Sorbents for Thin Layer Chromatography, EMD Merck
These superior quality, reproducible sorbents suit any performance requirements. Bulk density is 0.35g/mL for particle sizes less than 40µm and 0.5g/mL for particle sizes from 40–500µm. Extra pure silica gel (EM-7754-1, EM-7754-3) is acid washed and contains <0.0005% lead, <0.002% iron, <0.0005% copper, <0.0005% cadmium, <0.0005% zinc, <0.008% chloride, <0.0005% phosphate, <0.003% sulfate, and <0.004% nitrate. Geduran* gel is an economical alternative to EM-9385 and EM-7734 silica gels. All aluminum oxides are activated. Activity (I–III) refers to Brockmann activity. Relative activity is directly related to the water content of the sorbent, most active at I and least active at III.
| Sorbent | Pore Size, Å | Particle Size, µm | pH | Size | Item No. | Price | | Sorbents for Analytical and Preparative Thin Layer Chromatography (TLC) | | Aluminum Oxide, G, Neutral | 60 | 5–40 | 7.5* | 25 kg | EM-1090-9 | $2,946.83 | | Aluminum Oxide, G F254, Neutral | 60 | 5–40 | 7.5* | 500 g | EM-1092-1 | $177.73 | | Aluminum Oxide, Basic, Activity II-III | 90 | 5–40 | 7.5* | 1 kg | EM-1097-3 | $286.90 | | Kieselguhr, G | — | 5–40 | 7.0* | 500 g | EM-8129-1 | $177.73 | | Silica Gel | 60 | <63 | 7.0* | 5 kg | EM-7729-5 | $1,065.69 | | Silica Gel, G | 60 | 5–40 | 7.0* | 1 kg | EM-7731-3 | $355.91 | | Silica Gel, G | 60 | 5–40 | 7.0* | 5 kg | EM-7731-5 | $1,311.59 | | Silica Gel, G | 60 | 5–40† | 7.0* | 25 kg | EM-11677-9 | $2,933.90 | | Silica Gel, ACS Grade, 3–8 Mesh | — | — | — | 25 kg | EM-SX0143P-20 | $1,576.21 | | Silica Gel, ACS Grade, 28–200 Mesh | — | — | — | 2.5 kg | EM-SX0143J-3 | $213.21 | | Silica Gel, ACS Grade, 28–200 Mesh | — | — | — | 25 kg | EM-SX0143J-20 | $1,813.68 | | Silica Gel, G F254 | 60 | 5–40 | 7.0* | 5 kg | EM-7730-5 | $1,311.59 | | Silica Gel, P F254, with Gypsum | 60 | 5–40 | 7.0* | 1 kg | EM-7749-3 | $311.34 | | Silica Gel, P F254, with Gypsum | 60 | 5–40 | 7.0* | 2.5 kg | EM-7749-2 | $464.60 | | Silica Gel, Silanized | 60 | 63–200 | 7.0* | 250 g | EM-7719-1 | $437.22 | | Silica Gel, Silanized | 60 | 63–200 | 7.0* | 1 kg | EM-7719-3 | $1,586.55 |
| *pH of 10% aqueous solution. | | †Mean particle size is 15 µm. |
|
Add To Your Shopping Cart
|
Select Quantity (*) :
|
|
|
|
