EM MERCK CHROMATOGRAPHY

COLUMN CHROMATOGRAPHY & TLC SORBENTS

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Column Chromatography Sorbents by EM Science

The superior quality, reproducible sorbents suit any performance requirements. Bulk density 0.35g/mL for <40µm particle size. Bulk density 0.5g/mL for 40–500µm particle size. Extra pure silica gel (7754-1, 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 9385-3, 9385-4, 9385-5, 9385-9, 7734-3, 7734-4, and 7734-7.

Key to code letters/numbers in column 1 of price table: Activity refers to Brockmann activity. Relative activity is directly related to the water content of the sorbent, most active being I and thereafter decreasing to the least active III.

NOTICE: Aluminum oxide chromatography sorbents will adsorb water from the air. It must be stored in air-tight containers or its Brockmann activity can change.

Sorbent Pore Size,
Å
Particle Size,
µm
pH Size Item No. Unit Price USD
Sorbents for Analytical and Preparative Thin Layer Chromatography (TLC)              
Aluminum Oxide, G, Neutral 60 5–40 7.5 25 kg 1090-9 25 Kg $2,910.46
Aluminum Oxide, G F254, Neutral 60 5–40 7.5 500 g 1092-1 500 g $175.55
Aluminum Oxide, Basic, Activity II-III 90 5–40 7.5 1 kg 1097-3 1 Kg $283.36
Kieselguhr, G 5–40 7.0 500 g 8129-1 500 g $175.55
Silica Gel 60 <63 7.0 5 kg 7729-5 5 Kg $1,052.53
Silica Gel, G 60 5–40 7.0 500 g 7731-1 500 g $188.62
Silica Gel, G 60 5–40 7.0 1 kg 7731-3 1 Kg $351.53
Silica Gel, G 60 5–40 7.0 5 kg 7731-5 5 Kg $1,295.41
Silica Gel, G 60 5–40† 7.0 1 kg 11677-3 1 Kg $323.89
Silica Gel, G 60 5–40† 7.0 25 kg 11677-9 25 Kg $2,897.69
Silica Gel, G F254 60 5–40 7.0 5 kg 7730-5 5 Kg $1,295.41
Silica Gel, P F254, with Gypsum 60 5–40 7.0 1 kg 7749-3 1 Kg $307.51
Silica Gel, P F254, with Gypsum 60 5–40 7.0 2.5 kg 7749-2 2.5 Kg $458.88
Silica Gel, Silanized 60 63–200 7.0 250 g 7719-1 250 g $431.83
Silica Gel, Silanized 60 63–200 7.0 1 kg 7719-3 1 Kg $1,566.96
Sorbents for Preparative Column Chromatography (with <0.02% Fe and <0.02% Cl)
Aluminum Oxide, Basic, Activity I 60 63–200 9.0 ±0.5 1 kg 1067-3 1 Kg $307.51
Aluminum Oxide, Basic, Activity I 60 63–200 9.0 ±0.5 2 kg 1067-6 2 Kg $580.31
Aluminum Oxide, Acidic, Activity I 90 63–200 4.0 ±0.5 1 kg 1078-3 1 Kg $314.36
Aluminum Oxide, Acidic, Activity I 90 63–200 4.0 ±0.5 2 kg 1078-6 2 Kg $580.31
Aluminum Oxide, Basic, Activity I 90 63–200 9.0 ±0.5 1 kg 1076-3 1 Kg $307.51
Aluminum Oxide, Neutral, Activity I 90 63–200 7.3 ±0.5 1 kg 1077-2 1 Kg $307.51
Aluminum Oxide, Neutral, Activity I 90 63–200 7.3 ±0.5 2 kg 1077-6 2 Kg $580.31
Silica Gel 40 63–200 5.5 ±0.5 1 kg 10180-3 1 Kg $283.36
Silica Gel 40 200–500 5.5 ±0.5 1 kg 10181-3 1 Kg $283.36
Silica Gel 60 40–63 7.0 ±0.5 1 kg 9385-3 1 Kg $395.35
Silica Gel 60 40–63 7.0 ±0.5 2.5 kg 9385-4 Each $673.58
Silica Gel 60 40–63 7.0 ±0.5 5 kg 9385-5 5 Kg $990.14
Silica Gel 60 40–63 7.0 ±0.5 25 kg 9385-9 25 Kg $3,117.24
Silica Gel 60 63–200 7.0 ±0.5 1 kg 7734-3 1 Kg $263.70
Silica Gel 60 63–200 7.0 ±0.5 2.5 kg 7734-4 2.5 Kg $556.42
Silica Gel 60 63–200 7.0 ±0.5 25 kg 7734-7 25 Kg $2,498.23
Silica Gel 60 200–500 7.0 ±0.5 500 g 7733-1 500 g $203.99
Silica Gel 60 200–500 7.0 ±0.5 1 kg 7733-3 1 Kg $283.36
Silica Gel 60 200–500 7.0 ±0.5 5 kg 7733-5 5 Kg $1,066.02
Silica Gel 60 200–500 7.0 ±0.5 25 kg 7733-9 25 Kg $2,746.81
Silica Gel, Chromatospec 60 15–40 7.0 ±0.5 500 g 15111-1 500 g $203.27
Silica Gel, Chromatospec 60 15–40 7.0 ±0.5 1 kg 15111-3 1 Kg $391.33
Silica Gel, Chromatospec 60 15–40 7.0 ±0.5 25 kg 15111-9 25 Kg $3,346.36
Silica Gel, Extra Pure 60 63–200 6.5 ±0.5 500 g 7754-1 500 g $320.98
Silica Gel, Extra Pure 60 63–200 6.5 ±0.5 1 kg 7754-3 1 Kg $577.64
Silica Gel 100 63–200 6.5 5 kg 10184-5 5 Kg $1,066.02
Silica Gel 100 200–500 6.5 500 g 10185-1 500 g $215.91
Sorbents for Preparative Column Chromatography
Silica Gel, RP18 60 40–63 100 g 10167-3 100 g $311.51
Geduran Silica Gel             $0.00
Silica Gel 60 40–63 7.0 ±0.5 500 g 11567-2 500 g $135.79
Silica Gel 60 40–63 7.0 ±0.5 1 kg 11567-3 1 Kg $203.56
Silica Gel 60 40–63 7.0 ±0.5 2 kg 11567-6 2 Kg $321.50
Silica Gel 60 40–63 7.0 ±0.5 2.5 kg 11567-4 2.5 Kg $381.54
Silica Gel 60 40–63 7.0 ±0.5 5 kg 11567-5 5 Kg $572.81
Silica Gel 60 40–63 7.0 ±0.5 25 kg 11567-1 25 Kg $2,159.19
Silica Gel 60 63–200 7.0 ±0.5 1 kg 110832-3 1 Kg $130.68
Silica Gel 60 63–200 7.0 ±0.5 2.5 kg 110832-4 Each $294.31
Silica Gel 60 63–200 7.0 ±0.5 25 kg 110832-1 25 Kg $1,446.26