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/449/386/product-dating-information-mk.pdf
223506
Cloruro de calcio dihydrate
ACS reagent, ≥99%
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About This Item
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grado
ACS reagent
presión de vapor
0.01 mmHg ( 20 °C)
Ensayo
≥99%
99.0-105.0% (ACS specification)
Formulario
powder or crystals
impurezas
≤0.003% oxidizers
≤0.01% NH4OH pptd.
≤0.01% calcium chloride
≤0.01% insolubles
pH
4.5-8.5 (25 °C, 5%)
mp
176 °C (dec.) (lit.)
trazas de anión
sulfate (SO42-): ≤0.01%
trazas de catión
Ba: ≤0.005%
Fe: ≤0.001%
K: ≤0.01%
Mg: ≤0.005%
NH4+: ≤0.005%
Na: ≤0.02%
Sr: ≤0.1%
heavy metals: ≤5 ppm (by ICP)
temp. de almacenamiento
room temp
cadena SMILES
O.O.Cl[Ca]Cl
InChI
1S/Ca.2ClH.2H2O/h;2*1H;2*1H2/q+2;;;;/p-2
Clave InChI
LLSDKQJKOVVTOJ-UHFFFAOYSA-L
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Este artículo | 31307 | C3881 | 208290 |
|---|---|---|---|
| form powder or crystals | form crystalline | form powder | form solid |
| assay ≥99%, 99.0-105.0% (ACS specification) | assay ≥99% | assay ≥99.0% | assay ≥99% (by assay) |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 100 |
| grade ACS reagent | grade ACS reagent, puriss. p.a. | grade - | grade ACS reagent |
| impurities ≤0.003% oxidizers, ≤0.01% calcium chloride, ≤0.01% NH4OH pptd., ≤0.01% insolubles | impurities ≤0.003% oxidizing substances (as NO3), ≤0.005% ammonium (NH4), ≤0.01% insoluble in water, ≤5 ppm heavy metals (by ICP) | impurities - | impurities - |
| pH 4.5-8.5 (25 °C, 5%) | pH 4.5-8.0 (25 °C, 5%) | pH 5-8 (25 °C, 147 g/L) | pH - |
Descripción general
Aplicación
Palabra de señalización
Warning
Frases de peligro
Consejos de prudencia
Clasificaciones de peligro
Eye Irrit. 2
Código de clase de almacenamiento
13 - Non Combustible Solids
Clase de riesgo para el agua (WGK)
WGK 1
Punto de inflamabilidad (°F)
Not applicable
Punto de inflamabilidad (°C)
Not applicable
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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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