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
추천 제품
양식
nanopowder
Quality Level
입자 크기
<100 nm (TEM)
density
7.16 g/mL at 25 °C (lit.)
SMILES string
O=[W](=O)=O
InChI
1S/3O.W
InChI key
ZNOKGRXACCSDPY-UHFFFAOYSA-N
유사한 제품을 찾으십니까? 방문 제품 비교 안내
일반 설명
Storage Class Code
11 - 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)
이미 열람한 고객
문서
Catalytic water splitting produces hydrogen crucial for renewable energy, petroleum refining, and chemical industry applications like methanol production.
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How can I determine the shelf life / expiration / retest date of this product?
1 답변-
도움이 되었습니까?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 답변-
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?
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What is the size distribution for this particles? Can I observe them via AFM?
1 답변-
Unfortunately, the size distribution of Product 550086 has not been tested. However, 100 nm particles should be visible in AFM.
도움이 되었습니까?
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Hi, I am interested to purchase these nanoparticles, is it possible to see the TEM images? I need spherical nanoparticles and could not see an indication of the shape. And lastly, are they stored in water? Thank you very much. Best regards
1 답변-
These nanoparticles are generally spherical.
See the TEM image below.
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활성 필터
자사의 과학자팀은 생명 과학, 재료 과학, 화학 합성, 크로마토그래피, 분석 및 기타 많은 영역을 포함한 모든 과학 분야에 경험이 있습니다..
고객지원팀으로 연락바랍니다.
