Aluminium hydroxide
50 Inquiries
21645-51-2
Industrial Grade
98%
SHANGHAI
25kg/Plastic Bag
2019-10-31
aluminium hydroxide,Magnesium hydroxide
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Product Description
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Seller Information
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Inquiry History
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DescriptionECHEMI Editorial ReferenceAluminum hydroxide, white solid, is a typical amphoteric hydroxide that is insoluble in water but soluble in acid or alkali. It can be transformed into alumina after heated in the air for dehydration, which is important for alumina production. Aluminum hydroxide is a widely used chemical product, and it is mainly used as plastic and polymer fillers, blanket flame retardant and binder, epoxy resin filler, toothpaste fillers, glass ingredients as well as paper color fillers and coatings. It can b
Aluminum hydroxide, insoluble in water, soluble in dilute mineral acids and alkali hydroxides (4 % suspension in water), white, amorphous powder. For other relevant properties and production, see→Aluminum Oxide, Chap. 1.1. Available as Al(OH)3·nH2O (algedrate) and algedrate hexitol complex.
Aluminum hydroxide adjuvant is a white hydrogel that sediments slowly and forms a clear supernatant.
aluminium hydroxide: A white crystalline compound, Al(OH)3; r.d. 2.42-2.52. The compound occurs naturally as the mineral gibbsite (monoclinic). In the laboratory it can be prepared by precipitation from solutions of aluminium salts. Such solutions contain the hexaquoaluminium( III) ion with six water molecules coordinated, [Al(H2O)6]3+. In neutral solution this ionizes:[Al(H2O)6]3+→H++ [Al(H2O)5OH]2+The presence of a weak base such as S2-or CO32-(by bubbling hydrogen sulphide or carbon dioxide through the solution) causes further ionization with precipitation of aluminium hydroxide[Al(H2O)6]3+(aq)→ Al(H2O)3(OH)3(s)+ 3H+(aq)The substance contains coordinated water molecules and is more correctly termed hydrated aluminium hydroxide. In addition, the precipitate has water molecules trapped in it and has a characteristic gelatinous form. The substance is amphoteric. In strong bases the aluminate ion is produced by loss of a further proton:Al(H2O)3(OH)3(s)+ OH-(aq)→[Al(H2O)2(OH)4]-(aq)+ H2O(l)On heating, the hydroxide transforms to a mixed oxide hydroxide, AlO.OH (rhombic; r.d. 3.01). This substance occurs naturally as diaspore and boehmite. Above 450℃ it transforms to γ-alumina.In practice various substances can be produced that are mixed crystalline forms of Al(OH)3, AlO.OH, and aluminium oxide (Al2O3) with water molecules. These are known as hydrated alumina. Heating the hydrated hydroxide causes loss of water, and produces various activated aluminas, which differ in porosity, number of remaining -OH groups, and particle size. These are used as catalysts (particularly for organic dehydration reactions), as catalyst supports, and in chromatography. Gelatinous freshly precipitated aluminium hydroxide was formerly widely used as a mordant for dyeing and calico printing because of its ability to form insoluble coloured lakes with vegetable dyes.
Poison by intraperitoneal route. Human systemic effects by ingestion: fever, osteomalacia, and gastrointestinal effects. When coprecipitated with bismuth hydroxide and reduced by H2, it is violently flammable in air. Incompatible with chlorinated rubber.Basic Info-
Product Name:
Aluminum hydroxide
Other Name:alcoac30bf;alcoac330;alcoac333;alugel;alumigel;aluminahydrated;aluminicacid;Aluminiumhydrate
CAS No.:21645-51-2
Molecular Formula:AlH3O3
InChIKeys:WNROFYMDJYEPJX-UHFFFAOYSA-K
Molecular Weight:78
EC Number:244-492-7
TSCA:TSCA listed
Color/Form:White
HScode:28183000
Categories:
Characteristics-
PSA:
60.69000
XLogP3:-0.53040
Appearance:White colloidal suspension
Density:2.42 g/cm3 at 20 °C
Melting Point:300℃
Boiling Point:2980℃[at 101 325 Pa]
Refractive Index:Average refractive index: 1.57-1.59
Water Solubility:insoluble
Storage Conditions:Store at +5°C to +30°C.
Vapor Pressure:<0.1 hPa (20 °C)
Toxicity:The toxicity of aluminum mainly includes two aspects: the first is the mechanical stimulation to lung tissue; the second is to make protein precipitation and form fiber-like irreversible protein compounds with non-inflammatory performance. The inhalation of aluminum dust can damage the lungs to cause bauxite lung, the chronic symptoms of which have weight loss, easy fatigue, difficult breathing and cough. Aluminum hydroxide is more likely to cause alveolar epithelial hyperplasia than aluminum.The maximum allowable concentration of aluminum hydroxide is 6 mg/m3.Small trauma can be first treated with alcohol and gasoline, and then covered with non-toxic dressing; large wound can be excised and sutured, and then treated with sulfonamides and penicillin therapy. People working in dusty places should wear gas masks, protective glasses and dust protective overalls to protect the skin and eyes. In addition, every year people should attend a regular physical examination.
Flammability characteristics:Non flammable
Odor:Odorless
PH:8-9 (100g/l, H2O, 20℃)(slurry)
Critical Temperature & Pressure:Store at +5°C to +30°C.
Hazard IdentificationClassification of the substance or mixture
Not classified.
GHS label elements, including precautionary statements
Pictogram(s) No symbol. Signal word No signal word
Hazard statement(s) none
Precautionary statement(s) Prevention none
Response none
Storage none
Disposal none
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.
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Seller Information
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Business Type:
Manufactory
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Main Products:
aluminium hydroxide,Magnesium hydroxide
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Location:
No.36 Xianghe Road, Feidong Economic Development Zone, Hefei
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Payment Terms:
D/P,L/C
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Average lead Time:
60
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Total Annual Revenue:
Less than $1 million
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Year of Establishment:
2003
Hefei Zhongke Flame Retardant New Material Co., Ltd. is a high-tech industrial enterprise integrating science, industry and trade. It has long been engaged in the research and development, production, sales, technical service and consulting of new materials and powder ultrafine surface modification .
The company is located in Hefei, the capital of Anhui Province in central China. It was established in 2003. The headquarters covers an area of 30 acres. The plant is scientifically planned and rationally arranged. The administrative building, R&D center, production workshop and material warehouse are partitioned. The company currently has three raw materials production The base has three overseas offices in Guangzhou, Shenzhen and Kunshan; there are more than 100 employees and all management personnel have bachelor degree or above. The company attaches great importance to the construction of the talent team, firmly implements the enterprise's talent development strategy, and through continuous improvement and accumulation, the company has established a high-quality, positive style and strong ability of the workforce.
After years of research, development, and industrialized large-scale production of environmentally friendly filled flame retardants (this product was certified by the Ministry of Coal Industry Science and Technology Education Department in 1994), new environmentally friendly halogen-free flame retardants, composite flame retardants , Flame retardant smoke suppressants, non-metallic minerals and other products, complete product specifications, strong technical force, advanced process equipment, reliable product quality, since being put on the market, it has been well received by the majority of users.
The company has gathered a number of prestigious experts and professors at home and abroad and professional and technical personnel with rich practical experience, and has established extensive domestic and international social connections. The company currently has an automatic production line with an annual output of 100,000 tons of environmentally friendly flame retardants. All products comply with the requirements of the ROHS directive and have been exported to home and abroad. The company is now one of the leading companies in the industry, as the main drafting unit, presided over the formulation of GB/T33385-2016 "flame retardant chemical brucite" national standards of the People's Republic of China and HG/T4531-2013 "magnesium hydroxide for flame retardant" 》And HG/T4530-2013 “Aluminum Hydroxide Flame Retardant”, two chemical industry standards of the People’s Republic of China. The company now has 5 national invention patents and 7 utility model patents. In the future, the company will further strengthen technology research and development, and build the technology center into a high-level and high-level technology center, making it not only the core driving force of the company's development, but also a technological innovation base in the field of flame retardants nationwide and even globally. To lay a solid foundation for building into a domestic large-scale and strong technology flame retardant supplier.
The company is also an executive director of the China Flame Retardant Society.
The company passed the ISO9001-2015 quality management system certification.
The company's products have passed SGS, RHOS, REACH certification. -
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Inquiry History50 Inquiries
Country Product Purchase Quantity Date Posted 
Bangladesh
High Quality Factory Price Aluminum Hydroxide CAS 21645-51-2
56 MT Sep 24, 2023 
Pakistan
Aluminum Hydroxide
200.00 MT Jun 3, 2024 
Germany
Aluminium Hydroxide
1200 KG Nov 17, 2025 
United States
Aluminium hydroxide
18000 KG May 17, 2025
United States
Aluminum Hydroxide
500 TON Jun 19, 2024 
India
Aluminum Hydroxide
50 KG Jul 3, 2025
Pakistan
Aluminium Hydroxide
1.00 20' Fcl Jul 10, 2026
India
ALUMINIUM HYDROXIDE
20 MT Jun 23, 2026
Bangladesh
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50 MT Jun 4, 2026
India
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700.00 KG Feb 25, 2026
Pakistan
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3000 KG Jan 21, 2026 
Vietnam
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1000 MT Feb 27, 2025
Pakistan
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Bangladesh
Aluminium Hydroxide
1000 KG Nov 20, 2024
Pakistan
Aluminum Hydroxide
1.00 MT Jul 22, 2024
Pakistan
Almunium Hydroxide
2.00 20' Fcl Jun 3, 2024 
China
Aluminum hydroxide
336 MT Apr 18, 2024
Pakistan
Dried Aluminium Hydroxide
50 MT Feb 14, 2024 
United Kingdom
Aluminum hydroxide
1 MT Jan 20, 2024 
Malaysia
Aluminium Hydrate
1 20' Fcl Oct 30, 2023 Post an enquiry for this product
