Before any use as a reference material it has to be dried for 4 hours at 110° C.
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21067
Calcium carbonate
reference material for titrimetry, certified by BAM, ≥99.5%
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| Gabaryty przesyłki | SKU | Dostępność | Cena netto |
|---|---|---|---|
| 25 g | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 902,00 zł |
Informacje o tej pozycji
Wzór liniowy:
CaCO3
Numer CAS:
Masa cząsteczkowa:
100.09
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
EC Number:
207-439-9
Beilstein/REAXYS Number:
8008338
MDL number:
902,00 zł
Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności
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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
Search & download your certificate here.
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.
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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Ta pozycja | |||
|---|---|---|---|
| technique(s) titration: suitable | technique(s) HPLC: suitable, gas chromatography (GC): suitable | technique(s) cell culture | insect: suitable | technique(s) - |
| format neat | format neat | format - | format - |
| assay ≥99.5% | assay - | assay ≥99.0% | assay - |
| grade reference material | grade certified reference material, pharmaceutical secondary standard | grade - | grade - |
| Quality Level 100 | Quality Level 300 | Quality Level 200 | Quality Level - |
| 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.) |
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Klasa składowania
13 - Non Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.
Filipe Natalio et al.
Science (New York, N.Y.), 339(6125), 1298-1302 (2013-03-16)
Silicatein-α is responsible for the biomineralization of silicates in sponges. We used silicatein-α to guide the self-assembly of calcite "spicules" similar to the spicules of the calcareous sponge Sycon sp. The self-assembled spicules, 10 to 300 micrometers (μm) in length
M Azizur Rahman et al.
PloS one, 8(3), e58781-e58781 (2013-03-26)
An organic matrix consisting of a protein-polysaccharide complex is generally accepted as an important medium for the calcification process. While the role this "calcified organic matrix" plays in the calcification process has long been appreciated, the complex mixture of proteins
Jane A Cauley et al.
Journal of women's health (2002), 22(11), 915-929 (2013-10-18)
Clinical outcomes of the Women's Health Initiative (WHI) calcium plus vitamin D supplementation trial have been reported during 7.0 years of active intervention. We now report outcomes 4.9 years after the intervention stopped and cumulative findings. Postmenopausal women (N=36,282) were
Numer pozycji handlu globalnego
| SKU | NUMER GTIN |
|---|---|
| 523860-25G | 04061831820690 |
| 21067-25G | 04061835560059 |
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¿Al secar el estandar de referencia en un horno, cual debe ser la temperatura y el rango de la temperatura en la que debe mantenerse y en tiempo de secado?
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Helpful?
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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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How can I determine the shelf life / expiration / retest date of this product?
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