Silica Gel 60 extra pure for Column Chrom.

ürün Kodu : 107754.0500

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Ürün Grubu : Merck Kimyasalları

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Description
Catalogue Number 107754
Product Information
CAS number 7631-86-9
EC number 231-545-4
Hill Formula O₂Si
Chemical formula SiO₂
Molar Mass 60.09 g/mol
HS Code 2811 22 00
Quality Level MQ100
Applications
Application Silica gel 60 extra pure for column chromatography 0.063 - 0.200 mm (70 - 230 mesh ASTM). Silica gel 60 CAS No. 7631-86-9, EC Number 231-545-4.
Physicochemical Information
Boiling point 2230 °C (1013 hPa)
Density 2.56 g/cm3 not applicable
Melting Point 1713 °C
pH value 3.7 - 4.7 (>= 40 g/l, H₂O, 25 °C) (slurry)
Bulk density 200 - 1430 kg/m3
Safety Information according to GHS
Storage class 10 - 13 Other liquids and solids
WGK WGK 1 slightly hazardous to water
Disposal 32
Chromatographic residues: Aggressive, explosive (e.g. peroxides) or toxic substances in chromatographic layers or sorbents must be eliminated using suitable methods (washing out, elution) prior to disposal. The solvents used for elution can in many cases be reutilized. Larger quantities of sorbents (e.g. from columns) should be freed from solvents (filtration, drying) and packed into rip-resistant plastic sachets; container I. TLC carrier materials and columns should be disposed of together with the corresponding waste materials (aluminium, glass, plastic); container K.
Storage and Shipping Information
Storage NoTempLimit
Specifications
pH-value (10 % suspension) 6.0 - 7.5
Chloride (Cl) ≤ 0.008 %
Sulfate (SO₄) ≤ 0.003 %
Cd (Cadmium) ≤ 0.0005 %
Cu (Copper) ≤ 0.0005 %
Fe (Iron) ≤ 0.002 %
Pb (Lead) ≤ 0.0005 %
Zn (Zinc) ≤ 0.0005 %
Particle size 90% between 0.063-0.200 mm
Loss on drying (150 °C) ≤ 7.0 %
UV absorption (Dichloro methane extract) conforms

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