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Merck
CN

229423

氧化铝

greener alternative

powder, 99.99% trace metals basis

别名:

氧化铝

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关于此项目

线性分子式:
Al2O3
化学文摘社编号:
1344-28-1
分子量:
101.96
PubChem Substance ID:
329752360
eCl@ss:
38120402
UNSPSC Code:
12352311
NACRES:
SB.52
EC Number:
215-691-6
MDL number:
MFCD00003424

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产品名称

氧化铝, powder, 99.99% trace metals basis

InChI key

TWNQGVIAIRXVLR-UHFFFAOYSA-N

InChI

1S/2Al.3O

SMILES string

O=[Al]O[Al]=O

assay

99.99% trace metals basis

form

powder

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

mp

2040 °C (lit.)

greener alternative category

Enabling

Quality Level

100

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相关类别

Application

氧化铝被用作
  • 塑料的填充物，也是防晒霜和许多化妆品的常见成分。
  • 作为克劳斯工艺中醇脱水的催化剂。
  • 作为尿素转化为氨的催化剂。

Features and Benefits

氧化铝具有：
  • 高孔隙率
  • 高表面积
  • 酸性和碱性

General description

氧化铝（Al2O3）也被称为氧化铝。它通常用于各种橡胶、塑料、陶瓷和耐火材料的强化硬化。它还可以用作聚合物或无机复合材料中的填料或组分，用作催化剂或催化剂载体，用作吸附剂等。
We are committed to bringing you Greener Alternative Products, which belong to one of the four categories of greener alternatives. Aluminum oxide serves as a multifunctional additive or coating in lithium-ion batteries, helping stabilize electrode–electrolyte interfaces, suppress side reactions, improve thermal stability, and extend cycle life. By enabling safer, longer-lasting cells, it reduces material waste and energy use across the battery lifecycle. Click here for more information.

存储类别

11 - Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
MKCX7304
MKCW5153
0000282278
MKCV1862
0000282278

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  4. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  5. How is the purity of Product 229423, Aluminum oxide, determined?

    Product No. 229423 is tested for the amount of specific metal impurities as described on both the specification sheet and the lot specific Certificate of Analysis. Both documents are available from our website. The percent purity is based on this trace metal analysis.

  6. What is the crystalline phase of Product 229423, Aluminum oxide?

    The crystalline phase of Product No. 229423 is alpha.

  7. What other names are there for aluminum oxide, Product No. 229423?  

    Alumina oxide is also known as alumina.

  8. Is Product No. 229423, aluminum oxide, soluble in water?

    No, aluminum oxide, is not soluble in water.  However, aluminum oxide is slowly soluble in either acids or alkali.

  9. What is the particle size of the aluminum oxide, Product No. 229423?  

    Sigma does not determine the particle size of Product No. 229423. Neither is this part of our specifications. However, a vendor description for particle size for some lots in the past (including for lot MKBD5677) is the following: >100 mesh, 30%; >200 mesh, 80%; >325 mesh, 99%.

  10. What is the surface area for Product 229423, Aluminum oxide?

    Sigma does not determine the surface area of Product No. 229423, nor is this part of our specifications. However, a vendor description for surface area for some past lots (including for lot MKBD5677) is 50-60 m2/g.

  11. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Mobeen Murtaza et al.
Molecules (Basel, Switzerland), 25(18) (2020-09-26)
Water-based drilling fluids are extensively used for drilling oil and gas wells. However, water-based muds cause clay swelling, which severely affects the stability of wellbore. Due to two adsorption positions, it is expected that cationic gemini surfactants can reduce the
Dehydration of 2-butanol by a sulfated zirconia/γ-alumina mixed metal oxide catalyst inside a gas chromatograph injection port.
Skrdla PJ and Lindemann C.
Applied Catalysis A: General, 246(2), 227-235 (2003)
Prescott R and Graham MJ.
Oxidation of Metals, 38(3-4), 233-254 (1992)
Thermoanalytical studies of water on activated alumina, Brockmann I-V,(acid, neutral, basic) from- 60? to+ 700? C.
Hampson JW and Bleam WF.
Thermochimica Acta, 288(1), 179-189 (1996)
Jaakko Akola et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(25), 10129-10134 (2013-06-01)
Glass formation in the CaO-Al2O3 system represents an important phenomenon because it does not contain typical network-forming cations. We have produced structural models of CaO-Al2O3 glasses using combined density functional theory-reverse Monte Carlo simulations and obtained structures that reproduce experiments
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