22139

Celite^® Filter Cel

filter aid, slightly calcined

• Synonym(s): Diatomaceous earth, calcined
• CAS Number: 91053-39-3
• EC Number: 293-303-4
• MDL number: MFCD00132803
• UNSPSC Code: 11101527
• PubChem Substance ID: 329752265
• NACRES: SB.54

Properties

• Quality Level: 200
• form: powder
• quality: slightly calcined
• composition: Al₂O₃, 3.3% ; CaO, 0.8% ; Fe₂O₃, 1.4% ; Na₂O + K₂O, 1.0% ; SiO₂, 89.0%
• technique(s): ion chromatography: suitable
• loss: ~1.5% loss on ignition, 900 °C
• median particle size: ≤45.3 μm (82% (acc. to Cilas))
• pH: ~8.0 (25 °C, 10% in aq. suspension)
• SMILES string: O=[Si]=O
• InChI: 1S/O2Si/c1-3-2
• InChI key: VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Description

General description

Diatomaceous earth is made up of natural amorphous silica formed from the fossilized skeletons of diatoms. It is extracted, crushed, dried and calcined with flux material. DE is widely used as filler in construction materials, paints and as an anti-caking agent for agricultural chemicals. It has high water and oil absorption ability.

Application

Diatomaceous earth may be used as an adsorbent for column chromatography.

Caution

Not Intended for cGMP Parenteral Pharmaceutical Manufacturing

Legal Information

Celite is a registered trademark of Imerys Minerals California, Inc.

Safety Information

• Pictograms: GHS08
• Signal Word: Danger
• Hazard Statements: H372
• Precautionary Statements: P260 - P264 - P270 - P314 - P501
• Hazard Classifications: STOT RE 1 Inhalation
• Target Organs: Lungs
• Storage Class Code: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• WGK: nwg
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable