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
S4751
Stearic acid
Grade I, ≥98.5% (capillary GC)
Sinonimo/i:
1-Heptadecanecarboxylic acid, C18:0, Cetylacetic acid, NSC 25956, NSC 261168, Octadecanoic acid, Stearophanic acid
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About This Item
Prodotti consigliati
Tensione di vapore
1 mmHg ( 173.7 °C)
Livello qualitativo
Tipo
Grade I
Saggio
≥98.5% (capillary GC)
Stato
powder
P. ebollizione
361 °C (lit.)
Punto di fusione
67-72 °C (lit.)
Solubilità
chloroform: 100 mg/mL, clear, colorless
Densità
0.845 g/cm3
Gruppo funzionale
carboxylic acid
Tipo di lipide
saturated FAs
Condizioni di spedizione
ambient
Temperatura di conservazione
2-8°C
Stringa SMILE
CCCCCCCCCCCCCCCCCC(O)=O
InChI
1S/C18H36O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h2-17H2,1H3,(H,19,20)
QIQXTHQIDYTFRH-UHFFFAOYSA-N
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Categorie correlate
Codice della classe di stoccaggio
11 - Combustible Solids
Classe di pericolosità dell'acqua (WGK)
nwg
Punto d’infiammabilità (°F)
392.0 °F - Cleveland open cup
Punto d’infiammabilità (°C)
200 °C - Cleveland open cup
Dispositivi di protezione individuale
dust mask type N95 (US), Eyeshields, Gloves
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
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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Hello, what’s the difference between synthesis grade and grade 1? What kind of impurities are in both? Thank you.
1 answer-
The Synthesis grade, product 8.00673, has been tested for suitability in synthesis applications. The Grade I, product S4751, is not tested for a specific application and is intended for general laboratory use. Unfortunately, the impurities are not identified in either of these products. Limited testing on impurities is performed on the Food Grade product, W303518.
See the link below to review the specifications for this product option:
https://www.sigmaaldrich.com/specification-sheets/234/856/W303518-BULK-K____ALDRICH__.pdfHelpful?
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