Liquid Aluminum Dihydrogen Phosphate Aluminum Phosphate Monobasic CAS 13530-50-2

Tree Chem supplies Liquid Aluminum Dihydrogen Phosphate (CAS 13530-50-2) for customers seeking to purchase a stable aluminum phosphate solution suitable for high-temperature and inorganic binder systems. The product appears as a colorless, transparent liquid with controlled density and oxide composition, ensuring reliable performance in industrial processing.

This aluminum dihydrogen phosphate solution is commonly applied in refractory materials, ceramic bonding, fire-resistant coatings, and inorganic adhesives, where controlled phosphate chemistry and low impurity levels are essential. For specifications, samples, or commercial details, please contact info@cntreechem.com.

Specification

Basic Information

Technical Specification

Applications

Refractory Castables and Monolithic Refractories

• Liquid aluminum dihydrogen phosphate is widely used as an inorganic phosphate binder in refractory castables and monolithic refractories, where it builds chemical bonding networks that maintain structural integrity at high temperature. In kiln, furnace, and ladle service, this binder system is valued for strong green strength, fast setting under controlled curing, and the ability to deliver stable performance under thermal shock and abrasive wear.
• In phosphate-bonded castables, liquid aluminum dihydrogen phosphate helps form a dense matrix around alumina- or bauxite-based aggregates, improving high-temperature strength retention and reducing cracking during heat-up and cool-down cycles. In steel and cement furnace environments, it is also used to support corrosion resistance and long-term lining stability, especially when paired with high-alumina powders and properly graded aggregates to achieve good packing density.

Refractory Coatings, Spraying Materials, Mortars, and Gunning Mixes

• Liquid aluminum dihydrogen phosphate is applied in refractory coatings and sprayable repair materials as a binder that provides strong adhesion to hot-face surfaces and forms durable protective layers after staged curing. These coatings are used to improve surface wear resistance, reduce dusting, and extend the service life of refractory linings exposed to flame impingement, slag, and mechanical abrasion.
• In refractory mortars and gunning materials, liquid aluminum dihydrogen phosphate promotes chemical bonding with magnesia and alumina components, improving adhesion during installation and maintaining cohesive strength after firing. This makes it suitable for patch repair, joint filling, and maintenance spraying in high-temperature units where fast turnaround and stable bonding are required.

Phosphate-Bonded Refractory Bricks and Shaped Refractories

• For phosphate-bonded refractory bricks, liquid aluminum dihydrogen phosphate acts as a binder that supports high-density shaping and stable strength development after low-temperature heat treatment. These bricks are commonly based on high-alumina bauxite clinker and are used in zones requiring a balance of load-bearing capacity, thermal shock resistance, and refractoriness.
• In shaped refractories, liquid aluminum dihydrogen phosphate helps reduce reliance on organic binders and supports improved high-temperature bonding without excessive volatile release. With proper raw material selection and pressing conditions, phosphate-bonded bricks can show strong cold crushing strength and stable performance under rapid temperature fluctuations.

High-Temperature Resistant Coatings

• Liquid aluminum dihydrogen phosphate serves as a primary film-forming binder in high-temperature resistant coatings, including hybrid systems that combine phosphate networks with silica sol and compatible organic components. These coatings are applied to metal substrates and heat-exposed parts where long-duration oxidation resistance and coating integrity are required at elevated temperatures.
• In high-temperature oxidation environments, phosphate-based coatings can produce compact, adherent layers that slow oxidation and reduce surface degradation. The binder’s ability to form inorganic networks supports durability under prolonged heat exposure, making it suitable for industrial furnace hardware, thermal shields, and heat-resistant structural surfaces.

Anti-Corrosion and Chemical-Resistant Coatings

• Liquid aluminum dihydrogen phosphate is used as a binder in anti-corrosion coating systems designed for aggressive environments, where strong adhesion and chemical stability are critical. In aluminum-containing phosphate coating systems, the binder works with functional fillers and passivation components to deliver long salt-spray resistance and reduced corrosion current behavior in performance testing frameworks.
• In waterborne anti-corrosion coatings, liquid aluminum dihydrogen phosphate supports environmentally friendlier application routes while maintaining strong protective performance. These systems are applied to steel structures, pipelines, equipment housings, and industrial infrastructure that requires corrosion protection combined with heat tolerance.

Ceramic and Electrical Insulation Coatings

• Liquid aluminum dihydrogen phosphate is used in ceramic-like coatings that form hard, chemically resistant surfaces with good scratch resistance, flame retardancy, weather resistance, and cleanability. These coatings can be cured at ambient or elevated temperature, enabling flexible processing across industrial maintenance and factory coating lines.
• In electrical insulation coatings, liquid aluminum dihydrogen phosphate is used to bond insulating powders such as hexagonal boron nitride (h-BN) and to help build stable, adherent insulating layers after heat treatment. This supports applications where electrical resistivity and heat stability are required simultaneously, such as high-temperature insulation, electrical barriers, and specialized protective layers.

Heat-Resistant Insulation and Thermal Protection Coatings

• Liquid aluminum dihydrogen phosphate is applied in heat-resistant insulation coatings where thermal protection and char-forming behavior under heat exposure are important. In high-temperature service, the phosphate chemistry supports the creation of protective inorganic structures that improve insulation effectiveness and reduce heat transfer to the substrate.
• When formulated with ceramic fibers and refractory powders such as zirconia and silica, these coatings can be positioned for extreme-temperature thermal barrier roles. This is relevant for thermal protection parts, high-temperature chambers, and applications demanding both insulation and structural stability under rapid temperature changes.

High-Temperature Resistant Adhesives and Structural Bonding

• Liquid aluminum dihydrogen phosphate is a core binder in high-temperature resistant adhesives that bond ceramics, metals, and glass in harsh environments. These adhesive systems are used where conventional organic adhesives fail, offering strong bonding after controlled curing and additional strength development after high-temperature exposure.
• In ceramic-to-metal bonding, liquid aluminum dihydrogen phosphate supports reactive bonding mechanisms that create durable joints across dissimilar materials. This makes it relevant for refractory assembly, heat-resistant fixtures, insulation component bonding, and industrial repairs where both adhesion and thermal endurance are required.

Ceramic Glazes, Ceramic Bodies, and Advanced Ceramics

• Liquid aluminum dihydrogen phosphate is used in ceramic glazes and surface treatments to improve adhesion, chemical resistance, and high-temperature stability after firing. It helps create smooth, durable surfaces and supports consistent glaze formation in demanding firing cycles.
• In ceramic bodies and advanced ceramic materials, liquid aluminum dihydrogen phosphate contributes to bonding and densification behavior, improving green strength and supporting sintering performance. It is also used in ceramic composites, where it helps bind fillers and fibers to form high-temperature stable structures for functional ceramics and high-performance thermal components.

Construction Materials and High-Temperature Cement Systems

• Liquid aluminum dihydrogen phosphate is used in specialized construction materials as a setting and strength-enhancing component in phosphate cement systems that are designed for high-temperature and chemically aggressive environments. These systems are relevant in industrial furnace construction, high-temperature repair mortars, and applications requiring rapid development of strength with durable heat performance.
• In high-temperature well and industrial cement concepts, phosphate-based cement structures can be engineered for stability under harsh service conditions. Liquid aluminum dihydrogen phosphate contributes to the binder chemistry that supports long-term integrity where conventional cement systems may degrade.

Water Treatment and Corrosion Inhibition Programs

• Liquid aluminum dihydrogen phosphate is used in water treatment as a corrosion inhibition and scale-management component, where it supports protective film formation on metal surfaces. In circulating and cooling water systems, it can be integrated into multi-component treatment packages to reduce corrosion and deposit formation, helping maintain heat-transfer efficiency and extend equipment life.
• These programs emphasize stable dosing, compatibility with other inhibitors and dispersants, and control of pH and operating conditions. The binder-like film-forming behavior and chemical stability make it suitable for industrial water systems where corrosion risk and scaling tendency must be controlled over time.

Catalyst Support and Chemical Processing Utility

• Liquid aluminum dihydrogen phosphate is used to prepare catalyst support materials where thermal stability and chemical resistance are required. By combining with silica and suitable binders or activators, it can form robust support structures for high-temperature catalytic processes.
• This application benefits from the compound’s ability to form inorganic networks and maintain stability under heat and chemical exposure. It is therefore relevant in process environments such as petroleum refining, environmental catalysts, and other high-temperature chemical operations.

Electronics, Electrical Applications, and Specialty Thermal Barrier Uses

• Liquid aluminum dihydrogen phosphate is used in electronic and electrical applications where insulation, heat resistance, and stable inorganic bonding are required. In circuit-board and electronic packaging coatings, it supports high-temperature stability and electrical insulation performance, helping protect sensitive assemblies.
• In aerospace and specialty thermal barrier roles, formulations combining liquid aluminum dihydrogen phosphate with zirconia and ceramic fibers can be positioned for lightweight, high-temperature protective layers. These systems focus on maintaining barrier integrity under extreme heat, thermal cycling, and demanding service conditions.

Storage & Handling

• Store in sealed containers in a cool, well-ventilated area
• Avoid prolonged exposure to heat or direct sunlight
• Prevent contact with strong alkalis and reactive metals
• Use corrosion-resistant equipment during handling
• Follow standard chemical safety and handling procedures

Usage Notice

• Dilution and formulation ratios should be validated in pilot trials
• Avoid contamination with impurities that may affect curing performance
• Rinse equipment with water immediately after use
• Not intended for direct consumer use
• A phosphate-bonded refractory castable can be prepared with refractory aggregate about 65–74%, refractory powder about 24–35%, liquid aluminum dihydrogen phosphate about 8–12% (by total mix), setting accelerator about 3–5%, and water about 6–10%.
• A refractory coating or spraying mix can be formulated with refractory aggregate about 60–70%, refractory powder about 25–30%, liquid aluminum dihydrogen phosphate about 8–12%, setting agent about 1–3%, and water about 5–8%, followed by staged curing to build bonding strength.
• A refractory gunning material can use metallurgical magnesia particles about 30%, high-alumina particles about 25%, high-alumina fine powder about 15%, phosphate solution about 8%, and water about 12–15% to form a chemically bonded repair material.
• A phenolic resin/phosphate hybrid high-temperature coating can be formulated with liquid aluminum dihydrogen phosphate about 20–30%, silica sol about 15–25%, phenolic resin about 10–20%, ethanol solvent about 30–40%, and additives about 2–5%.
• A waterborne aluminum-containing phosphate anti-corrosion coating can be prepared using a 30% aluminum dihydrogen phosphate aqueous binder at about 1000–1200 parts by weight, distilled water about 1000–1500 parts, curing agent about 16–20 parts, coating additives about 20–60 parts, passivator about 24–40 parts, and functional filler about 45–55 parts.
• A ceramic-like inorganic coating can be built as a two-component system where Component A contains aluminum hydroxide about 0.5–10% with phosphoric acid about 15–60% and water to 100%, while Component B contains high alumina cement about 3–30% with quartz powder about 50–80%, fly ash about 2–10%, anhydrite about 0.5–3%, and kaolin about 5–15%.
• An electrical insulation coating can be formulated with h-BN powder about 40–60%, liquid aluminum dihydrogen phosphate solution about 30–40%, and solvent about 10–20% to form an insulating layer after appropriate heat treatment.
• A high-temperature insulation coating can be formulated with aluminum dihydrogen phosphate about 30–40%, zirconia powder about 25–35%, silica powder about 15–25%, ceramic fibers about 5–10%, organic binder about 5–10%, and additives about 2–5% to build a thermal protection layer.
• A high-temperature resistant adhesive can be formulated with liquid aluminum dihydrogen phosphate about 40–50%, aluminum oxide powder about 25–35%, silica powder about 15–25%, ceramic fibers about 5–10%, and accelerator about 2–5% to achieve strong bonding after controlled curing.
• A ceramic-to-metal adhesive can be designed as a two-part system where mono aluminum phosphate solution is combined with a magnesium oxide/hydroxide component containing hydroxycarboxylic acid at a Component A to Component B ratio of about 1:1 to 2:1 to form aluminum–magnesium phosphate bonding.
• A room-temperature curing adhesive can be formulated with liquid aluminum dihydrogen phosphate about 35–45%, ammonia/amine curing agent about 5–10%, filler about 40–50%, and additives about 2–5% to enable ambient hardening while retaining heat resistance.
• A ceramic glaze can be formulated with aluminum dihydrogen phosphate solution about 15–25%, silica about 40–50%, alumina about 15–25%, borax about 5–10%, potassium feldspar about 5–10%, and water as balance before firing at high temperature.
• A high-alumina ceramic body can be formulated with alumina powder about 70–80%, liquid aluminum dihydrogen phosphate solution about 10–15%, clay about 5–10%, and water about 5–10% to improve green strength and sintering behavior.
• A cooling-tower water treatment approach can dose aluminum dihydrogen phosphate at about 5–10 mg/L together with corrosion inhibitor about 2–5 mg/L and scale dispersant about 1–3 mg/L while maintaining system pH around 7.0–8.5.
• A catalyst support composition can be formulated with aluminum dihydrogen phosphate about 40–50%, silica about 30–40%, binder about 5–10%, and activating agent about 2–5% to create a thermally stable support structure.
• A high-temperature cement concept can combine aluminum oxide/aluminum phosphate cement about 60–70% with calcium phosphate cement about 20–30% and wollastonite phosphate cement about 10–20% to achieve heat-resistant cement performance.
• A PCB/electrical coating can be formulated with aluminum dihydrogen phosphate about 25–35%, silica sol about 15–25%, binder about 10–15%, and solvent about 30–40% to provide insulation and heat resistance on electronic substrates.
• An aerospace thermal barrier coating can be formulated with aluminum dihydrogen phosphate about 35–45%, zirconia about 25–35%, ceramic fibers about 15–25%, and special additives about 5–10% to deliver high-temperature insulation with lightweight protection.

Packaging

• Polyethylene plastic drums: 30 kg / drum
• Polyethylene plastic drums: 300 kg / drum
• 1000 L IBC containers (≈ 1400 kg net)