Fine Precipitated Aluminium Hydroxide

Shandong Taixing New Materials Co., Ltd. is a professional manufacturer of fine precipitated aluminum hydroxide.

Fine precipitated aluminum hydroxide (chemical formula Al (OH)₃) is a white powder obtained by controllable reaction of aluminum salt solution and alkaline precipitant, with an average particle size of 100-500nm and a purity of ≥ 99.9% (total impurities<100ppm). Its core advantages stem from:

Nanoscale particle size: Using uniform precipitation method, the particles are spherical or quasi spherical in shape, with a concentrated particle size distribution (D50=200nm, D90=450nm), a specific surface area of 80-120m ²/g, and a reaction activity increased by more than 3 times.

Ultra high purity: Through multi-stage impurity removal process, Fe ₂ O ∝ ≤ 5ppm, Na ₂ O ≤ 10ppm, SiO ₂ ≤ 8ppm meet the strict requirements of impurity sensitive fields such as semiconductors and pharmaceuticals.

Excellent dispersibility: The surface is rich in hydroxyl groups (- OH) and can be stably dispersed in aqueous systems (zeta potential ≥+30mV), forming a uniform slurry without the need for additional dispersants.

Fine Precipitated Aluminium Hydroxide.( Al(OH)3, CAS No. 21645-51-2 ) is one type ATH with ultrafine particle size, regular crystal structure, high-purity, high whiteness, low surface activity and small specific surface area, Fine Precipitated Aluminium Hydroxide. can be widely used in various of processing technology.

Physical and Chemical Properties

Key Advantage:

Low Na2O%: (Soluble Na2O%≤0.015%)

Low Electrical conductivity：≤30μs/cm

Low Residue content(on sieve)：≤0.01% (400Mesh)

Less black spots and impurities：≤25/100gram

Application:Recommended to be used in wires and cables, copper clad plates(CCL), composite insulators, heat insulation material, etc.

1. Catalysts and Chemicals

Petrochemical industry:

As a hydrogenation catalyst carrier, loaded with active components such as nickel (Ni) and molybdenum (Mo), used in crude oil desulfurization process, the sulfur removal rate is ≥ 99%, and the catalyst life is extended to more than 18 months.

Environmental catalysis:

As a dispersed matrix in VOCs treatment catalysts, with a specific surface area retention rate of ≥ 90% (aged at 500 ℃ for 100 hours), it is suitable for regenerative catalytic combustion (RCO) equipment.

2. Pharmaceutical and Bioengineering

Antacid drugs:

As the main ingredient, it is made into chewable tablets with a particle size of ≤ 500nm to ensure rapid absorption by the stomach and intestines. It can neutralize stomach acid for 4-6 hours and meets USP NF37 standards.

Biological carrier:

Surface hydroxyl groups can be coupled to antibody proteins, which can increase antigen adsorption efficiency by 30% when used as vaccine adjuvants. It is suitable for human vaccines and animal biological products.

3. Electronics and Advanced Ceramics

Semiconductor packaging:

When added to epoxy resin as a thermal conductive filler, the thermal conductivity coefficient is ≥ 3.0W/(m · K) and the coefficient of thermal expansion (CTE) is ≤ 8ppm/℃ when the filling amount reaches 60vol%, which is suitable for 5G chip flip chip packaging process.

Ceramic substrate:

Used for Al₂O₃ ceramic casting, the green density is increased to 2.2g/cm ³, the bending strength after sintering is ≥ 300MPa, and the dielectric loss (tan δ) is ≤ 0.001 (1MHz), suitable for multi-layer ceramic capacitors (MLCC).

Packaging:Net weight 25kg/bag, Compound paper-plastic bag

Storage and Attention: Keep in dry, room temperature and moisture proof condition, preventing the heating

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