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342890

Sigma-Aldrich

Silicon dioxide

−325 mesh, 99.5% trace metals basis

동의어(들):

Cristobalite, Quartz, Sand, Silica

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크기 선택

100 G
₩148,089
1 KG
₩489,738

₩148,089

출고 가능일2025년 4월 22일세부사항

벌크 견적 요청
모든 사진(3)

크기 선택

보기 변경
100 G
₩148,089
1 KG
₩489,738

About This Item

Linear Formula:
SiO2
CAS Number:
60676-86-0
Molecular Weight:
60.08
EC Number:
262-373-8
MDL number:
MFCD00011232
UNSPSC 코드:
12352303
PubChem Substance ID:
24861083
NACRES:
NA.23

₩148,089

출고 가능일2025년 4월 22일세부사항

벌크 견적 요청

Quality Level

100

분석

99.5% trace metals basis

양식

powder

refractive index

n20/D 1.544 (lit.)

입자 크기

−325 mesh

mp

1610 °C (lit.)

density

2.6 g/mL at 25 °C (lit.)

응용 분야

battery manufacturing

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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관련 카테고리

애플리케이션

SiO2 is majorly used as a substrate material with excellent thermo-mechanical properties which can be used in a variety of applications which include: vapor deposition[1][2], phase deposition[3], atomic force microscopy probes(AFM)[4], spin coating[5], electronic based devices.[6]

기타 정보

May contain adsorbed H2O and CO2 which is removable by calcining at >900°C

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

개인 보호 장비

dust mask type N95 (US), Eyeshields, Gloves

가장 최신 버전 중 하나를 선택하세요:

시험 성적서(COA)

Lot/Batch Number
MKCW1671
MKCV5291
MKCT1789
MKCQ0211
MKCN2365

적합한 버전을 찾을 수 없으신가요?

특정 버전이 필요한 경우 로트 번호나 배치 번호로 특정 인증서를 찾을 수 있습니다.

COA 검색

이 제품을 이미 가지고 계십니까?

문서 라이브러리에서 최근에 구매한 제품에 대한 문서를 찾아보세요.

문서 라이브러리 방문

Exciton diffusion measurements in poly (3-hexylthiophene).
Shaw PE, et al.
Advanced Materials, 20(18), 3516-3520 (2008)
The effect of calcination temperature on the surface microstructure and photocatalytic activity of TiO2 thin films prepared by liquid phase deposition.
Yu J, et al.
The Journal of Physical Chemistry B, 107(50), 13871-13879 (2003)
Growth model of bamboo-shaped carbon nanotubes by thermal chemical vapor deposition.
Lee CJ and Park J
Applied Physics Letters, 77(21), 3397-3399 (2000)
Electrical and optical properties of ZnO transparent conducting films by the sol-gel method.
Lee J, et al.
Journal of Crystal Growth, 247(1-2), 119-125 (2003)
Oxygen-aided synthesis of polycrystalline graphene on silicon dioxide substrates.
Chen J, et al.
Journal of the American Chemical Society, 133(44), 17548-17551 (2011)
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질문

1–3 / 3 질문  

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

    1 답변

    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 답변

    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

      도움이 되었습니까?

  3. Is it(342890) porous silica? I want to know the specific surface area and particle size distribution(dispersity) (Batch number is MKCT1789)

    1 답변

    1. The quality specifications for product no. 342890-100G Silicon dioxide do not include a determination of its specific surface area. Our supplier does characterize the product as porous silica.

      As the Certificate of Analysis for lot MKCT1789 shows, the mean particle size is 2.08 microns. Detailed QC testing shows:
      Diameter at 10%: 0.45 microns
      Diameter at 50%: 2.06 microns
      Diameter at 90%: 3.88 microns

      Future lots of the product might vary in their particle size characteristics within the quality specification of being no larger than 45.00 microns.

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