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Quarz (SiO2) Produkt Beschreibung

Quartz Struktur
14808-60-7
CAS-Nr.
14808-60-7
Bezeichnung:
Quarz (SiO2)
Englisch Name:
Quartz
Synonyma:
DQ12;Samd;AGATE;Quartz;P 820 A;Blue SG;QUARTZFQ;AMETHYST;QUARTZDQ;MIN-U-SIL
CBNumber:
CB9154858
Summenformel:
O2Si
Molgewicht:
60.08
MOL-Datei:
14808-60-7.mol

Quarz (SiO2) Eigenschaften

Schmelzpunkt:
1610 °C(lit.)
Siedepunkt:
2230 °C
Dichte
2.6 g/mL at 25 °C(lit.)
Brechungsindex
n20/D 1.544(lit.)
storage temp. 
no restrictions.
Aggregatzustand
powder
Farbe
white
Wichte
2.2-2.6
PH
5-8 (400g/l, H2O, 20℃)(slurry)
Wasserlöslichkeit
insoluble
Stabilität:
Stable.
InChIKey
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
CAS Datenbank
14808-60-7(CAS DataBase Reference)
NIST chemische Informationen
Silicon oxide(14808-60-7)
IARC
1 (Vol. Sup 7, 68, 100C) 2012
EPA chemische Informationen
Quartz (14808-60-7)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher Xn
R-Sätze: 36/37/38-48/20
S-Sätze: 26-24/25-22
WGK Germany  3
RTECS-Nr. ZG6800000
TSCA  Yes
HS Code  25061000
Giftige Stoffe Daten 14808-60-7(Hazardous Substances Data)
Toxizität LDLo intravenous in dog: 20mg/kg
Bildanzeige (GHS)
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H350 Kann Krebs verursachen. Karzinogenität Kategorie 1A Achtung
H372 Schädigt bei Hautkontakt und Verschlucken die Organe bei längerer oder wiederholter Exposition. Spezifische Zielorgan-Toxizität (wiederholte Exposition) Kategorie 1 Achtung P260, P264, P270, P314, P501
H373 Kann die Organe schädigen bei längerer oder wiederholter Exposition. Spezifische Zielorgan-Toxizität (wiederholte Exposition) Kategorie 2 Warnung P260, P314, P501
Sicherheit
P201 Vor Gebrauch besondere Anweisungen einholen.
P260 Dampf/Aerosol/Nebel nicht einatmen.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P314 Bei Unwohlsein ärztlichen Rat einholen / ärztliche Hilfe hinzuziehen.
P308+P313 BEI Exposition oder falls betroffen: Ärztlichen Rat einholen/ärztliche Hilfe hinzuziehen.
P405 Unter Verschluss aufbewahren.

Quarz (SiO2) Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD

FARBLOSE, WEISSE ODER VERäNDERLICHE SCHWARZE, VIOLETTE, GRüNE KRISTALLE.

CHEMISCHE GEFAHREN

Reagiert mit starken Oxidationsmitteln unter Feuer- und Explosionsgefahr

ARBEITSPLATZGRENZWERTE

TLV: 0,05 mg/m?(Alveolengängige Fraktion); Krebskategorie A2 (Verdacht auf krebserzeugende Wirkung beim Menschen); (ACGIH 2006). MAK: Krebserzeugend Kategorie 1; (DFG 2008).

AUFNAHMEWEGE

Aufnahme in den Körper durch Inhalation.

INHALATIONSGEFAHREN

Verdampfung bei 20°C vernachlässigbar; eine gesundheitsschädliche Partikelkonzentration in der Luft kann jedoch beim Dispergieren schnell erreicht werden.

WIRKUNGEN NACH WIEDERHOLTER ODER LANGZEITEXPOSITION

Möglich sind Auswirkungen auf die Lunge mit nachfolgender Fibrose (Silikose). Krebserzeugend für den Menschen.

LECKAGE

Verschüttetes Material in Behältern sammeln; falls erforderlich durch Anfeuchten Staubentwicklung verhindern. Reste mit viel Wasser wegspülen. Persönliche Schutzausrüstung: Atemschutzgerät, P3-Filter für giftige Partikel.

R-Sätze Betriebsanweisung:

R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R48/20:Gesundheitsschädlich: Gefahr ernster Gesundheitsschäden bei längerer Exposition durch Einatmen.

S-Sätze Betriebsanweisung:

S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S24/25:Berührung mit den Augen und der Haut vermeiden.
S22:Staub nicht einatmen.

Beschreibung

Silicon dioxide, generally known as silica, is a colorless solid that exists in numerous crystalline forms, the most common of which is quartz. Oxygen and silicon are the two most common elements in the earth’s crust, and silicon dioxide is the principal component of sand. Silica is used biologically, most notably by phytoplanktonic diatoms and the zooplankton radiolarians in their shells. The words silica and silicon come from the Latin silex meaning hard stone or fl int. Silica, SiO2, should not be confused with silicates or silicones. Silicates contain the basic tetrahedral unit SiO4 4- bonded to metal ions such as aluminum, iron, sodium, magnesium, calcium, and potassium to form numerous silicate minerals. Silicones are synthetic polymers made of monomers with at least two silicon atoms combined with an organic group and generally containing oxygen.

Chemische Eigenschaften

granular abrasive solid of varied colour, depending upon other

Chemische Eigenschaften

Silicon dioxide/crystalline silica is a component of many mineral dusts and materials which melts to a glass at very high temperature.

Occurrence

QUARTZ is the mineral quartz, oxide of the nonmetallic element silicon, is the commonest of minerals, and appears in a greater number of forms than any other. Its formula is SiO2. Quartz commonly occurs in prismatic hexagonal crystals terminated by a pyramid. This pyramid is due to the equal development of two rhombohedrons, and may be observed in cases where one rhombohedron predominates. Cleavage is not observed; the fracture is typically conchoidal; hardness is 7; specific gravity, 2.65; luster, vitreous to greasy or dull; colorless to white, pink, purple, yellow, blue, green, smoky brown to nearly black; transparent to opaque.

Charakteristisch

Silica can exist in either a crystalline or noncrystalline form. In quartz, SiO2 exists in the natural crystalline state and possesses long-range order, with the silicon atom covalently bonded to oxygen atoms in a tetrahedral arrangement in a regular repeating pattern. Glass is an example of noncrystalline silica. Although natural glasses exist, silica glasses are produced when silica is heated to an elevated temperature and then rapidly cooled. The rapid cooling does not allow the SiO2 to form a regular crystalline structure with long-range order. The result is a solid that behaves like a viscous liquid when heated. Glass is sometimes called a solid solution and fl ows at a very slow rate. This can sometimes be seen in old window glass where the bottom is slightly thicker than the top. The actual structures form a three-dimensional tetrahedral pattern. Silica is sold as sand and its main uses are for glass; ceramics; foundry sand, a source of silicon in the chemical industry; as a filtration media; a filler/extender; an abrasive; and as an adsorbent.

Verwenden

As the art of glass making developed, individuals discovered how to produce different glasses by adding various substances to the silica melt. The addition of calcium strengthened the glass, and other substances imparted color to the glass. Iron and sulfur give brown glass, copper produces a light blue color, and cobalt a dark blue color. Manganese was added to produce a transparent glass, and antimony to clear the glass of bubbles. Most modern glass produced is soda-lime glass and consists of approximately 70% SiO2, 15% Na2O (soda), and 5% CaO (lime). Borosilicate glass is produced by adding about 13% B2O3. Borosilicate glass has a low coeffi cient of thermal expansion and is therefore very heat resistant. It is used extensively in laboratory glassware and in cooking where it is sold under the brand name Pyrex. Because of silica's high melting point, it is ideal for making molds for metal casting. It is regularly used to form iron, aluminum, and copper items. Silica is the primary filter medium used in wastewater treatment. Filtration systems often modify silica physically and chemically to produce activated silica formulations. Besides water treatment, activated silica gels used for chromatography in chemistry laboratories. In the construction industry, silica glass is used as fiber glass insulation, silica sand is a basic ingredient in cement and concrete, and is used indirectly in building products. Silica is used as filler in paints, adhesives, rubber, and coatings. It is added to personal care products such as tooth polishes.

Verwenden

Formulators may select silicon dioxide (solum diaomeae) as an alternative to diatomaceous earth or clay, particularly when developing mineral make-up, pressed or loose powders. Silicon dioxide has abrasive, absorbent, and anti-caking properties, and can also reduce the transparency of a formulation. Silicon dioxide is the u.S. name for what is known as solum diatomeae.

Verwenden

Silicon Dioxide is an anticaking agent, carrier, and dispersant that can absorb approximately 120% of its weight and remain free flowing. it is used in salt, flours, and powdered soups to prevent caking caused by moisture. it is also used in powdered coffee whitener, vanilla powder, baking powder, dried egg yolk, and tortilla chips. the usage level ranges from 1 to 2%. it is also termed silica, amorphous.

Verwenden

Electronic components; piezoelectric control in filters, oscillators, frequency standards, wave filters, radio and TV components; barrel-finishing abra- sive.

Definition

Crystallized silicon dioxide (silica).

Definition

A natural crystalline form of silica (SiO2).

Definition

A purple form of the mineral quartz (silicon(IV) oxide, SiO2) used as a semiprecious gemstone. The color comes from impurities such as oxides of iron.

Definition

agate: A variety of chalcedony thatforms in rock cavities and has a patternof concentrically arranged bandsor layers that lie parallel to the cavitywalls. These layers are frequently alternatingtones of brownish-red.
Moss agate does not show the samebanding and is a milky chalcedonycontaining mosslike or dendritic patternsformed by inclusions of manganeseand iron oxides. Agates areused in jewellery and for ornamentalpurposes.

Definition

quartz: The most abundant andcommon mineral, consisting of crystallinesilica (silicon dioxide, SiO2),crystallizing in the trigonal system. Ithas a hardness of 7 on the Mohs’scale. Well-formed crystals of quartzare six-sided prisms terminating insix-sided pyramids. Quartz is ordinarilycolourless and transparent, inwhich form it is known as rock crystal.Coloured varieties, a number ofwhich are used as gemstones, includeamethyst, citrine quartz (yellow),rose quartz (pink), milk quartz(white), smoky quartz (grey-brown),chalcedony, agate, and jasper.Quartz occurs in many rocks, especiallyigneous rocks such as graniteand quartzite (of which it is the chiefconstituent), metamorphic rockssuch as gneisses and schists, and sedimentary rocks such as sandstone andlimestone. The mineral is piezoelectricand is used in oscillators. It isalso used in optical instruments andin glass, glaze, and abrasives.

Hazard

Avoid inhalation of fine particles.

Health Hazard

Exposure to silica can result in the disease called silicosis. Silicosis is a disabling, nonreversible, and sometimes fatal lung disease caused by overexposure to respirable crystalline silica. In silicosis, silica particles enter the lung where they become trapped, producing areas of swelling. The swelling results in nodules that become progressively larger as the condition worsens. Silicosis is defi ned at several levels of severity: chronic silicosis, accelerated silicosis, and acute silicosis. Chronic silicosis results from long-term (20 years) exposure to low concentrations of silica, whereas acute silicosis is the result of a short-term exposure (a year or less) to high concentrations. Symptoms may not be obvious in cases of chronic silicosis and x-ray screening is recommended for at-risk groups. Th ese include sand-blasters, miners, laborers who regularly saw, drill, and jack-hammer concrete, and general construction such as tunnel drilling. In advanced stages of silicosis, individuals have difficulty breathing, especially when active.

Sicherheitsprofil

Confirmed carcinogen with experimental carcinogenic, tumorigenic, and neoplastigenic data. Experimental poison by intratracheal and intravenous routes. An inhalation hazard. Human systemic effects by inhalation: cough, dyspnea, liver effects. Incompatible with OF2, vinyl acetate. See also other silica entries

mögliche Exposition

Cristobalite is used in the manufacture of water glass, refractories, abrasives, ceramics and enamels. Quartz is used as a mineral, natural or synthetic fiber. Tridymite is used as a filtering and insulating media and as a refractory material for furnace linings. Workers are potentially exposed to crystalline silica in such industries as granite quarrying and cutting, foundry operations; metal, coal, dentistry, painting, and nonmetallic mining; and manufacture of clay and glass products.

Carcinogenicity

Silica was not mutagenic in bacterial assays; both positive and negative results have been reported in a wide variety of in vivo and in vitro genotoxic assays.

Inkompatibilitäten

Violent reactions with powerful oxidizers: fluorine, chlorine trifluoride; manganese trioxide; oxygen difluoride, hydrogen peroxide, etc.; acetylene; ammonia.

Waste disposal

Sanitary landfill

Quarz (SiO2) Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Quarz (SiO2) Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 343)Lieferanten
Firmenname Telefon Fax E-Mail Land Produktkatalog Edge Rate
Hebei Minshang Biotechnology Co.,Ltd
+8613582176207
cathy@hbminshang.cn China 302 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com China 22607 55
Hangzhou FandaChem Co.,Ltd.
008615858145714
+86-571-56059825 fandachem@gmail.com CHINA 9128 55
Shanghai Zheyan Biotech Co., Ltd.
18017610038
zheyansh@163.com CHINA 3623 58
career henan chemical co
+86-0371-55982848
sales@coreychem.com China 29954 58
QINGDAO HONG JIN CHEMCIAL CO.,LTD.
+86 532 83657313
hjt@hong-jin.com CHINA 227 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28229 58
hdzhl biotechnology co., ltd
86-13032617415
sales@luchibiology.com CHINA 1275 58
Shandong chuangyingchemical Co., Ltd.
18853181302
sale@chuangyingchem.com CHINA 5917 58
HENAN BON INDUSTRIAL CO.,LTD
0371-55170695
info@hnbon.com CHINA 26742 58

14808-60-7(Quarz (SiO2))Verwandte Suche:


  • Quartz (SiO2)
  • Rose quartz
  • silica,crystalline(asrespirable
  • silica,crystalline(asrespirabledust)
  • Silicon oxide, quartz
  • P 820 A
  • QUARTZ, CRYSTAL LASER GRADE
  • QUARTZ CALIBRATION PLATE 17°
  • QUARTZ, STONE 99.9%
  • QUARTZ CALIBRATION PLATE 34°
  • QUARTZ MICROFIBRE FILTER CIRCLES WHATMAN QM-A 3.7CM DIA BOX 100
  • FUSED QUARTZ BLOCK 99.00% 0-50MM
  • QUARTZ BLOCK FUSED, 99%
  • QUARTZ, POWDER FUSED
  • QUARTZ, WAFER SURFACE ACOUSTIC WAVE (SAW)
  • QUARTZ, POWDER 20-40 MESH ( WASHED)
  • QUARTZ CALIBRATION PLATE 8.5°
  • FUSED QUARTZ BLOCK 99.99% 0-50MM
  • QUARTZ BLOCK FUSED, 99.99%
  • CRYSTALLINESILICA
  • MIN-U-SIL
  • CRYSTALLINEQUARTZ
  • DQ12
  • ALPHA-QUARTZSILICA
  • MIN-U-SIL10
  • NANOALPHA-QUARTZPARTICLES
  • MIN-U-SIL15
  • AGATE
  • QUARTZFQ
  • NOVACULITE
  • RESPIRABLEQUARTZ
  • FINEALPHA-QUARTZPARTICLES
  • WHETSTONEDUST
  • AMETHYST
  • QUARTZPARTICLES
  • QUARTZDQ12
  • MIN-U-SIL5
  • DQ12QUARTZ
  • QUARTZDQ
  • AGATEDUST
  • Wide Pore Micro-spherical Silica Gel
  • Blue SG
  • Macro-pored Micro-spherical SG
  • SG Type B
  • SILICONE OXIDE
  • 92553, Quartz (particle size 1400-5000 m icrons)
  • SAND, WHITE QUARTZ, -50+70 MESH, SUITABL E FOR CHROMATOGRAPHY
  • 93561, Quartz (particle size 14-90 micro ns)
  • 74620, Quartz (particle size 160-630 mi crons)
  • 52885, Quartz (particle size 2.40-32.00 microns)
  • 79598, Quartz (2.50 m2/g) (nitrogen BET specific surface area)
  • 91577, Quartz (particle size 480-1800 mi crons)
  • QUARTZ, SAND, ACID PURIFIED, 40-100 MESH
  • 75558, Quartz (particle size 1.20-20.00 microns)
  • QUARTZ, POWDER, >230 MESH
  • 91886, Quartz (particle size 50-220 micr ons)
  • QUARTZ, POLISHING MATERIAL FOR CONE,POWD ER, >230 MESH
  • SILICON DIOXIDE COATING QUALITY UMICORE, 0.2-0.7 MM
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