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/418/501/product-dating-information-06-25-mk.pdf
342890
Silicon dioxide
−325 mesh, 99.5% trace metals basis
Synonyma:
Cristobalite, Quartz, Sand, Silica
Vybrat velikost
| Vám/SKU | Dostupnost | Cena |
|---|---|---|
100 g | Obraťte se na zákaznický servis a vyžádejte si informaci o dostupnosti. | 3 130,00 Kč |
1 kg | Obraťte se na zákaznický servis a vyžádejte si informaci o dostupnosti. | 9 010,00 Kč |
O této položce
3 130,00 Kč
Quality Segment
assay
99.5% trace metals basis
form
powder
composition
SiO2
reaction suitability
core: silicon
refractive index
n20/D 1.544 (lit.)
particle size
−325 mesh
mp
1610 °C (lit.)
density
2.6 g/mL at 25 °C (lit.)
application(s)
battery manufacturing
glass & ceramic
SMILES string
O=[Si]=O
InChI
1S/O2Si/c1-3-2
InChI key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
Application
Other Notes
1 of 1
Tato položka | |||
|---|---|---|---|
| description −325 mesh, 99.5% trace metals basis | description pieces (granular), 1-3 mm, 99.9% trace metals basis | description single crystal substrate, optical grade, 99.99% trace metals basis, L × W × thickness 10 mm × 10 mm × 0.5 mm | description - |
| form powder | form pieces (granular) | form solid | form nanofiber |
| particle size −325 mesh | particle size 1-3 mm | particle size - | particle size - |
| assay 99.5% trace metals basis | assay 99.9% trace metals basis | assay 99.99% trace metals basis | assay - |
| density 2.6 g/mL at 25 °C (lit.) | density 2.6 g/mL at 25 °C (lit.) | density 2.6 g/mL at 25 °C (lit.), 2.684 g/mL | density - |
| mp 1610 °C (lit.) | mp 1610 °C (lit.) | mp 1610 °C (lit.) | mp - |
| application(s) battery manufacturing | application(s) battery manufacturing | application(s) - | application(s) - |
Still not finding the right product?
Explore all of our products under Silicon dioxide
Skladovací třída
13 - Non Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
Vyberte jednu z posledních verzí:
Již tento produkt vlastníte?
Dokumenty související s produkty, které jste v minulosti zakoupili, byly za účelem usnadnění shromážděny ve vaší Knihovně dokumentů.
-
How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
-
-
How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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
Helpful?
-
-
Is it(342890) porous silica? I want to know the specific surface area and particle size distribution(dispersity) (Batch number is MKCT1789)
1 answer-
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 micronsFuture lots of the product might vary in their particle size characteristics within the quality specification of being no larger than 45.00 microns.
Helpful?
-