Before any use as a reference material it has to be dried for 4 hours at 110° C.
21067
Carbonato de calcio
reference material for titrimetry, certified by BAM, ≥99.5%
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| A ustedes/SKU | Disponibilidad | Precio |
|---|---|---|
25 g | Comprobar disponibilidad del carrito | $204.000 |
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Fórmula lineal:
CaCO3
Número CAS:
Peso molecular:
100.09
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
EC Number:
207-439-9
Beilstein/REAXYS Number:
8008338
MDL number:
Servicio técnico
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reference material
Quality Segment
assay
≥99.5%
quality
certified by BAM
technique(s)
titration: suitable
solubility
H2O: insoluble
density
2.93 g/mL at 25 °C (lit.)
format
neat
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 volumetric standard is manufactured under stringent conditions and measured with the highest possible precision. The standard is qualified by volumetric complexometric titration with photometric endpoint detection. Its certified value and uncertainty measurement are in accordance with ISO Guide 35.
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Application
It finds its use as a reference material for the standardization of volumetric solutions in complexometric titrations.
Features and Benefits
- Available as a solid in a secure glass bottle to ensure its stability for the entire shelf life until opened.
- High-quality offering accurate titer determinations
- Accompanied by a certificate of analysis (CoA)
Analysis Note
Exact concentration, expiry date, traceability and detailed information on certification can be found on the certificate and certification report, included in each package. Content and expiry date on label.
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Este artículo | |||
|---|---|---|---|
| technique(s) titration: suitable | technique(s) HPLC: suitable, gas chromatography (GC): suitable | technique(s) - | technique(s) cell culture | insect: suitable |
| assay ≥99.5% | assay - | assay 99.95-100.05% dry basis | assay ≥99.0% |
| format neat | format neat | format - | format - |
| grade reference material | grade certified reference material, pharmaceutical secondary standard | grade ACS reagent | grade - |
| density 2.93 g/mL at 25 °C (lit.) | density 2.93 g/mL at 25 °C (lit.) | density 2.93 g/mL at 25 °C (lit.) | density 2.93 g/mL at 25 °C (lit.) |
| solubility H2O: insoluble | solubility - | solubility dilute HCl: 6.7% | solubility H2O: soluble (10 g + 20 mL of HCl, dilute to 150 mL with H2O) |
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Clase de almacenamiento
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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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