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Merck 113126 Silicon dioxide colloidal, highly dispersed EMPROVE® ESSENTIAL Ph Eur, NF, JP, E 551 500 gr
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Merck 113126 Silicon dioxide colloidal, highly dispersed EMPROVE® ESSENTIAL Ph Eur, NF, JP, E 551 500 gr

Kategori
Diğer Analitik Kimyasallar
Marka
MERCK
Stok Kodu
LB.M.1131260500
Kısa Bilgi
CAS Number: 7631-86-9 EC Number: 231-545-4 Molar Mass: 60.08 g/mol Chemical Formula: SiO₂ Hill Formula: O₂Si Grade: Ph Eur,NF,JP,E 551
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Merck 113126 Silicon dioxide colloidal, highly dispersed EMPROVE® ESSENTIAL Ph Eur, NF, JP, E 551 500 gr
Catalogue Number 113126
Merck 113126 Silicon dioxide colloidal, highly dispersed EMPROVE® ESSENTIAL Ph Eur, NF, JP, E 551 
Product Information
CAS number 7631-86-9
EC number 231-545-4
Grade Ph Eur,NF,JP,E 551
Hill Formula O₂Si
Chemical formula SiO₂
Molar Mass 60.08 g/mol
HS Code 2811 22 00
Quality Level MQ500
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 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 Store at +15°C to +25°C.
Specifications
Identity passes test
Assay (calculated on calcined substance) 99.0 - 100.5 %
Substances soluble in water ≤ 5 %
pH-value (4 %, water) 3.5 - 5.5
Chloride (Cl) ≤ 0.011 %
Heavy metals (as Pb) ≤ 0.0025 %
Al (Aluminium) ≤ 0.0010 %
As (Arsenic) ≤ 0.0003 %
Ca (Calcium) conforms
Fe (Iron) ≤ 0.0500 %
Hg (Mercury) ≤ 0.0001 %
Pb (Lead)* ≤ 0.0005 %
Pb (Lead) (ICP)* ≤ 0.0005 %
Residual solvents (ICH Q3C) excluded by production process
Loss on ignition (out of dried substance) ≤ 2.0 %
Loss on drying ≤ 2.5 %
Spec. surface 200 ± 25
Elemental impurity specifications have been set considering ICH Q3D (Guideline for Elemental impurities). Class 1-3 elements are not likely to be present above the ICH Q3D option 1 limit, unless specified and indicated (*).
Conforms to the purity criteria on food additives according to the current European Commission Regulation.
Corresponds to Ph Eur,NF,JP,E 551
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Merck 113126 Silicon dioxide colloidal, highly dispersed EMPROVE® ESSENTIAL Ph Eur, NF, JP, E 551 500 gr CAS Number: 7631-86-9 EC Number: 231-545-4 Molar Mass: 60.08 g/mol Chemical Formula: SiO₂ Hill Formula: O₂Si Grade: Ph Eur,NF,JP,E 551 LB.M.1131260500
Merck 113126 Silicon dioxide colloidal, highly dispersed EMPROVE® ESSENTIAL Ph Eur, NF, JP, E 551 500 gr

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