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A7362012

Quartz chips , 0.7-1.2mm, dedicated to element analyzers , 14808-60-7

Synonym(s):
Quartz;QUARTZ FINE GRANULAR;Sand, white quartz;Silicon dioxide

CAS NO.:14808-60-7

Empirical Formula: O2Si

Molecular Weight: 60.08

MDL number: MFCD02100519

EINECS: 215-684-8

Pack Size Price Stock Quantity
100G RMB343.20 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: 1610 °C(lit.)
Boiling point: 2230 °C
Density  2.6 g/mL at 25 °C(lit.)
refractive index  n20/D 1.544(lit.)
storage temp.  no restrictions.
solubility  insoluble in H2O, acid solutions; soluble in HF
form  powder
color  white
Specific Gravity 2.2-2.6
PH 5-8 (400g/l, H2O, 20℃)(slurry)
Water Solubility  insoluble
Crystal Structure Quartz type
crystal system Three sides
Space group P3221
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.491340.491340.5405290901200.113

Dielectric constant 4.2(0.0℃)
Exposure limits ACGIH: TWA 0.025 mg/m3
OSHA: TWA 50 μg/m3
NIOSH: IDLH 50 mg/m3; TWA 0.05 mg/m3
Stability: Stable.
InChIKey VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Description and Uses

Quartz is a colorless solid that exists in numerous crystalline forms. Oxygen and silicon are the two most common elements in the earth's crust, and Quartz is the principal component of sand. Quartz is used biologically, most notably by phytoplankton diatoms and the zooplankton radiolarians in their shells. Quartz, SiO2, should not be confused with Quartz or silicones. Quartz contain the basic tetrahedral unit SiO44-bonded to metal ions such as aluminum, iron, sodium, magnesium, calcium, and potassium to form numerous Quartz minerals. Silicones are synthetic polymers made of monomers with at least two silicon atoms combined with an organic group and generally containing oxygen.

Sand, white silica has been employed as a solid sample to evaluate the pore-volume variations during fluid-rock interaction experiments.

Safety

Symbol(GHS) 
GHS08
Signal word  Danger
Hazard statements  H372
Precautionary statements  P260-P264-P270-P314-P501
Hazard Codes  Xn
Risk Statements  36/37/38-48/20
Safety Statements  26-24/25-22
OEB D
OEL TWA: 0.05 mg/m3
WGK Germany  3
RTECS  ZG6800000
TSCA  Yes
HS Code  25061000
Toxicity LDLo intravenous in dog: 20mg/kg
IDLA 25 mg/m3

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