SILICON DIOXIDE - pure 500g WARCHEM

Technical information on chemical reagents:

• Chemical formula: SiO₂
• CAS number: 7631-86-9
• EC number: 231-545-4
• Synonyms: silicon dioxide, silicon(IV) oxide
• Genre: pure
• Purity: pure
• Molar mass: 60.08 g/mol
• Appearance: white, amorphous or crystalline powder
• Odor: odorless
• Melting point: 1710 °C
• Boiling point: 2230 °C
• Density: approx. 2.2–2.6 g/cm³ (depending on crystal form)
• Solubility: practically insoluble in water and organic solvents, soluble in hydrofluoric acid
• Packaging: dust-tight plastic containers or bags with liner
• Shelf life: at least 24 months when stored dry

Examples of professional applications in various industries:

• Analytical chemistry: Used as a carrier material or filler in chromatography columns and as a reference material in IR spectroscopy.
• Research and development: Component in studies on catalysis, surface functionalization, and solid-state analysis.
• Construction materials industry: Component in cements, glazes, and molding compounds as an additive or reactive component.
• Cosmetics industry: Used in powders and pastes as a flow aid and thickener – only with defined purity.

Hazard statements on product label:

H335: May cause respiratory irritation.

Safety instructions on product label:

P261: Avoid breathing dust.
P280: Wear protective gloves/eye protection/face protection.
P304 + P340: IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.
P501: Dispose of contents/container in accordance with local/regional regulations.

Restrictions: For use by qualified personnel only under controlled conditions.

Recommended storage conditions:

1. Store dry and tightly sealed to avoid dust formation.
2. Protect from moisture and strong chemicals.
3. Ensure adequate ventilation to prevent inhalation of fine dust.
4. Store in original packaging.
5. Use only with appropriate personal protective equipment.