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420840

Sigma-Aldrich

LUDOX® AS-40 colloidal silica

40 wt. % suspension in H2O

동의어(들):

Silica preparation

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크기 선택

1 L
₩90,335
4 L
₩223,300
18 L
₩911,369

₩90,335

구입 가능 여부는 고객센터에 문의하십시오.
벌크 견적 요청
모든 사진(1)

크기 선택

보기 변경
1 L
₩90,335
4 L
₩223,300
18 L
₩911,369

About This Item

Linear Formula:
SiO2
CAS Number:
7631-86-9
Molecular Weight:
60.08
MDL number:
MFCD00011232
UNSPSC 코드:
12352309
PubChem Substance ID:
24866356
NACRES:
NA.22

₩90,335

구입 가능 여부는 고객센터에 문의하십시오.
벌크 견적 요청

설명

colloidal

Quality Level

200

양식

liquid

농도

40 wt. % suspension in H2O

표면적

~135 m2/g

pH

9.1

density

1.295 g/mL at 25 °C

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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일반 설명

LUDOX®  AS-40 colloidal silica is used as a silica source in the preparation of zeolites.[1]

애플리케이션

Ludox AS-40 is used as:
  • A filler material in the nanocomposite Nafion films[2]
  • A precursor in the synthesis of micro-mesoporous carbon spheres[3]

법적 정보

LUDOX is a registered trademark of W.R. Grace & Co.-Conn.

Storage Class Code

12 - Non Combustible Liquids

WGK

nwg

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

개인 보호 장비

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

가장 최신 버전 중 하나를 선택하세요:

시험 성적서(COA)

Lot/Batch Number
MKCX1362
MKCV6403
MKCV5026
MKCW0106
MKCT4415

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

New opportunities in Stober synthesis: preparation of microporous and mesoporous carbon spheres
J Choma, et al.
Journal of Materials Chemistry, 22, 12636-12642 (2012)
Separation of water?acetic acid mixtures by pervaporation using a thin mordenite membrane.
Li G, et al.
Separation and Purification Technology, 32(1-3), 199-206 (2003)
Salt enhanced solvent relaxation and particle surface area determination via rapid spin-lattice NMR.
Elliott L N, et al.
Powder Technology, 333, 458-467 (2018)
The static aging effect on the seedless synthesis of different ranges FAU-type zeolite Y at various factors
Al-Jubouri, et al.
Iraqi Journal of Chemical and Petroleum Engineering, 20, 7-13 (2019)
Interfacial Water Drives Improved Proton Transport in Siliceous Nanocomposite Nafion Thin Films
PJ Goossens, et al.
ChemPhysChem, 19, 538-546 (2018)
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질문

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  1. 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

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  2. 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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