Silicon dioxide

$19.65 - $68380

Price

Brand	Packaging	Price	Product name
AK Scientific 1001AP	5g	$69	3-MercaptopropylethylsulfideSilica,60~200μmparticlesize
American Custom Chemicals Corporation ING0003043	1KG	$6731	SILICON(IV)OXIDE
Chem-Impex 47211	25G	$40	Silicon oxide nanopowder (10-20 nm)
Chem-Impex 47213	25G	$79.4	Silicon oxide nanopowder , modified with amino group (10-20 nm)
Chem-Impex 47209	100G	$87.5	Silicon oxide nanopowder (10-20 nm)
Chem-Impex 47210	100G	$87.5	Silicon oxide nanopowder (Non-porous) (10-20 nm)
Chem-Impex 47211	100G	$80	Silicon oxide nanopowder (10-20 nm)
Chem-Impex 47212	100G	$139.3	Silicon oxide nanopowder treated with silane coupling agents (10-30 nm)
Chem-Impex 47214	100G	$158.8	Silicon oxide nanopowder , modified with epoxy group (10-20 nm)
Chem-Impex 47218	100G	$158.8	Silicon oxide nanopowder , modified with single layer chain (10-20 nm)

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Melting point	>1600 °C(lit.)
Boiling point	>100 °C(lit.)
bulk density	200-800kg/m3
Density	2.2-2.6 g/mL at 25 °C
vapor pressure	13.3hPa at 1732℃
refractive index	1.46
Flash point	2230°C
storage temp.	2-8°C
solubility	Practically insoluble in water and in mineral acids except hydrofluoric acid. It dissolves in hot solutions of alkali hydroxides.
pka	6.65-9.8[at 20 ℃]
form	suspension
Specific Gravity	2.2
color	White to yellow
PH	5-8 (100g/l, H2O, 20℃)(slurry)
Odor	at 100.00%. odorless
Resistivity	1∞10*20 (ρ/μΩ.cm)
Water Solubility	insoluble
Sensitive	Hygroscopic
Hydrolytic Sensitivity	6: forms irreversible hydrate
Crystal Structure	Trigonal
Merck	14,8493
Exposure limits	NIOSH: IDLH 3000 mg/m3; TWA 6 mg/m3
Stability	Stable.
Cosmetics Ingredients Functions	BULKING ABSORBENT OPACIFYING ABRASIVE VISCOSITY CONTROLLING ANTICAKING
InChI	1S/O2Si/c1-3-2
InChIKey	VYPSYNLAJGMNEJ-UHFFFAOYSA-N
SMILES	[Si](=O)=O
CAS DataBase Reference	7631-86-9(CAS DataBase Reference)
IARC	3 (Vol. Sup 7, 68) 1997
NIST Chemistry Reference	Silicon(iv) oxide(7631-86-9)
EPA Substance Registry System	Silica (7631-86-9)
ECETOC JACC REPORT	Silicon dioxide (7631-86-9)