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
8.22278
Bezwodnik octowy
for synthesis
Synonim(y):
Acetic anhydride, Acetyl acetate, Acetyl oxide
Wybierz wielkość
| Gabaryty przesyłki | SKU | Dostępność | Cena netto |
|---|---|---|---|
| 1 L | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 176,00 zł | |
| 2.5 L | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 346,00 zł | |
| 25 L | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 1280,00 zł |
Informacje o tej pozycji
176,00 zł
grade
synthesis grade
Quality Segment
vapor pressure
4 hPa ( 20 °C)
assay
≥98.0% (GC)
form
liquid
autoignition temp.
330 °C
potency
630 mg/kg LD50, oral (Rat), 4320 mg/kg LD50, skin (Rabbit)
expl. lim.
2.0-10.2 % (v/v)
pH
3 (20 °C, 10 g/L in H2O)
mp
-73 °C
transition temp
flash point 49 °C
density
1.08 g/cm3 at 20 °C
storage temp.
2-30°C
SMILES string
O(C(=O)C)C(=O)C
InChI
1S/C4H6O3/c1-3(5)7-4(2)6/h1-2H3
InChI key
WFDIJRYMOXRFFG-UHFFFAOYSA-N
General description
Application
- W bezrozpuszczalnikowej acylacji 2-metylofuranu do 2-acetylo-5-metylofuranu w obecności katalizatora fluorowodorku.
- Jako katalizator w syntezie pochodnych 3-arylidenoizobenzofuran-1(3H)-onu z bezwodnika ftalowego i pochodnych chinoliny.
- W otrzymywaniu hiperrozgałęzionych polietoksysiloksanów w reakcji kondensacji z tetraetoksysilanem w obecności katalizatora organotytanowego.
Analysis Note
Density (d 20 °C/ 4 °C): 1.080 - 1.082
Identity (IR): passes test
1 of 1
Ta pozycja | |||
|---|---|---|---|
| grade synthesis grade | grade - | grade ACS reagent | grade ACS reagent, puriss. p.a. |
| assay ≥98.0% (GC) | assay ≥99% | assay ≥98.5% (GC) | assay ≥99% (GC) |
| Quality Level 200 | Quality Level 200 | Quality Level 300 | Quality Level 100 |
| form liquid | form liquid | form liquid | form - |
| pH 3 (20 °C, 10 g/L in H2O) | pH - | pH 3 (20 °C, 10 g/L in H2O) | pH - |
| storage temp. 2-30°C | storage temp. - | storage temp. 2-30°C | storage temp. - |
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 2 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B
Klasa składowania
3 - Flammable liquids
wgk
WGK 1
flash_point_f
120.2 °F - closed cup
flash_point_c
49 °C - closed cup
Certyfikaty analizy (CoA)
Poszukaj Certyfikaty analizy (CoA), wpisując numer partii/serii produktów. Numery serii i partii można znaleźć na etykiecie produktu po słowach „seria” lub „partia”.
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Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.
Numer pozycji handlu globalnego
| SKU | NUMER GTIN |
|---|---|
| 8222789025 | 04022536569475 |
| 8222781000 | 04022536487427 |
| 8222782500 | 04022536487434 |
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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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