The crystallinity of this material has not been evaluated and XRD analysis is not performed. However, Calcium Oxide, CAS 1305-78-8, is listed as a crystalline solid. The suitability of this product for use as an internal standard would have to be determined by the end user.
208159
Calcium oxide
ReagentPlus®, 99.9% trace metals basis
Synonym(s):
Lime, Quicklime
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| Size/SKU | Availability | Price |
|---|---|---|
25 g | Check Cart for Availability | $60.10 |
100 g | Available to ship TODAYfromMILWAUKEE | $165.00 |
500 g | Check Cart for Availability | $849.00 |
About This Item
Linear Formula:
CaO
CAS Number:
Molecular Weight:
56.08
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352303
EC Number:
215-138-9
MDL number:
Quality Segment
product line
ReagentPlus®
assay
99.9% trace metals basis
form
powder
composition
CaO
reaction suitability
reagent type: catalyst
core: calcium
loss
10.0% loss on ignition, 1000°C (absorbed H2O and CO2)
bp
2850 °C (lit.)
density
3.3 g/mL at 25 °C (lit.)
application(s)
battery manufacturing
SMILES string
O=[Ca]
InChI
1S/Ca.O
InChI key
ODINCKMPIJJUCX-UHFFFAOYSA-N
General description
Units are 10% in excess of stated weight to compensate for the loss of H2O and CO2
Application
- Calcium oxide as a promising heterogeneous catalyst for biodiesel production: Current state and perspectives: Discusses the use of calcium oxide derived from natural sources like limestone, seashells, and eggshells as an effective catalyst in biodiesel production (Marinković et al., 2016).
Legal Information
ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany
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This Item | |||
|---|---|---|---|
| description ReagentPlus®, 99.9% trace metals basis | description reagent grade | description anhydrous, powder, ≥99.99% trace metals basis | description nanopowder, <160 nm particle size (BET), 98% |
| form powder | form powder | form powder | form nanopowder |
| assay 99.9% trace metals basis | assay - | assay ≥99.99% trace metals basis | assay 98% |
| density 3.3 g/mL at 25 °C (lit.) | density 3.3 g/mL at 25 °C (lit.) | density 3.3 g/mL at 25 °C (lit.) | density 3.3 g/mL at 25 °C (lit.) |
| bp 2850 °C (lit.) | bp 2850 °C (lit.) | bp 2850 °C (lit.) | bp 2850 °C (lit.) |
| application(s) battery manufacturing | application(s) - | application(s) battery manufacturing | application(s) - |
| reaction suitability reagent type: catalyst | reaction suitability - | reaction suitability reagent type: catalyst | reaction suitability core: calcium |
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Signal Word
Danger
Hazard Codes
Precautionary Statements
Hazard Classifications
Eye Dam. 1 - Skin Irrit. 2 - STOT SE 3
Target Organs
Respiratory system
Storage Class
11 - Combustible Solids
WGK
WGK 1
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
PPE (personal protective equipment)
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
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Is this crystalline powder, can I use this powder as an internal standard for Cement samples. Do you have XRD data or crystal structure information. Thanks
1 answer-
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What is the particle size of CaO powder?
1 answer-
The particle size of this product is not tested on a lot to lot basis. However, historical data indicates a particle size of less than 125 microns.
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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfHelpful?
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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
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