The particle size is not a test specification for this product. Typically, materials described as "powder" may have an approximate particle size range of 10–300 µm; however, this parameter is not included in the ACS monograph and is not tested. Verification of the particle size is recommended if this information is required.
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398101
Calciumcarbonat
ACS reagent, 99.95-100.05% dry basis
Synonym(e):
Calcium carbonate
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Über diesen Artikel
Lineare Formel:
CaCO3
CAS-Nummer:
Molekulargewicht:
100.09
UNSPSC Code:
12352300
NACRES:
NA.21
PubChem Substance ID:
EC Number:
207-439-9
Beilstein/REAXYS Number:
8008338
MDL number:
Assay:
99.95-100.05% dry basis
Grade:
ACS reagent
Form:
powder
Solubility:
dilute HCl: 6.7%
Preise und Verfügbarkeit sind derzeit nicht verfügbar.
Technischer Dienst
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Unterstützung erhaltengrade
ACS reagent
Quality Segment
assay
99.95-100.05% dry basis
form
powder
impurities
≤0.01% NH4OH pptd., ≤0.01% insol. dil. HCl
pH
8
solubility
dilute HCl: 6.7%
density
2.93 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤0.001%, fluoride (F-): ≤0.0015%, sulfate (SO42-): ≤0.005%
cation traces
Ba: ≤0.01%, Fe: ≤0.002%, K: ≤0.01%, Mg: ≤0.01%, NH4+: ≤0.003%, Na: ≤0.01%, Sr: ≤0.1%, heavy metals: ≤0.001% (by ICP)
SMILES string
[Ca++].[O-]C([O-])=O
InChI
1S/CH2O3.Ca/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2
InChI key
VTYYLEPIZMXCLO-UHFFFAOYSA-L
General description
Calcium carbonate is a calcium salt commonly found in shells and skeleton of marine animals. It is an inexpensive, non-toxic and easily available reagent with a wide range of applications.
Application
Calcium carbonate may be used:
- As a pore generating agent to prepare porous ceramics.
- As chelometric standard for the standardization of EDTA solution.
- To extract aluminium by microwave induced thermal activation of coal fly ash (CFA).
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Dieser Artikel | |||
|---|---|---|---|
| description ACS reagent, 99.95-100.05% dry basis | description United States Pharmacopeia (USP) Reference Standard | description ≥99.995% trace metals basis | description ReagentPlus® |
| form powder | form - | form powder and chunks | form powder |
| solubility dilute HCl: 6.7% | solubility - | solubility H2O: insoluble | solubility - |
| assay 99.95-100.05% dry basis | assay - | assay ≥99.995% trace metals basis | assay ≥99% (EDTA titration) |
| Quality Level 200 | Quality Level - | Quality Level 100 | Quality Level 200 |
| grade ACS reagent | grade pharmaceutical primary standard | grade - | grade - |
| pH 8 | pH - | pH - | pH 8 |
Lagerklasse
13 - Non Combustible Solids
Was ist los?
nwg
Flammpunkt (°F)
Not applicable
Flammpunkt (°C)
Not applicable
PSA (Persönliche Schutzausrüstung)
dust mask type N95 (US), Eyeshields, Gloves
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Is there a range of the particle sizes?
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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?
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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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