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- Silica Gel GF 250um 10x20cm scored (25 plates/box) P02521
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Silica Gel GF 250um 10x20cm scored (25 plates/box) P02521
$155.00
SKU:
P02521
Weight:
7.10 LBS
Shipping:
Calculated at checkout
Product Description
Silica Gel G & GF UNIPLATES (aka Classic TLC) are the most widely used silica gel TLC plates. No organic substances are added to these products, thus making them compatible with strong acid acid dips and charring visualization techniques.
The silica of these plates are commonly scraped from the glass backing to isolate separated components for other analytical procedures. They are compatible with all organic solvents, however, they are not recommended for use in systems containing greater than 20% water because of the solubility of the gypsum binder in aqueous solutions. (For TLC plates that have higher water tolerance see the GHL & GHLF series of plates.)
The "G" stands for Gypsum and indicates that calcium sulfate hemihydrate (CaSO4·1/2H2O), a refined form of gypsum, has been included in the formulation. Gypsum functions as a binder, improving the cohesion of the adsorbent particles and increasing the adhesion of the layer to the glass substrate. The "F" indicates the presence of a short wave UV indicator that fluoresces at 254 nm and displays a green color.
