跳轉至內容
Merck
全部照片(1)

重要文件

214477

Supelco

Silica gel Inorganic Sorbent

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

登入查看組織和合約定價


About This Item

CAS號碼:
EC號碼:
MDL號碼:
分類程式碼代碼:
12352309
PubChem物質ID:
NACRES:
SB.52
暫時無法取得訂價和供貨情況

產品名稱

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

等級

high-purity grade (Davisil Grade 923)

品質等級

形狀

fine crystals

製造商/商標名

Davisil®

技術

LPLC: suitable

表面積

430-530 m2/g

基質

Silica

基質活性組

silica

粒徑

100-200 mesh
75-150 μm

孔徑

0.40 cm3/g pore volume
30 Å

bp

2230 °C

mp

>1600 °C

分離技術

hydrophilic interaction (HILIC)

SMILES 字串

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI 密鑰

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

尋找類似的產品? 前往 產品比較指南

一般說明

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]

應用

硅胶被用于比较MCM-41型中孔吸附剂。[3]

腳註

推荐应用
923级符合ASTM D1319碳氢化合物分析规范

法律資訊

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

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

nwg

閃點(°F)

Not applicable

閃點(°C)

Not applicable


從最近期的版本中選擇一個:

分析證明 (COA)

Lot/Batch Number

未看到正確版本?

如果您需要一個特定的版本,您可以透過批號來尋找特定憑證。

已經擁有該產品?

您可以在文件庫中找到最近購買的產品相關文件。

存取文件庫

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)

相關內容

Low pressure liquid chromatography (LPLC) operates at low pressures, using a pump to drive the mobile phase onto the column.

低壓液相色譜 (LPLC) 在低壓力下操作,使用泵將流動相驅動到色譜柱上。

低壓液相色譜 (LPLC) 在低壓力下操作,使用泵將流動相驅動到色譜柱上。

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

      Helpful?

  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

      Helpful?

Reviews

No rating value

Active Filters

我們的科學家團隊在所有研究領域都有豐富的經驗,包括生命科學、材料科學、化學合成、色譜、分析等.

聯絡技術服務