meet environmental standards.
Activated aluminum chlorohydrate is a highly effective antiperspirant agent, and its enhanced chemical activity allows it to begin working more rapidly and more powerfully than non-activated forms.
Activated Aluminum chlorohydrate is frequently used in clinical-strength antiperspirants, including over-the-counter and prescription formulas that are designed for individuals with moderate to severe sweating conditions, such as primary axillary hyperhidrosis.
In these cases, the activated compound forms more robust protein-aluminum complexes that physically block the eccrine (sweat) glands in the skin.
This helps reduce both the volume of sweat and the associated odor caused by bacterial activity on the skin.
Activated Aluminum chlorohydrates use is especially common in sport and endurance-focused hygiene products, where long-lasting protection is crucial.
In addition, activated aluminum chlorohydrate is often formulated into low-residue or clear-gel products, making it more cosmetically appealing by reducing the risk of white marks or stains on clothing, which are common drawbacks of older aluminum salts.
In the field of environmental and industrial engineering, Activated Aluminum chlorohydrate is widely valued as an advanced coagulant and flocculant, capable of removing a broad range of impurities from water sources.
Compared to traditional coagulants like aluminum sulfate (alum) or ferric chloride, the activated form of aluminum chlorohydrate works more efficiently at lower dosages, often producing less sludge, requiring less pH adjustment, and yielding clearer water.
This is particularly important in systems treating surface water or wastewater with high organic loads, such as from textile factories, food processing plants, and chemical manufacturing facilities.
Activated Aluminum chlorohydrate’s rapid floc formation and improved filterability allow treatment plants to reduce filtration times, increase throughput, and save energy, making it not only effective but also economically and environmentally beneficial.
For individuals suffering from hyperhidrosis, a medical condition characterized by abnormally excessive sweating, activated aluminum chlorohydrate offers fast-acting relief.
Activated Aluminum chlorohydrate is commonly included in prescription-strength topical treatments, often in the form of alcohol-based roll-ons, gels, or lotions, which are applied at night to dry skin so that the active ingredients can effectively penetrate the sweat ducts.
These medical-grade formulations may be prescribed for sweating in the underarms, hands, feet, face, or groin area.
Activated aluminum chlorohydrate has also been studied for use in combination therapies alongside botulinum toxin injections (Botox), iontophoresis, or oral anticholinergics, to provide more complete sweat suppression in patients with severe or resistant forms of hyperhidrosis.
Although its primary use is in sweat control, activated aluminum chlorohydrate is occasionally used in cosmetic products targeting oily skin, such as primers, mattifying creams, facial blotting treatments, and makeup setting sprays.
Activated Aluminum chlorohydrate works by absorbing surface moisture and reducing sebaceous activity, thereby helping to minimize shine, blur pores, and keep makeup in place for longer durations, especially in hot or humid environments.
In some professional skincare lines, it may be used in products marketed for occasional excessive facial perspiration—sometimes referred to as “stress sweat”—which can interfere with makeup or lead to breakouts.
Activated Aluminum chlorohydrates astringent effect can also temporarily tighten the skin and reduce the appearance of enlarged pores, though these effects are usually short-term.
Activated aluminum chlorohydrate may also be employed in specialty industrial applications, where precise control of surface chemistry, charge balance, or pH is required.
In paper manufacturing, for instance, it can be used as a retention aid, improving the bonding of fibers and fillers, which enhances paper strength, opacity, and printability. In dye and pigment processing, it may help with color fixation, reducing waste and improving dye fastness.
Additionally, in the mining and petroleum industries, aluminum-based coagulants, including activated chlorohydrate, may be used during drilling fluid clarification or mineral extraction, where they help remove unwanted solids and improve the separation of oil and water phases.
Some body cleansing wipes, feminine hygiene products, or odor-control sprays may contain low levels of activated aluminum chlorohydrate to help neutralize moisture and odor, particularly in warm climates or for individuals with active lifestyles.
Its mild astringent effect allows it to reduce perspiration slightly, while also helping control the bacterial growth that contributes to body odor.
In pet grooming and household odor eliminators, similar ingredients may be used to absorb moisture and neutralize smell, especially in sprays designed for pet beds, shoes, or gym equipment.
Safety Profile:
Although activated aluminum chlorohydrate is generally considered safe for use in topical cosmetic and medical products, especially when used according to recommended guidelines, it may still cause mild to moderate skin irritation in some individuals.
A mild human skin irritant.
The U.S. Food and Drug Administration considers the use of aluminium chlorohydrate in antiperspirants to be safe and it is permitted in concentrations up to 25%.
Studies have found only a negligible association between exposure to and long-term use of antiperspirants and Alzheimer's disease.
There is no adequate evidence that exposure to aluminium in antiperspirants leads to progressive dementia and Alzheimer's disease.
Heather M. Snyder, the senior associate director of medical and scientific relations for the Alzheimer's Association, has stated, "There was a lot of research that looked at the link between Alzheimer's and aluminium, and there hasn't been any definitive evidence to suggest there is a link".
The International Journal of Fertility and Women's Medicine found no evidence that certain chemicals used in underarm cosmetics increase the risk of breast cancer.
Ted S. Gansler, the director of medical content for the American Cancer Society, stated "There is no convincing evidence that antiperspirant or deodorant use increases cancer risk".
However, there is continued concern over the use of aluminium chlorohydrate in cosmetics as the risk of toxic build up over time has not been ruled out.
The Scientific Committee on Consumer Safety (SCCS) is currently designing a study to analyse the build up of aluminium chlorohydrate via dermal penetration to assess the risk of toxic build up.
When activated aluminum chlorohydrate is used in aerosol sprays or powdered formulations, there is a potential risk of inhalation, particularly if used in confined or poorly ventilated spaces.
Chronic or repeated inhalation, especially in occupational settings where large quantities are handled, has raised concerns about possible accumulation of aluminum in lung tissue, though evidence of long-term damage from cosmetic exposure is limited.
Nonetheless, health authorities recommend avoiding inhalation of aerosolized aluminum compounds as a precautionary measure.
