Kieselguhr

Description

CAS: 61790-53-2 | O2Si | 60.08 g/mol

Kieselguhr is used in used as a filtration aid, mild abrasive in products including metal polishes and toothpaste, absorbent for liquids, matting agent for coatings, reinforcing filler in plastics and rubber, anti-block in plastic films, porous support for chemical catalysts, cat litter, activator in blood clotting studies, a stabilizing component of dynamite, and a thermal insulator.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Specifications

Chemical Identifiers

• CAS: 61790-53-2
• Molecular Formula: O2Si
• Molecular Weight (g/mol): 60.08
• MDL Number: MFCD00011232 MFCD00217788 MFCD00163736 MFCD00148266 MFCD00603035 MFCD02100519 MFCD06202255 MFCD07370733
• InChI Key: VYPSYNLAJGMNEJ-UHFFFAOYSA-N
• Synonym: silica, silicon dioxide, quartz, cristobalite, diatomaceous earth, tridymite, silicic anhydride, aerosil, infusorial earth, silica, amorphous
• PubChem CID: 24261
• ChEBI: CHEBI:30563
• SMILES: O=[Si]=O

• Melting Point: >1300°C (decomposition)
• Color: Cream to White
• Physical Form: Powder
• Quantity: 10 kg
• Solubility Information: Insoluble in water.
• IUPAC Name: silanedione
• Odor: Odorless
• Density: 2.0 g/mL
• Chemical Name or Material: Kieselguhr

Safety and Handling

Hazard Category	Warning
Hazard Statement	GHS H Statement H319-H335 Causes serious eye irritation. May cause respiratory irritation.
Precautionary Statement	GHS P Statement P261-P280-P305+P351+P338-P304+P340-P405-P501a Avoid breathing dust/fume/gas/mist/vapors/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.
EINECSNumber	310-127-6
RTECSNumber	EU8655000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only