22141

Celite^® 545 AW

filter aid, acid washed, treated with sodium carbonate, flux calcined

• Synonyma: Diatomaceous earth, flux-calcined
• Číslo CAS: 68855-54-9
• MDL number: MFCD00132803
• UNSPSC Code: 11101527
• PubChem Substance ID: 329752267
• NACRES: SB.54

Vlastnosti

• form: powder
• quality: acid washed; flux calcined; treated with sodium carbonate
• composition: Al₂O₃, 4.0% ; CaO, 0.5% ; Fe₂O₃, 1.3% ; Na₂O + K₂O, 3.3% ; SiO₂, 89.5%
• loss: ~0.3% loss on ignition, 900 °C
• particle size: ≤113 μm (82% (acc. to Cilas))
• pH: <7 (25 °C, 10% in aq. suspension)
• SMILES string: O=[Si]=O
• InChI: 1S/O2Si/c1-3-2
• InChI key: VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Popis

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.

Bezpečnostní informace

• pictograms: GHS08
• signalword: Danger
• hcodes: H372
• pcodes: P260 - P264 - P270 - P314 - P501
• Hazard Classifications: STOT RE 1 Inhalation
• target_organs: Lungs
• Storage Class: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable