Silica, amorphous,fumed, cryst.-free

Basic Information

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CAS Number

112945-52-5

Molecular Formula

O2Si

Molecular Weight

60.08 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Water Treatment Chemicals Coagulants and Flocculants Inorganic Coagulants

Basic Physical Properties

Melting Point

>1600°C

Boiling Point

2230°C

Refractive Index

n20/D 1.46(lit.)

SMILES

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O=[Si]=O

InChI

InChI=1S/O2Si/c1-3-2

InChIKey

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

LogP

-0.6184000000000001

Topological Polar Surface Area

34.14 Å²

Hydrogen Bond Donor/Acceptor

0 / 2

Complexity

18.3

Safety Information

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GHS Hazard Pictograms

H319

H335

Hazard Statement

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Sensitiveness

对湿度敏感

Synonyms & References

English

SAND
AEROSIL(TM) 200
BAKER SILICA GEL
CAB-OSIL M-5
CAB-O-SIL(TM) M-5
COLLOIDAL SILICA
CRISTOBALITE
DAVISIL(TM)
DRYING PEARLS ORANGE
IATROBEADS
LICHROSORB(R) 60
PHTHALOCYANINE IMMOBILIZED SILICA GEL
POTASSIUM HYDROXIDE-IMPREGNATED SILICA GEL
QUARTZ
SILICA
SILICA GEL
SILICA GEL 100
SILICA GEL 12-28 MESH
SILICA GEL 30
Silica,fumed
SILICON DIOXIDE, amorphous
Silicon dioxide,nanometer
Synthetic Amorphous Silica
CERAMIC CASCADE RING
High Surface area Silica nanoparticles, Large, particle size ~900-1000 nm, surface area ~550 m2
High Surface area silica nanoparticles, large, particle size ~900-1000 nm, surface area ~600 m2
High Surface area Silica nanoparticles, Large, particle size ~900-1000 nm, surface area ~700 m2
High Surface area silica nanoparticles, medium, particle size ~300-350 nm, surface area ~600 m2
High Surface area silica nanoparticles, medium, particle size ~400-450 nm, surface area ~400 m2
High Surface area Silica nanoparticles, small, particle size ~130-190 nm, surface area ~380 m2
Silica,Silicic anhydride,Silicon dioxide amorphous

MDL Number

MFCD00011232

FAQ

What is Silica, amorphous, fumed, cryst.-free (CAS: 112945-52-5)?

Silica, amorphous, fumed, cryst.-free (CAS: 112945-52-5) is a form of silicon dioxide (SiO₂) that lacks a crystalline structure. It is produced by the hydrolysis of silicon tetrachloride and is characterized by its high surface area, porosity, and fine, non-agglomerated particles. This form of silica is widely used due to its unique physical properties, such as excellent thermal stability and low reactivity.

What are the main uses of Silica, amorphous, fumed, cryst.-free (CAS: 112945-52-5)?

Silica, amorphous, fumed, cryst.-free (CAS: 112945-52-5) is commonly used as a reinforcing agent in rubber and plastics, a carrier in pharmaceuticals, and a filler in cosmetics and food products. It also serves as a catalyst support in chemical research and is utilized in the production of coatings, inks, and electronics due to its high purity and functional properties.

Is Silica, amorphous, fumed, cryst.-free (CAS: 112945-52-5) safe?

Silica, amorphous, fumed, cryst.-free (CAS: 112945-52-5) is generally considered safe when handled properly. It is non-toxic in its pure form but can cause respiratory irritation if inhaled in large quantities. Safety guidelines recommend using appropriate protective equipment, such as masks and gloves, and following standard industrial hygiene practices to minimize exposure.

How should Silica, amorphous, fumed, cryst.-free (CAS: 112945-52-5) be stored?

Silica, amorphous, fumed, cryst.-free (CAS: 112945-52-5) should be stored in a cool, dry, and well-ventilated area, away from moisture and direct sunlight. It is best kept in a sealed, airtight container to maintain its purity and prevent contamination. Storage conditions should ensure a stable environment to preserve its physical and chemical properties over time.