Long-term storage of anhydrous acetonitrile may contribute to the occurrence of microbubbles in the internal tubing of the Cellenone machine. Unopened bottles have a recommended retest period of three years. However, no specific long-term data is available regarding the effects of storage in tubing.
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Produktname
Acetonitril, anhydrous, 99.8%
InChI key
WEVYAHXRMPXWCK-UHFFFAOYSA-N
InChI
1S/C2H3N/c1-2-3/h1H3
SMILES string
CC#N
grade
anhydrous
vapor density
1.41 (vs air)
vapor pressure
72.8 mmHg ( 20 °C)
assay
99.8%
form
liquid
autoignition temp.
973 °F
expl. lim.
16 %
technique(s)
solid phase extraction (SPE): suitable
impurities
<0.001% water
<0.005% water (100 mL pkg)
evapn. residue
<0.0005%
color
colorless
refractive index
n20/D 1.344 (lit.)
bp
81-82 °C (lit.)
mp
−45 °C (lit.)
solubility
water: soluble (completely)
density
0.786 g/mL at 25 °C (lit.)
format
neat
Quality Level
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Verwandte Kategorien
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Dieser Artikel | 34888-M | 439134 | 900644 |
|---|---|---|---|
| Quality Level 200 | Quality Level - | Quality Level 100 | Quality Level 100 |
| grade anhydrous | grade for HPLC, for UV | grade gradient grade | grade ZerO2® |
| assay 99.8% | assay ≥99.9% | assay ≥99.9% | assay 99.8% |
| technique(s) solid phase extraction (SPE): suitable | technique(s) HPLC: suitable | technique(s) HPLC: suitable, UV/Vis spectroscopy: suitable | technique(s) - |
| solubility water: soluble (completely) | solubility - | solubility water: soluble | solubility - |
| form liquid | form liquid | form liquid | form liquid |
Application
- 1,2-Azidoalkohole und 1,2-Azidoamine mittels Cer(III)-Chlorid-unterstützter Ringöffnung von Epoxiden und Aziridinen durch Natriumazid.[1]
- Cyanhaltige Indoline durch oxidative Arylalkylierung von Olefinen in Gegenwart eines Palladiumkatalysators.[2]
Es kann außerdem als Reaktant zur Synthese von Folgendem eingesetzt werden:
- Bis(diphenylphosphino)-acetonitril durch Umsetzung mit n-Butyllithium und anschließend mit Chlordiphenylphosphin.[3]
- β-Acetamidoketone mittels Kupplungsreaktion mit Ketonen oder Ketonestern und Aldehyden in Gegenwart von Cobalt(II)-Chlorid.[4]
General description
Packaging
used together
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signalword
Danger
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2
Lagerklasse
3 - Flammable liquids
wgk
WGK 2
flash_point_f
35.6 °F - closed cup
flash_point_c
2.0 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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Artikel
Stoffe gelten als miteinander mischbar, wenn sie sich zu einer einheitlichen Lösung auflösen. Setzen Sie ein Lesezeichen oder laden Sie unsere Mischbarkeitstabelle für gängige Laborlösungsmittel herunter.
Substances are said to be miscible in one another if they dissolve to form a uniform solution. Bookmark or download our miscibility table for common lab solvents.
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I'm using anhydrous acetonitrile that was opened in 2017. microbubbles frequently occur in the internal tubing(Cellenone machine) . Could this be related to storing it for a long period?
1 answer-
Helpful?
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
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.pdfHelpful?
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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
Helpful?
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Hi! By which method is the acetonitrile dried? Is molecular sieve used? Thanks!
1 answer-
Unfortunately, the manufacturing process of this product is proprietary. If necessary, molecular sieves can help to further dry the product before use.
Helpful?
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Hey, my name is Mohammad. We tried to develop sensor ro detect heavy metals. And I fond some peaks in the solution when I added acn 99.8% and I want to know if there is heavy metals and which metals?
1 answer-
Unfortunately, this product is not tested for heavy metals. Should this be a critical issue for the specific application, see product 900667. This product is tested for trace metals and may be a better option. See the link below to review a sample Certificate of Analysis:
https://www.sigmaaldrich.com/certificates/sapfs/PROD/sap/certificate_pdfs/COFA/Q14/900667-BULKSHBR1056.pdfHelpful?
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