推荐产品
等級
high-purity grade
品質等級
形狀
powder
製造商／商標名
Sigma-Aldrich
技術
thin layer chromatography (TLC): suitable
表面積
~500 m2/g
雜質
≤0.01% Fe3+
粒度分佈
2-22 μm
孔徑
60 Å pore size
pH值
~6.8 (10% in aq. suspension)
bp
2230 °C
mp
>1600 °C
負離子痕跡
chloride (Cl-): ≤0.01%
SMILES 字串
O=[Si]=O
InChI
1S/O2Si/c1-3-2
InChI 密鑰
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
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相关类别
一般說明
Silica gel is a rigid 3D network of colloidal silica.[1] It is exclusively used as a support material for the active titanium(III) centers in Ziegler-Natta catalysts. It allows a controlled fragmentation resulting in the formation of uniform polymer particles with narrow particle size distribution and high bulk density.[2] Silica gel is classified as below:
a. Aquagel - pores are filled with water
b. Xerogel - by the process of evaporation, aqueous phase in the pores are removed
c. Aerogel - solvent removed by supercritical extraction[1]
a. Aquagel - pores are filled with water
b. Xerogel - by the process of evaporation, aqueous phase in the pores are removed
c. Aerogel - solvent removed by supercritical extraction[1]
應用
Silica gel was used on glass plates to perform preparative thin layer chromatography.[3]
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
其他客户在看
F. Daayf et al.
Plant physiology, 113(3), 719-727 (1997-03-01)
Phenolic compounds extracted from cucumber (Cucumis sativus L.) leaves were separated and analyzed for their differential presence and fungitoxicity in relation to a prophylactic treatment with Milsana (Compo, Munster, Germany) against powdery mildew (Sphaerotheca fuliginea). Based on our extraction and
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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