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Lower Na2o Pseudo Boehmite Cas 1318-23-6 Pseudo Boehmite
CAS No.:1318-23-6
Purity:99.99%
Place of Origin:Henan China
MF:AlHO2
Appearance:White Powder
Certification:MSDS,COA,TDS
Free Samples
Purity:99.99%
Place of Origin:Henan China
MF:AlHO2
Appearance:White Powder
Certification:MSDS,COA,TDS
Free Samples
Boehmite, also known as diaspore or boehmite monohydrate, with the chemical formula γ-AlOOH (or γ-Al₂O₃·H₂O), is an important aluminum oxide hydrate material. It was first discovered in 1925 by the German chemist Johann Böhm, and is named after him. In nature, boehmite mainly exists as an ore in bauxite, but it can also be synthesized artificially. As a thermodynamically metastable material, boehmite readily dehydrates to alumina at high temperatures, making it an important precursor for the preparation of γ-alumina.
Boehmite possesses a unique layered crystal structure, high specific surface area, good colloidal solubility and thermal stability, and exhibits low hardness and low magnetic impurity content. These properties make it widely applicable in fields such as lithium-ion battery separator coating, catalyst support, inorganic flame retardants, paper fillers, and ceramic materials. Especially against the backdrop of the rapid development of the new energy vehicle industry, boehmite, as a key coating material for lithium battery separators, has seen a rapid increase in market demand due to its ability to significantly improve battery safety and cycle performance.
Product picture:
Function
This is currently the most important and fastest-growing application area for boehmite. Coating lithium-ion battery cell separators with boehmite significantly improves the separator’s heat resistance (preventing thermal shrinkage) and puncture resistance, thereby enhancing battery safety. Simultaneously, due to its low hardness and low specific gravity, the coated separator is lighter and does not excessively abrade coating equipment. Furthermore, boehmite coatings help improve battery rate performance and cycle life, and reduce self-discharge.
Boehmite possesses a high specific surface area, large porosity, and abundant hydroxyl groups on its surface, making it an ideal catalyst support. It can support various noble metal or metal oxide catalysts and is widely used in petrochemicals, automotive exhaust purification, and other fields. Its stable orthorhombic crystal structure ensures the stability of the support under high-temperature reaction conditions.
Boehmite decomposes endothermically above 400℃, releasing water vapor, thus playing a role in flame retardancy and smoke suppression. Due to its non-toxicity, environmental friendliness, and high filler content, boehmite is often used as an inorganic flame retardant in polymer materials, replacing traditional halogenated flame retardants.
Utilizing its high whiteness and good dispersibility, boehmite can be used as a filler in high-grade paper, improving its smoothness and opacity. As a precursor for alumina ceramics, it is used to prepare high-performance ceramic powders. Furthermore, as a functional filler added to polymers, it can improve the mechanical properties, heat resistance, and barrier properties of the materials.
Technical Specifications:
|
item
|
value
|
|
Pore volume ml/g
|
≥0.3
|
|
BET Surface ㎡/g
|
≥250
|
|
SiO2 %
|
≤0.1
|
|
Fe2O3 %
|
≤0.02
|
|
Na2O %
|
≤0.1
|
|
3H2O %
|
≤3
|
|
Dry basis %
|
≥65
|
|
Peptization %
|
≥97
|
Package:
1kg / 25kg Bag
Palletized Shipping
Lead Time: 1-7 Days
Shipping Methods: Sea/Air/Express delivery
Learn More About Boehmite
Want to learn more about the structure, properties, and applications of boehmite? Read our comprehensive Boehmite FAQ Guide .
