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Merck

237973

Sigma-Aldrich

硝酸铝 九水合物

ACS reagent, ≥98%

别名:

硝酸铝

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预计发货时间2025年4月21日详情


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100 G
$122.00
500 G
$296.00
2.5 KG
$928.00

About This Item

线性分子式:
Al(NO3)3 · 9H2O
CAS号:
分子量:
375.13
EC號碼:
MDL號碼:
分類程式碼代碼:
12352302
PubChem物質ID:
NACRES:
NB.24

$122.00


预计发货时间2025年4月21日详情


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等級

ACS reagent

化驗

≥98%
98.0-102.0% (ACS specification)

形狀

crystals

反應適用性

reagent type: catalyst
core: aluminum

雜質

≤0.005% insolubles

pH值

2.5-3.5 (25 °C, 50 g/L)

mp

73 °C (lit.)

負離子痕跡

chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.005%

正離子痕跡

Ca: 0.005%
Fe: ≤0.002%
K: 0.002%
Mg: 0.001%
Na: 0.005%
heavy metals: ≤0.001% (by ICP-OES)

SMILES 字串

O.O.O.O.O.O.O.O.O.[Al+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O

InChI

1S/Al.3NO3.9H2O/c;3*2-1(3)4;;;;;;;;;/h;;;;9*1H2/q+3;3*-1;;;;;;;;;

InChI 密鑰

SWCIQHXIXUMHKA-UHFFFAOYSA-N

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一般說明

硝酸铝九水合物是一种铝盐,可以通过将铝或氢氧化铝溶解在稀硝酸中制备。它用于制备绝缘纸、变压器铁心层压板和阴极射线管加热元件。

應用

硝酸铝九水合物可用作催化剂合成:
  • 通过一锅曼尼希反应合成β-氨基羰基化合物。
  • 吲哚与芳香醛的亲电取代反应生成双吲哚甲烷。
  • 无溶剂Biginelli反应生成3,4-二氢嘧啶酮。

特點和優勢

  • 易于通过简单的相分离回收
  • 可重复使用,不会明显丧失催化活性

象形圖

Corrosion

訊號詞

Danger

危險聲明

危險分類

Eye Dam. 1

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 1

閃點(°F)

does not flash

閃點(°C)

does not flash


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Mechanism of thermal decomposition and ?-pyrolysis of aluminum nitrate nonahydrate [Al (NO3)3? 9H2O].
El-Shereafy E, et al.
J. Radioanal. Nucl. Chem., 237(1-2), 183-186 (1998)
Preparation of mullite fibers from aluminum isopropoxide-aluminum nitrate-tetraethylorthosilicate solutions by sol-gel method.
Song KC.
Materials Letters, 35(5), 290-296 (1998)
Effect of preparation conditions on the porous properties of coprecipitated Al2O3-SiO2 xerogels synthesized from aluminium nitrate nonahydrate and tetraethylorthosilicate.
Okada K, et al.
Microporous and Mesoporous Materials : The Official Journal of the International Zeolite Association, 37(3), 355-364 (2000)
Okada et al.
Journal of colloid and interface science, 219(1), 195-200 (1999-10-21)
Amorphous aluminosilicate xerogels with various chemical compositions were prepared by coprecipitation, and their surface acidity and hydrophilicity were investigated by NH(3) gas temperature programed desorption (TPD), water vapor adsorption-desorption isotherms, and (27)Al magic angle spinning nuclear magnetic resonance (MAS NMR).
Kinetics of liquid phase cyclohexene hydrogenation on Pd-Al/biomorphic carbon catalysts.
Caza?a F, et al.
Catalysis Today, 13, 14-14 (2014)

Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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