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ALUMINUM OXIDE

ALUMINUM OXIDE
ALUMINUM OXIDE structure
CAS No.
1302-74-5
Chemical Name:
ALUMINUM OXIDE
Synonyms
ko7;ku10;nk63;RUBY;fn237;ku5-3;EB 99;F 220;F 280;F 800
CBNumber:
CB6490232
Molecular Formula:
Al2O3
Formula Weight:
101.96
MOL File:
1302-74-5.mol

ALUMINUM OXIDE Properties

Melting point:
2040 °C(lit.)
Boiling point:
2980℃ [CRC10]
Density 
1.06 g/mL at 25 °C
refractive index 
1.771
form 
powder
color 
White
Water Solubility 
insoluble H2O; very slightly soluble acids, alkalies [HAW93]
InChIKey
TWNQGVIAIRXVLR-UHFFFAOYSA-N
CAS DataBase Reference
1302-74-5(CAS DataBase Reference)
EWG's Food Scores
2
EPA Substance Registry System
Corundum (Al2O3) (1302-74-5)
SAFETY
  • Risk and Safety Statements
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26
RIDADR  UN1993
WGK Germany  -
RTECS  BD1200000
3
TSCA  Yes
HazardClass  3
PackingGroup  II
NFPA 704
0
0 0

ALUMINUM OXIDE price More Price(17)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich GF21110375 Alumina fiber, tex number 210, length 1 m, filament diameter 0.02mm 1302-74-5 1ea $218 2021-03-22 Buy
Sigma-Aldrich GF00537207 Alumina tube, outside diameter 4.0 mm, length 250 mm, wall thickness 0.75?mm 1302-74-5 1 ea $382 2021-03-22 Buy
Sigma-Aldrich GF18959507 Alumina sheet, thickness 0.25?mm, size 50 × 50?mm, purity 96.% 1302-74-5 1 ea $439 2021-03-22 Buy
Sigma-Aldrich GF00537207 Alumina tube, outside diameter 4.0 mm, length 250 mm, wall thickness 0.75?mm 1302-74-5 2 ea $482 2021-03-22 Buy
Sigma-Aldrich GF18959507 Alumina sheet, thickness 0.25?mm, size 50 × 50?mm, purity 96.% 1302-74-5 2 ea $598 2021-03-22 Buy

ALUMINUM OXIDE Chemical Properties,Uses,Production

Chemical Properties

Aluminum is a combustible, light, silverywhite, soft, ductile, malleable, amphoteric metal

Uses

Depending on the formulator’s needs, aluminum oxide can be used as an abrasive, or for its absorbent, anti-caking, bulking, opacifying, or viscosity-controlling properties.

Definition

A white powder that is almost insoluble in water. Because of its amphoteric nature it will react with both acids and alkalis. Aluminum oxide occurs naturally as bauxite, corundum, and white sapphire; it is manufactured by heating aluminum hydroxide. It is used in the extraction by electrolysis of aluminum, as an abrasive (corundum), in furnace linings (because of its refractory properties), and as a catalyst (e.g. in the dehydration of alcohols).

Industrial uses

Alumina is the most widely used oxide,chiefly because it is plentiful, relatively lowin cost, and equal to or better than most oxidesin mechanical properties. Density can be variedover a wide range, as can purity — downto about 90% alumina — to meet specificapplication requirements. Alumina ceramicsare the hardest, strongest, and stiffest of theoxides. They are also outstanding in electricalresistivity, dielectric strength, are resistant toa wide variety of chemicals, and are unaffectedby air, water vapor, and sulfurous atmospheres.However, with a melting point ofonly 2039°C, they are relatively low in refractoriness,and at 1371°C retain only about 10%of room-temperature strength. In addition toits wide use as electrical insulators and itschemical and aerospace applications, the highhardness and close dimensional tolerancecapability of alumina make this ceramic suitablefor such abrasion-resistant parts as textileguides, pump plungers, chute linings, dischargeorifices, dies, and bearings.

Industrial uses

The oxide of aluminum is Al2O3. The naturalcrystalline mineral is called corundum, but thesynthetic crystals used for abrasives are designatedusually as aluminum oxide or marketedunder trade names. For other uses and as a powder it is generally called alumina. It iswidely distributed in nature in combinationwith silica and other minerals, and is an importantconstituent of the clays for making porcelain,bricks, pottery, and refractories.
The crushed and graded crystals of aluminawhen pure are nearly colorless, but the finepowder is white. Off colors are due to impurities.American aluminum oxide used for abrasivesis at least 99.5% pure, in nearly colorlesscrystals melting at 2050°C. The chief uses foralumina are for the production of aluminummetal and for abrasives, but it is also used forceramics, refractories, pigments, catalyst carriers,and in chemicals.

Potential Exposure

Most hazardous exposures to aluminum occur in smelting and refining processes. Aluminum is mostly produced by electrolysis of Al2O3 dissolved in molten cryolite (Na3AlF6). Aluminum is alloyed with copper, zinc, silicon, magnesium, manganese, and nickel; special additives may include chromium, lead, bismuth, titanium, zirconium, and vanadium. Aluminum and its alloys can be extruded or processed in rolling mills, wire works, forges, or foundries; and are used in the shipbuilding, electrical, building, aircraft, automobile, light engineering, and jewelry industries. Aluminum foil is widely used in packaging. Powdered aluminum is used in the paints and pyrotechnic industries. Alumina, emery, and corundum has been used for abrasives, refractories, and catalysts; and in the past in the first firing of china and pottery.

Shipping

UN1309 Aluminum powder, coated, Hazard Class: 4.1; Labels: 4.1-Flammable solid. UN1383 Pyrophoric metals, n.o.s. or Pyrophoric alloys, n.o.s., Hazard Class: 4.2; Labels: 4.2-Spontaneously combustible material, Technical Name Required. UN1396 Aluminum powder, uncoated, Hazard Class: 4.3; Labels: 4.3-Dangerous when wet material. NA9260 (North America) Aluminum, molten, Hazard class: 9; Labels: 9-Miscellaneous hazardous material.

Incompatibilities

Aluminum powder forms an explosive mixture with air and is a strong reducing agent that reacts violently with oxidizers, strong bases; strong acids; somehalogenated hydrocarbons; nitrates, sulfates, metal oxides and many other substances. Keep away from combustible materials.

Waste Disposal

Consult with environmental regulatory agencies for guidance on acceptable disposalpractices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal of Aluminum Oxide-Disposal in a sanitary landfill. Mixing of industrial process wastes and municipal wastes at such sites is not encouraged however. Aluminum powder may be recovered and sold as scrap. Recycling and recovery is a viable option to disposal for aluminum metal and aluminum fluoride (A-57).

ALUMINUM OXIDE Preparation Products And Raw materials

Raw materials

Preparation Products


ALUMINUM OXIDE Suppliers

Global( 111)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
SINOPRO.CO.LTD
0082-42-721-7177
0082-42-3676760 michael@sinopro.co.kr South Korea 300 58
Henan DaKen Chemical CO.,LTD.
+86-371-66670886
info@dakenchem.com China 20918 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22607 55
Chemson Industrial (Shanghai) Co., Ltd.
86-21-65208861-ext8007
86-21-65180813 sales1@chemson.com.cn CHINA 117 58
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 29954 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28229 58
CONIER CHEM AND PHARMA LIMITED
86-18523575427
sales@conier.com CHINA 47498 58
Zhuozhou Wenxi import and Export Co., Ltd
+8613111626072 (WhatsApp)
Wechat: +8613111626072 Wickr me: waynehu zzwenxi@126.com CHINA 13187 58
Hebei Zhanyao Biotechnology Co. Ltd
15369953316 15369953316
admin@zhanyaobio.com CHINA 1964 58
Shijiazhuang Gantuo Biotechnology Co., Ltd
+8613373514458 +86-86-13373514458
gantuo02@cngantuo.com China 623 58

View Lastest Price from ALUMINUM OXIDE manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-10-19 ALUMINUM OXIDE
1302-74-5
US $10.00 / KG 1KG 99% 20 tons Hebei Zhanyao Biotechnology Co. Ltd
2021-07-10 ALUMINUM OXIDE
1302-74-5
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
2021-07-02 ALUMINUM OXIDE
1302-74-5
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd

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