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SILAW

Sigma-Aldrich

Silicic acid

BioReagent, suitable for column chromatography, 200-400 mesh (38 - 75 μm)

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About This Item

Empirical Formula (Hill Notation):
H2O3Si
CAS Number:
7699-41-4
Molecular Weight:
78.10
EC Number:
231-716-3
MDL number:
MFCD00054122
UNSPSC Code:
23201100
PubChem Substance ID:
24899866
NACRES:
SB.54

product line

BioReagent

assay

≥99.9% Si (as SiO2) basis

form

solid

impurities

≤0.2% % nonvolatile with HF

particle size

200-400 mesh (38 - 75 μm)

anion traces

chloride (Cl-): ≤0.01%
sulfate (SO42-): ≤0.02%

cation traces

Fe: ≤0.01%
heavy metals (as Pb): ≤0.001%

suitability

suitable for column chromatography

SMILES string

O[Si](O)=O

InChI

1S/H2O3Si/c1-4(2)3/h1-2H

InChI key

IJKVHSBPTUYDLN-UHFFFAOYSA-N

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Application

Silicic acid is used in protein chromatography. Silicic acid has been used in a study to demonstrate the anti-biofilm potential of a glycolipid surfactant produced by a tropical marine strain of Serratia marcescens. Silicic acid has also been used to study the antioxidant activity of fresh and processed Jalapeño and Serrano peppers.

Preparation Note

Acid-washed.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H319,H335

Hazard Classifications

Eye Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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S K Gupta et al.
Infection and immunity, 62(10), 4572-4579 (1994-10-01)
This study investigated which adhesins of Pseudomonas aeruginosa interact with the glycolipid asialo GM1, using solid-phase binding and thin-layer chromatography assays. Radioiodinated pili and flagella contaminated with lipopolysaccharide (LPS) bound to the glycolipid. When LPS was reduced to acceptable levels
Koki Nagayama et al.
The Journal of antimicrobial chemotherapy, 50(6), 889-893 (2002-12-04)
The bactericidal activity of phlorotannins from brown algae against food-borne pathogenic bacteria (25 strains), methicillin-resistant Staphylococcus aureus (MRSA) (nine strains) and Streptococcus pyogenes (one strain) was examined and compared with that of catechins. In addition, the effect of the oral
Devendra H Dusane et al.
Biofouling, 27(6), 645-654 (2011-06-29)
A tropical marine bacterium isolated from the hard coral, Symphyllia sp. was identified as Serratia marcescens on the basis of morphological, biochemical and 16S rDNA analysis. The bacterium showed antimicrobial activity towards the pathogens Candida albicans and Pseudomonas aeruginosa and
Emilio Alvarez-Parrilla et al.
Journal of agricultural and food chemistry, 59(1), 163-173 (2010-12-04)
In this research, total phenols, flavonoids, capsaicinoids, ascorbic acid, and antioxidant activity (ORAC, hydroxyl radical, DPPH, and TEAC assays) of fresh and processed (pickled and chipotle canned) Jalapeño and Serrano peppers were determined. All fresh and processed peppers contained capsaicin
Hiroaki Saito et al.
Journal of oleo science, 64(6), 603-616 (2015-06-02)
The lipid and fatty acid composition of the muscle of the wild Japanese freshwater eel, Anguilla japonica, was analyzed between the initial and terminal stages of spawning migration to clarify the relationship between lipid physiology and maturation. Triacylglycerols were the
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