MERCK 107734.1000 Silicagel 60 For Column Chromatography CAS No.7631-86-9

Key Spec Table

CAS #	EC Number	Hill Formula	Chemical Formula	Molar Mass
7631-86-9	231-545-4	O₂Si	SiO₂	60.08 g/mol

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Description
Catalogue Number	107734

Product Information
CAS number	7631-86-9
EC number	231-545-4
Hill Formula	O₂Si
Chemical formula	SiO₂
Molar Mass	60.08 g/mol
HS Code	2811 22 30
Quality Level	MQ100

Applications
Application	Silica gel 60 (0.063-0.200 mm) for column chromatography (70-230 mesh ASTM). 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	NWG not water endangering
Disposal	32Chromatographic 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	Store at +2°C to +30°C.

Specifications
pH-value (10 % suspension)	6.5 - 7.5
Fe (Iron)	≤ 0.02 %
Pore volume (N₂-isotherm)	0,74 - 0,84 ml/g
Specific surface area (BET)	480 - 540 m²/g
Loss on drying (150 °C)	≤ 7.0 %
Particle Size (d10)	75 - 95 µm
Particle Size (d50)	125 - 150 µm
Particle Size (d90)	212 - 242 µm
The specific surface area and the pore volume are related to the raw material