The Surface area of this material is not determined, an estimation is not available. However, historical data indicates 97% of the particles are <0.05 mm.
18514
Kieselguhr
calcined, purified
Synonym(s):
Infusorial earth
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form
powder
quality
calcined, purified
greener alternative product characteristics
Catalysis
Learn more about the Principles of Green Chemistry.
impurities
≤1% HCl solubles
loss
≤1% loss on ignition
anion traces
chloride (Cl-): ≤200 mg/kg
sulfate (SO42-): ≤500 mg/kg
cation traces
Fe: ≤500 mg/kg
greener alternative category
SMILES string
O=[Si]=O
InChI
1S/O2Si/c1-3-2
InChI key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
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General description
Kieselguhr (diatomite, infusorial earth) is the fossilized skeletons of diatom algae. It is mainly made up of silica with many unique features like high porosity, small particle size, low density and thermal conductivity. It is primarily utilized as a source to manufacture filter aids, fire-bricks and adsorbents.[1] Kieselguhr is the main component of the Berkefeld filter used for purifying water.[2] It is also utilized in the filtration process of beer brewing.[3]
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Application
Kieselguhr (infusorial earth) may be used in the following processes:
- Estimation of total fats.[4]
- As a catalyst in the synthesis of ketones and aldehydes via oxidation of corresponding oximes with manganese dioxide.[5]
- Green synthesis of β-nitroalkenes via Michael addition of 1,3-dicarbonyl compounds, by a grinding method in the absence of solvent and catalyst.[6]
- Preparation of KMnO4-kieselguhr reagent for use in the oxidation of primary alcohols to aldehydes with shorter reaction time.[7]
Used for greener amide bond formation from amines and carboxylic acids after thermal activation at high temperature.
Clean, reusable and low cost heterogeneous catalyst for amide synthesis
Clean, reusable and low cost heterogeneous catalyst for amide synthesis
signalword
Danger
hcodes
Hazard Classifications
STOT RE 1 Inhalation
target_organs
Lungs
Storage Class
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
wgk_germany
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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Removal of uranium from aqueous solutions by diatomite (Kieselguhr).
Olmez AS, et al.
J. Radioanal. Nucl. Chem., 240(3), 973-976 (1999)
Sudhakara Gujjala et al.
Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie, 84, 215-223 (2016-09-23)
The objective of the present study was to investigate the preventive effects of hydro-alcoholic extract of Caralluma fimbriata (CFE) and Metformin (Met) against high-fat diet (HF-diet) induced alterations in lipid metabolism in Wistar rats. The experimental animals were divided into
A method for the determination of the total fats of undried feces and other moist masses.
Saxon GJ.
The Journal of Biological Chemistry, 17, 99-102 (1914)
Characterization by Thermal Analysis of Natural Kieselguhr and Sand for Industrial Application.
Meradi H, et al.
Energy Procedia, 74, 1282-1288 (2015)
A simple, rapid, and efficient oxidation of oximes to ketones and aldehydes with manganese dioxide catalyzed by kieselguhr under solvent-free conditions.
Zheng W, et al.
Research on Chemical Intermediates, 39(2), 499-504 (2013)
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Is the surface area of this material known? If the surface area cannot be disclosed can a range be advised?
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