TIANFU-CHEM - Aluminum oxide CAS NO.1344-28-1

FOB Price: USD: 1,000.00-1,000.00 /Kilogram Get Latest Price
Min.Order: 1 Gram
Payment Terms: L/C,D/A,D/P,T/T,MoneyGram,Other
Available Specifications:
1(1-100)Kilogram1000/Kilogram1USD

Product Details

Keywords

Aluminum oxide
1344-28-1
Al2O3

Quick Details

ProName: TIANFU-CHEM - Aluminum oxide
CasNo: 1344-28-1
Molecular Formula: Al2O3
Appearance: Solid
Application: Organic synthesis
DeliveryTime: PROMPT
PackAge: IN 25kg drums
Port: SHANGHAI
ProductionCapacity: 10 Metric Ton/Month
Purity: 99.0%
Storage: In Room Temperature
Transportation: As per MSDS
LimitNum: 1 Gram
Heavy metal: N/A
Grade: Industrial Grade,Food Grade,Pharma Gra...

Superiority

Henan Tianfu Chemical Co., Ltd. is located in Zhengzhou High-tech Development Zone with import and export license.

We passed ISO 9001:2008 in 2009, and won "High-tech Enterprise" by provincial government in 2013.The objective of the company is to put quality first and put our customer’s needs first - the satisfaction of our customers is the company's ultimate goal.

Improving product quality and service level is our responsibility, and creating more value for our customer’s is our purpose. We are constantly striving to make Henan Tianfu a leading chemical supplier, and hope to create a better future with you.

Details

Aluminum oxide Basic information

Product Name: Aluminum oxide

Synonyms: Aluminum oxide, alpha-phase;Alumina mat , sheet;Alumina powder (Al2O3);Alumina powder , ball-like (Al2O3);Alumina powder , sphere (Al2O3);Alumina sphere;Alumina substrate;Alumina supporter

CAS: 1344-28-1

MF: Al2O3

MW: 101.96

EINECS: 215-691-6

Product Categories: Industrial/Fine Chemicals;Inorganics;Alumina&Aluminum Hydroxide TLC Adsorbents;Bulk Adsorbents for TLC;Thin Layer Chromatography (TLC);13: Al;AluminumMaterials Science;NanomaterialsMaterials Science;Metal and Ceramic Science;Nanomaterials;Nanoparticles: Oxides, Nitrides, and Other CeramicsNanomaterials;Nanopowders and Nanoparticle Dispersions;New Products for Materials Research and Engineering;Oxides;Biocompatible CeramicsMaterials Science;Biocompatible/Biodegradable Materials;metal oxide;nano structured metal oxide;metals scavenging agent;13: Al;Aluminum;and Other Ceramics;Biocompatible Ceramics;Biomaterials;Materials Science;Metal and Ceramic Science;Nanoparticles: Oxides;Nanopowders and Nanoparticle Dispersions;Nitrides;mining

Mol File: 1344-28-1.mol

Aluminum oxide Structure

Aluminum oxide Chemical Properties

Melting point 2040 °C(lit.)

Boiling point 2980°C

density 3.97

vapor pressure 17 mm Hg ( 20 °C)

refractive index 1.765

Fp 2980°C

storage temp. -20°C

solubility Miscible with ethanol.

form powder

color White to pink

PH 7.0±0.5 ( in H2O)

Water Solubility INSOLUBLE

Merck 14,356

CAS DataBase Reference 1344-28-1(CAS DataBase Reference)

NIST Chemistry Reference Aluminum oxide(1344-28-1)

EPA Substance Registry System Aluminum oxide (Al2O3)(1344-28-1)

Safety Information

Hazard Codes Xi,F

Risk Statements 36/37/38-67-36/38-11-36

Safety Statements 26-24/25-16-7-36

RIDADR UN1219 - class 3 - PG 2 - Isopropanol, solution

WGK Germany -

RTECS BD1200000

F 3

TSCA Yes

HazardClass 8

HS Code 28181010

Hazardous Substances Data 1344-28-1(Hazardous Substances Data)

MSDS Information

Provider Language

alpha-Alumina English

SigmaAldrich English

ACROS English

ALFA English

Aluminum oxide Usage And Synthesis

Chemical Properties white powder

Physical properties Al2O3 Colorless hexagonal crystal; refractive index 1.768; density 3.965 g/cm3 (at 25°C); mp 2072°C; bp 2980°C; insoluble in water α-Al2O3 Colorless rhombic crystal; mp between 2005 to 2025°C ; density 4.022 g/m3 ; hardness 9Moh γ-Al2O3 white microscopic crystal Al2O3•H2O colorless rhombic crystal; refractive index 1.624; density 3.014 g/cm3 Al2O3•3H2O white monoclinic crystal; refractive index 1.577; density 2.420 g/cm3 All forms are insoluble in water.

Uses Occurs in nature in abundance; the principal forms are bauxites and laterites. The mineral corundum is used to produce precious gems, such as ruby and sapphire. Activated aluminas are used extensively as adsorbents because of their affinity for water and other polar molecules; and as catalysts because of their large surface area and appropriate pore sturcture. As adsorbents, they are used for drying gases and liquids; and in adsorption chromatography. Catalytic properties may be attributed to the presence of surface active sites (primarily OH– , O2– , and Al3+ ions). Such catalytic applications include sulfur recovery from H2S (Clauss catalysis); dehydration of alcohols, isomerization of olefins; and as a catalyst support in petroleum refining.

Uses As adsorbent, desiccant, abrasive; as filler for paints and varnishes; in manufacture of alloys, ceramic materials, electrical insulators and resistors, dental cements, glass, steel, artificial gems; in coatings for metals, etc.; as catalyst for organic reactions. As a chromotagraphic matrix; originally called Brockmann aluminum oxide when used for this purpose. The minerals corundum (hardness = 9) and Alundum (obtained by fusing bauxite in an electric furnace) are used as abrasives and polishes; in manufacture of refractories.

Preparation Pure alumina, needed to produce aluminum by the Hall process, is made by the Bayer process. The starting material is bauxite (Al2O3 • nH2O). The ore contains impurities, such as, SiO2, Fe2O3, TiO2, and Na2O. Most impurities are removed following treatment with caustic soda solution. Bauxite is dissolved in NaOH solution. Silica, iron oxides and other impurities are filtered out of the solution. CO2 is then bubbled through this solution. This precipitates out hydrated alumina, which is heated to remove water and produce Al2O3. These impurities are removed. Calcinations of bauxite produce alumina of abrasive and refractory grades. Activated aluminas of amorphous type, as well as the transition aluminas of γ, η, χ, and ρ forms, are obtained from various aluminum hydroxides, such as, α- and β-trihydrates, α-monohydrate and alumina gel. Such chemicals are obtained from bauxite by the Bayer process also.

Reactions Alumina exhibits amphoteric behavior. It is soluble both in acids and bases. With acids, it produces their corresponding salts. It froms Al2(SO4)3, Al(NO3)3 and AlCl3 upon reactions with H2SO4, HNO3, and HCl, respectively. In acid medium, it exists as a solvated aluminum ion, in which water molecules are hexacoordinated to trivalent Al3+, as shown below:

Al2O3 + 6H3O+3H2O ——› 2[Al(H2O)6]3+

(Rollinson, C. L., 1978., Aluminum Compounds. In Kirk-Othmer Encyclopedia of Chemical Technology, 3rd ed. Vol 2, pp 188-97. NY,: Wiley Interscience)

Alumina forms hydroxide in aqueous alkaline solution. The reaction is slow. The products, aluminum hydroxides (hydrated aluminas), contain hexacoordinated aluminohydroxide anion:

Al2O3 + 2OH– + 7H2O → 2[Al(OH)4(H2O)2]–

In its dry state, alumina exhibiting basicity reacts with silica, forming aluminum silicate

Al2O3 + 3SiO2 → Al2(SiO3)3

Similarly, with basic CaO or MgO aluminate salts are formed

MgO + Al2O3 → Mg(AlO2)2 CaO + Al2O3 → Ca(AlO2)2

It forms aluminum nitride, AlN when heated with coal in a stream of nitrogen; and aluminum borate, Al2O3 •B2O3 when heated with B2O3 at 1000°C.

General Description White odorless crystalline powder. Water insoluble. Properties (both physical and chemical) vary according to the method of preparation; different methods give different crystalline modifications. The variety formed at very high temperature is quite inert chemically.

Air & Water Reactions Insoluble in water.

Reactivity Profile Aluminum oxide is chemically amphoteric (behaves as a weak acid in the presence of base and as a weak base in the presence of acid). May act catalytically. May cause the exothermic polymerization of ethylene oxide. May cause the vigorous polymerization of vinyl chloride [MCA SD-75, 1970]. The degree of subdivision of the Aluminum oxide may affect the vigor of such reactions.

Toxicity Chronic inhalation of Al2O3 dusts may cause lung damage.

Aluminum oxide Preparation Products And Raw materials

Preparation Products INVERTASE-->Desulfurizer-->desulfurizating hydrogenation Co-Mo catalysts-->SILICON NITRIDE-->RHODAMINE 110-->ALUMINUM BORATE-->3-Aminobenzamide-->Aluminum dihydrogen phosphate-->ALUMINUM POTASSIUM SULFATE-->ALUMINUM OXIDE,ACTIVATED,NEUTRAL,FOR COLUMN CHROMATOGRAPHY,63-200ΜM-->Lead(II) tetrafluoroborate-->silver catalysts for epoxyethane-->ALUMINUM ZIRCONATE-->Paroxetine-->ammonia synthesis Fe catalysts-->Ceramic pigment-->7-OXABICYCLO[2.2.1]HEPTANE-->2-(1-CYCLOHEXENYL)CYCLOHEXANONE-->Actinomycin D-->Aluminum nitride-->Tri-n-octylamine-->Lo-Han-Kuo extract-->Ethylene oxychlorination catalyst-->catalytic cracking catalyst LC-8-->aluminum dihydrogen tripolyrphosphate-->hydrofining catalysts for raffinate oil-->xylene isomerization catalysts-->carboxyl butadiene-acrylonitrile-epoxy adhesive-->protective catalyst for hydrogenation catalyst-->catalysts for second stage hydrogenation of pyrolysis gasoline-->low palladium content shell-layer catalyst for the first stage hydrogenation of pyrolysis gasoline-->hydrofining catalyst for the feed-stock of reforming process-->atmospheric residue hydrodesulfurization(HDS)catalyst-->selective hydrogenation catalyst of alkynes in C^{4^} cut-->catalyst for benzene oxidation to maleic anhydride-->chlorine removing catalyst(series)-->hydrogenation iron removing catalyst-->active support catalyst-->catalyst for heavy gas oil hydrofining-->JT-1G hydrogenation catalyst

Raw materials Hydrochloric acid-->Sodium carbonate-->Ammonium hydroxide-->Aluminium hydroxide-->Aluminium sulfate-->Aluminium-->CALCIUM CARBONATE-->Magnesium chloride hexahydrate-->Aluminium isopropoxide-->Aluminum ammonium sulfate-->Silica glass-->AMMONIUM ALUM-->Methylene Blue trihydrate-->ALUMINUM INGOTS-->Organic aluminium

Henan Tianfu Chemical Co., Ltd.