推薦產品
產品名稱
硅胶, high-purity grade, 40, 35-70 mesh, for column chromatography
等級
for column chromatography
high-purity grade
品質等級
形狀
powder or crystals
技術
LPLC: suitable
表面積
350 m2/g
基質
Silica
基質活性組
silica
粒徑
0.2-0.5 mm (35-70 mesh ASTM)
35-70 mesh
孔徑
90 Å mean pore size
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
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一般說明
Silica gel is a rigid 3D network of colloidal silica. It is exclusively used as a support material for the active titanium (III) centers in Ziegler-Natta catalysts. Silica gel allows a controlled fragmentation leading to form uniform polymer particles with narrow particle size distribution and high bulk density. 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
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
應用
It has been used for the solid phase extraction (SPE) fractionation of organohalogen compounds in biological organ tissues. Silica gel column may be employed for the clean-up procedures in multiresidue methods of pesticide analyses and as a support for the fabrication of pentachlorophenol (PCP)-imprinted functionalized sorbents for the analysis of trace pentachlorophenol in water samples by SPE combined with high performance liquid chromatography (HPLC).
Silica gel may be used in separation of single-walled carbon nanotube (SWNT) by simple filtration.
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
個人防護裝備
Eyeshields, Gloves, type N95 (US)
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