CAS:7784-18-1 is generally identified in commercial chemical references as an aluminum chloride hydrate. In practical B2B purchasing, I recommend confirming the exact hydrate state, assay, appearance, impurities, packaging, and regulatory classification against the supplier’s current specification and Safety Data Sheet (SDS). The CAS number helps identify the substance, but it should not replace a complete technical review before production use.
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Aluminum chloride hydrates are water-soluble inorganic aluminum salts used where an aluminum source and chloride-based chemistry are required. Their behavior is influenced by water content, concentration, temperature, and storage conditions. At Azeal Materials, we support buyers by clarifying product identity, quality requirements, documentation, packaging, and export considerations before quotation.
CAS:7784-18-1 refers to an aluminum chloride hydrate entry used for chemical identification and procurement. Aluminum chloride hydrates contain aluminum, chloride, and water of crystallization or associated moisture, so their commercial properties can differ from those of anhydrous aluminum chloride. I advise buyers to avoid assuming that all aluminum chloride products have the same formula, molecular weight, or handling profile.
In many applications, the product is supplied as a solid powder, crystalline material, or granular form. Its appearance and flowability may vary with hydration level, manufacturing process, storage history, and packaging. A professional specification should therefore state the intended chemical description rather than relying on the CAS number alone.
Aluminum chloride hydrate is an inorganic salt used as a source of aluminum ions and chloride ions. When introduced into water, it forms an aqueous solution and may contribute to acidity through aluminum hydrolysis. The exact solution behavior depends on concentration, temperature, water quality, and the presence of other dissolved substances.
For this reason, I treat the following information as a sourcing framework rather than a substitute for product-specific documentation: buyers should verify the formula notation, molecular weight, assay basis, hydration state, and applicable transport classification with the supplier before placing an order.
The main technical function of CAS:7784-18-1 is to provide a soluble aluminum component for downstream chemical processing. In water treatment and related formulations, aluminum salts may participate in hydrolysis and help form aluminum-containing hydroxide species that interact with suspended or dissolved impurities. Performance depends strongly on dosage, water chemistry, mixing conditions, and the final process design.
The material is typically moisture-sensitive or moisture-responsive because it contains hydrated aluminum chloride and may change physically when exposed to humid air. It can also be corrosive or irritating in concentrated form, particularly when contact occurs with skin, eyes, or incompatible materials. These hazards must be evaluated from the current SDS rather than inferred only from product name.
| Evaluation item | Why it matters |
|---|---|
| Aluminum chloride assay | Indicates the active chemical content and supports dosage calculations. |
| Hydration state or moisture | Influences molecular weight, concentration calculations, stability, and physical handling. |
| Water solubility | Determines suitability for aqueous formulations and process preparation. |
| Insoluble matter | Can affect filtration, dosing equipment, and final product cleanliness. |
| Iron and other trace metals | May be important for color, process compatibility, and application-specific purity. |
For calculation purposes, one important distinction is whether the assay is reported on an as-supplied basis or an anhydrous basis. For example, a specification may report purity as a percentage by mass, while a process engineer may need the available aluminum content or solution concentration in grams per liter. I recommend agreeing on the calculation basis before comparing quotations from different suppliers.
Aluminum salts are used in some coagulation and clarification processes because hydrolysis products can help destabilize suspended particles. Actual treatment performance depends on raw-water alkalinity, pH, turbidity, organic matter, competing ions, and mixing conditions. A jar test or controlled plant trial is appropriate when the material is being introduced into a new treatment system.
CAS:7784-18-1 may be selected as an aluminum and chloride source in laboratory, industrial, or formulation processes. Its value is determined by the required aluminum balance, solution preparation method, impurity limits, and compatibility with other raw materials. Buyers should confirm whether the application requires technical grade, higher-purity material, or a customized impurity profile.
Research and development teams may use aluminum chloride hydrate in preparation, screening, or reaction work where a defined aluminum salt is required. Small-scale work still requires accurate weighing and appropriate ventilation because laboratory quantity does not eliminate chemical exposure risk. A supplier should provide lot-specific documentation when reproducibility is important.
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The most important comparison is between aluminum chloride hydrate and anhydrous aluminum chloride. These are not interchangeable on a one-to-one mass basis because their water content and molecular weights differ, and anhydrous aluminum chloride generally has a different moisture response and handling profile. A process change should be reviewed by a qualified chemist or process engineer before substitution.
Buyers may also compare different commercial grades, such as standard technical material, low-iron material, or a customized grade with tighter limits for insoluble matter or trace metals. The correct choice depends on the end use, not simply on the highest stated purity. Over-specifying a grade can increase cost without improving the process, while under-specifying can create quality or compliance problems.
Before purchasing, I recommend requesting a product specification that defines the chemical name, CAS number, appearance, assay, hydration or moisture basis, solubility expectations, and impurity limits. Where relevant, the specification should also address pH of a defined solution, insoluble matter, iron, heavy metals, and packaging requirements. A COA should identify the production lot and show the actual test results for that lot.
Packaging should be selected according to shipment distance, humidity exposure, warehouse conditions, and consumption rate. Common industrial packaging may include lined bags, fiber drums, or other moisture-protective formats, but the appropriate option depends on the supplier’s validated packing method and the buyer’s local requirements. For export orders, the buyer should also confirm labeling, palletization, documentation, and transport classification.
I recommend treating CAS:7784-18-1 as a hazardous industrial chemical until the current SDS confirms the applicable classification. Personnel should avoid breathing dust and prevent contact with eyes and skin. Suitable controls may include local exhaust ventilation, chemical-resistant gloves, protective clothing, and eye or face protection selected according to the SDS and workplace risk assessment.
The product should be stored in a tightly closed, compatible container in a cool, dry, well-ventilated area. Moisture exposure can alter the material’s physical condition and may affect weighing, flow, or solution preparation. Storage areas should also be arranged to prevent contact with incompatible substances, and spills should be managed according to the SDS and site emergency procedures.
When preparing a solution, operators should follow an approved written procedure and use appropriate mixing equipment. Adding solids to water can generate heat or localized high concentrations, depending on the quantity and process conditions. I do not recommend selecting addition rates, dilution sequences, or emergency measures from a general article; those details should be confirmed through process engineering review and the product SDS.
A reliable supplier should be able to explain exactly what is being offered under CAS:7784-18-1. I suggest checking whether the supplier can provide an SDS, COA, technical specification, product samples where appropriate, and traceable lot information. The supplier should also answer practical questions about production capacity, standard packaging, MOQ, lead time, export documents, and quality-control procedures.
At Azeal Materials, we help industrial buyers evaluate aluminum chloride hydrate according to their actual application and purchasing requirements. We can discuss target assay, hydration description, impurity limits, packaging, sample needs, documentation, and shipment planning before an order is finalized. Where a customer has a specific process, I recommend sharing the intended use, required quantity, destination, and preferred specification so that our team can prepare a more relevant quotation.
CAS:7784-18-1 is generally used to identify an aluminum chloride hydrate, a soluble inorganic aluminum salt with potential applications in water treatment, chemical processing, formulation, and research. Its suitability depends on the exact hydration state, assay, impurity profile, process conditions, and safety controls. The safest procurement decision is based on the supplier’s current SDS, specification, COA, and a clear comparison with the requirements of your process.
As a next step, define your required grade, annual or trial quantity, packaging format, destination, and critical test items. Then request product documentation and confirm whether the quoted material is reported on an as-supplied or anhydrous basis. Contact Azeal Materials with these details for technical clarification and a B2B quotation tailored to your sourcing needs.
Contact us to discuss your requirements of CAS:7784-18-1. Our experienced sales team can help you identify the options that best suit your needs.