Silicon dioxide acid washed, 1KG

SKU:
18649-1KG
$79.80

Description

Silicon dioxide acid washed, 1KG

Synonym(s):
Quartz, Silica, Cristobalite, Sand
Linear Formula:
SiO2
CAS Number:
60676-86-0
Molecular Weight:
60.08
MDL number:
MFCD00011232
PubChem Substance ID:
57647755
NACRES:
SB.52

PROPERTIES

Quality Level

100

form

solid

quality

acid washed

impurities

≤0.01% in acid soluble iron (Fe)
≤0.5% soluble in HCl

loss

≤0.5% loss on ignition, 800 °C

refractive index

n20/D 1.544 (lit.)

mp

1610 °C (lit.)

density

2.6 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤100 mg/kg

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Silicon dioxide (SiO2) exists in three crystalline forms, namely quartz, tridymite and cristobalite. It reacts with hydrofluoric acid to form silicon tetrafluoride (SiF4) and water. Silicates are formed on reacting SiO2 with alkali melts. SiO2 is the main component in glass, brick and concrete and also forms the insulator in silicon devices. The alteration of the surface of SiO2 with (3-aminopropyl)triethoxysilane (APTES) for binding lactate dehydrogenase (LDH) to form an amino layer has been reported. The silicon-silicon dioxide structure has been investigated at liquid nitrogen temperature by electron spin resonance spectra.

Application

Silicon dioxide may be used to produce silicon by electrochemical reduction in the presence of calcium chloride (CaCl2) electrolyte. It may also be used to prepare FeCl3/SiO2, a supported reagentfor the oxidative coupling reactions.

SAFETY INFORMATION

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves