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440345

Supelco

Glass spheres

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100 G
166,00 zł
500 G
512,00 zł

166,00 zł


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100 G
166,00 zł
500 G
512,00 zł

About This Item

Wzór empiryczny (zapis Hilla):
O2Si
Numer CAS:
Masa cząsteczkowa:
60.08
Numer WE:
Numer MDL:
Kod UNSPSC:
23201100
Identyfikator substancji w PubChem:
NACRES:
SB.52

166,00 zł


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klasa czystości

high-purity grade

Formularz

powder

metody

LPLC: suitable

powierzchnia

125 m2/g

Matryca

Silica

grupa aktywna macierzy

silica

średnia wielkość cząstek

9-13 μm

gęstość

1.1 g/mL at 25 °C (lit.)

przydatność

suitable for acidity or alkalinity (alkalinity < 0.5 meq/g ASTM D 3100)

ciąg SMILES

O=[Si]=O

InChI

1S/O2Si/c1-3-2

Klucz InChI

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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Opis ogólny

Silica is a naturally occurring material in minerals, flint and in some plants in crystalline phase. Silica used in industries is in synthetic form. Surface area, pore volume, pore size and particle size are independently controllable to some extent. The crystalline silica may be classified based on atmospheric pressure as:
a. Quartz = 1143K
b. Tridymite 1143 - 1743K
c. Cristobalite = 1743, over 1973K it forms amorphous vitreous silica glass.[1]

Zastosowanie

Low density filler for coatings and plastics.
Silica glass spheres are low density filler for coatings and plastics. Silica was used in synthesis of silicalite.[2] Silica was also used to assist the catalytic growth of oxide and nitride nanowires.[3]

Cechy i korzyści

Light weight, crush-resistant filler. Imparts dimensional stability, reduces warpage, reduces plastic melt viscosity and provides multidirectional orientation in reinforced composites.

Postać fizyczna

Hollow, spherical non-porous glass beads.
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Kod klasy składowania

11 - Combustible Solids

Klasa zagrożenia wodnego (WGK)

WGK 1

Temperatura zapłonu (°F)

Not applicable

Temperatura zapłonu (°C)

Not applicable

Środki ochrony indywidualnej

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges


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Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.

Odwiedź Bibliotekę dokumentów

Klienci oglądali również te produkty

Norma A Sánchez-Flores et al.
Journal of colloid and interface science, 323(2), 359-364 (2008-05-27)
Well crystallized silicalite-1 has been obtained from three sources of amorphous silica, namely, rice hull ashes, commercial Davisil, and a fume silica from Aldrich. The silicas were first dissolved in glycerol according to a recently described reaction. This reaction transforms
The Heat Capacities of Quartz, Cristobalite and Tridymite at Low Temperatures
Anderson, C. Travis.
Journal of the American Chemical Society, 58, 568-570 (1936)
Silica-assisted catalytic growth of oxide and nitride nanowires.
Tang, C. C., et al.
Chemical Physics Letters, 333, 12-15 (2001)
Danielle D Cloutier et al.
Applied and environmental microbiology, 81(15), 4904-4913 (2015-05-17)
Microbial communities within beach sand play a key role in nutrient cycling and are important to the nearshore ecosystem function. Escherichia coli and enterococci, two common indicators of fecal pollution, have been shown to persist in the beach sand, but
Keren B Turton et al.
PloS one, 10(5), e0127243-e0127243 (2015-05-20)
Signal transducer and activator of transcription 3 (STAT3) is a key mediator of leukocyte differentiation and proliferation. The 3' end of STAT3 transcripts is subject to two alternative splicing events. One results in either full-length STAT3α or in STAT3β, which

Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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