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.pdf
79724
Natronlauge
1 M, suitable for HPCE
Synonym(e):
Natriumhydroxid -Lösung
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InChI
1S/Na.H2O/h;1H2/q+1;/p-1
InChI key
HEMHJVSKTPXQMS-UHFFFAOYSA-M
vapor pressure
3 mmHg ( 37 °C)
form
liquid
concentration
0.9-1.1 M, 1 M
UV absorption
λ: 260 nm Amax: ≤0.5, λ: 270 nm Amax: ≤0.2, λ: 280 nm Amax: ≤0.03, λ: 290 nm Amax: ≤0.01, λ: 500 nm Amax: ≤0.01
suitability
suitable for HPCE
Quality Level
SMILES string
[OH-].[Na+]
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Dieser Artikel | |||
|---|---|---|---|
| grade for HPCE | grade - | grade for molecular biology | grade - |
| concentration 0.9-1.1 M | concentration 48-52% (by HCl, titration), 50% in H2O | concentration 10 M in H2O, 9500-10500 mmol/L (titration, acidimetric) | concentration 49-51% in water |
| Quality Level 100 | Quality Level 100 | Quality Level 200 | Quality Level 100 |
| form liquid | form liquid (viscous) | form liquid | form liquid |
| vapor pressure 3 mmHg ( 37 °C) | vapor pressure 3 mmHg ( 37 °C) | vapor pressure 3 mmHg ( 37 °C) | vapor pressure 3 mmHg ( 37 °C) |
| UV absorption λ: 260 nm Amax: ≤0.5 | UV absorption - | UV absorption λ: 260 nm Amax: ≤0.08, λ: 280 nm Amax: ≤0.05 | UV absorption - |
General description
Application
- useful for transesterification of triglycerides, cholesteryl esters and phospholipids
- provides convenient, fast, quantitative derivatization
- converts free fatty acids into its sodium salts
signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B
Lagerklasse
8B - Non-combustible corrosive hazardous materials
wgk
WGK 1
flash_point_f
Not applicable
flash_point_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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