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VWR®, Silicate 1,000 mg/L in 1% sodium hydroxide solution, standard for ion chromatography

Catalog Number: (VWRC84992.180)

Supplier: VWR Chemicals

Description: Silicate standard solution, 1000 mg/l, VWR®, Matrix: NaOH 1%, Application: Ion chromatography standards

UOM: 1 * 100 mL

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Specpure® Silica, Standard Solution, SiO₂ 1000 µg/ml

Catalog Number: (ALFA42225.AP)

Supplier: Thermo Scientific

Supplier Article Number:: 42225.AP

Description: Silica standard solution, 1000 mg/l, Specpure®, Contents: Na₂SiO₃ in H₂O, Application: Environmental standards

UOM: 1 * 500 mL

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Vydac 201TP C18, HPLC columns

Supplier: Avantor

Description: Vydac TP is the first range of wide pore media phases developed in the Vydac range and it is the industry's standard for peptide and protein separations. The large pores of the 300 Å TP silica give polypeptide molecules complete access to the interior of the silica pores.

TLC plates, silica gel 60, unmodified layers, SIL G

Supplier: MACHEREY-NAGEL

Description: Unmodified standard silica layers for TLC.

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Sodium silicate in aqueous solution, TECHNICAL

Supplier: VWR Chemicals

Description: Sodium silicate in aqueous solution, TECHNICAL

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Silicon dioxide 200-500 µm

Catalog Number: (ICNA0202809)

Supplier: MP Biomedicals

Supplier Article Number:: 0202809

Description: MP EcoChrom™ SILICA is used as a suspending and thickening agent in pharmaceutical.A silica-based aerogel was used in the Stardust spacecraft to collect extraterrestrial particles. Silica is also used in the extraction of DNA and RNA due to its ability to bind to the nucleic acids under the presence of chaotropes. As hydrophobic silica it is used as a defoamer component. In hydrated form, it is used in toothpaste as a hard abrasive to remove tooth plaque. SiO2 has a number of distinct crystalline forms (polymorphs) in addition to amorphous forms. In the majority of silicates, the Si atom shows tetrahedral coordination, with 4 oxygen atoms surrounding a central Si atom.

MP EcoChrom™ Silica, the chemical compound silicon dioxide, also known as silica (from the Latin silex), is an oxide of silicon with the chemical formula SiO2 with a mean pore size of 60Å and particles size of 200-500μm. MP silica are free of particles outside the standard range. The irregular shape of MP Silica permits the easy packing of column permeability and plate number. They allow easy switching from one sieve cut to another, offering an easy way to change the chromatographic methods. It has been known for its hardness since ancient times. Silica is most commonly found in nature as sand or quartz, as well as in the cell walls of diatoms.

UOM: 1 * 25 kg

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TLC plates, silica gel 60, unmodified layers, SIL HD

Supplier: MACHEREY-NAGEL

Description: Unmodified standard silica layers with "High Definition" properties for TLC.

TLC plates, silica gel 60, modified layers, RP-2/UV₂₅₄

Supplier: MACHEREY-NAGEL

Description: Dimethyl-modified standard silica layers available as glass plates or ALUGRAM® aluminium sheets. Recommended for active plant constituents and steroids.

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Magnesium silicate 60-120 mesh for chromatography

Supplier: Thermo Scientific

Description: Magnesium silicate, activated, is used in polyether adsorption and decolorization effect. Also used in chromatography.
Notes: Incompatible with strong acids and hydrogen fluoride.

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