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214477

Supelco

Silica gel Inorganic Sorbent

high-purity grade (Davisil Grade 923), 100-200 mesh

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50 G
$185.00
250 G
$429.00
1 KG
$1,830.00

$185.00

国内现货，预计发货时间2025年4月09日详情

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50 G
$185.00
250 G
$429.00
1 KG
$1,830.00

About This Item

CAS号:
112926-00-8
EC 号:
231-545-4
MDL编号:
MFCD00011232
UNSPSC代码:
12352309
PubChem化学物质编号:
24852837
NACRES:
SB.52

$185.00

国内现货，预计发货时间2025年4月09日详情

获取大包装报价

产品名称

硅胶, high-purity grade (Davisil Grade 923), pore size 30 Å, 100-200 mesh

等级

high-purity grade (Davisil Grade 923)

质量水平

200

表单

fine crystals

制造商/商品名称

Davisil®

技术

LPLC: suitable

表面积

430-530 m2/g

基质

Silica

基质活性基团

silica

粒径

100-200 mesh
75-150 μm

孔径

0.40 cm3/g pore volume
30 Å

沸点

2230 °C

mp

>1600 °C

分离技术

hydrophilic interaction (HILIC)

SMILES字符串

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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相关类别

一般描述

硅胶是胶体二氧化硅的刚性3D网络结构。[1]它专门用作Ziegler-Natta催化剂中活性钛（III）中心的载体材料。硅胶可实现控制破碎，形成具有窄粒度分布和高堆积密度的均匀聚合物颗粒。[2]硅胶分类如下：
a.水凝胶 - 孔内充满水
b.干凝胶 - 通过蒸发过程，去除孔中的水相。
c.气凝胶 - 通过超临界萃取去除溶剂[1]

应用

硅胶被用于比较MCM-41型中孔吸附剂。[3]

附注

推荐应用
923级符合ASTM D1319碳氢化合物分析规范

法律信息

Davisil is a registered trademark of W.R. Grace & Co.-Conn.

储存分类代码

11 - Combustible Solids

WGK

nwg

闪点(°F)

Not applicable

闪点(°C)

Not applicable

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
BCCN0515
BCCN0552
BCCM6266
BCCL2876
BCCM2272

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Megan P Caputo et al.
Brain, behavior, and immunity, 81, 455-469 (2019-07-05)
Neonatal brain development can be disrupted by infection that results in microglial cell activation and neuroinflammation. Studies indicate that polyunsaturated fatty acids (PUFAs) and their metabolites can resolve inflammation. It is not known if dietary PUFA increases lipid metabolites in
T Martin et al.
Chemical communications (Cambridge, England), (1)(1), 24-25 (2002-07-18)
Texture-related features of water intrusion in hydrophobised MCM-41 silicas render these materials especially suitable for energy dissipation in mechanical dampers.
A simple method for production of pure silica from rice hull ash
Kalapathy, U., A. Proctor, and J. Shultz.
Bioresource Technology, 73, 257-262 (2000)
Silica gel supported zirconocene dichloride/methylalumoxane catalysts for ethylene polymerization: Effects of heterogenation on activity, polymer microstructure and product morphology.
Janiak, Christoph, and Bernhard Rieger.
Angew. Makromol. Chem., 215, 47-57 (1994)

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Questions

1–2 of 2 Questions  

  1. 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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  2. 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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