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
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
50 g | Estimated to ship onNovember 30, 2026fromMILWAUKEE | $165.00 |
250 g | Available to ship TODAYfromMILWAUKEE | $552.00 |
About This Item
Quality Segment
assay
99.995% trace metals basis
form
chips
composition
Cr
reaction suitability
core: chromium
sustainability
Sustainability features
resistivity
12.7 μΩ-cm, 20°C
bp
2672 °C (lit.)
mp
1857 °C (lit.)
density
7.14 g/mL at 25 °C (lit.)
SMILES string
[Cr]
InChI
1S/Cr
InChI key
VYZAMTAEIAYCRO-UHFFFAOYSA-N
General description
1 of 1
This Item | |||
|---|---|---|---|
| description chips, 99.995% trace metals basis | description microfoil, disks, 25mm, thinness 0.05μm, specific density 37.27μg/cm2, permanent mylar 3.5μm support, 99.99+% | description rod, 10mm, diameter 5.0mm, 99.7+% | description foil, not light tested, 50x50mm, thickness 0.0125mm, permanent polyester support, 99.99+% |
| assay 99.995% trace metals basis | assay ≥99.99% | assay ≥99.7% | assay 99.99% |
| form chips | form - | form rod | form foil |
| mp 1857 °C (lit.) | mp 1857 °C (lit.) | mp 1857 °C (lit.) | mp 1857 °C (lit.) |
| bp 2672 °C (lit.) | bp 2672 °C (lit.) | bp 2672 °C (lit.) | bp 2672 °C (lit.) |
| resistivity 12.7 μΩ-cm, 20°C | resistivity 12.7 μΩ-cm, 20°C | resistivity 12.7 μΩ-cm, 20°C | resistivity 12.7 μΩ-cm, 20°C |
| density 7.14 g/mL at 25 °C (lit.) | density 7.14 g/mL at 25 °C (lit.) | density 7.14 g/mL at 25 °C (lit.) | density 7.14 g/mL at 25 °C (lit.) |
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Storage Class
11 - Combustible Solids
WGK
nwg
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
PPE (personal protective equipment)
Eyeshields, Gloves, type N95 (US)
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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