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398276

Sigma-Aldrich

Diisopropyl ether

contains either BHT or hydroquinone as stabilizer, ACS reagent, ≥99.0%

Sinonimo/i:

Isopropyl ether

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About This Item

Formula condensata:
(CH3)2CHOCH(CH3)2
Numero CAS:
108-20-3
Peso molecolare:
102.17
Beilstein:
1731256
Numero CE:
203-560-6
Numero MDL:
MFCD00008880
Codice UNSPSC:
12191502
ID PubChem:
329755910
NACRES:
NA.07
Prezzi e disponibilità al momento non sono disponibili

Grado

ACS reagent

Livello qualitativo

200

Densità del vapore

3.5 (vs air)

Tensione di vapore

120 mmHg ( 20 °C)

Saggio

≥99.0%

Stato

liquid

Temp. autoaccensione

827 °F

contiene

either BHT or hydroquinone as stabilizer

Limite di esplosione

1-21 %, 100 °F

dilution

(for analytical testing)

Impurezze

≤0.0007 meq/g Titr. acid
≤0.05% Peroxide (as C6H14O2)

Residuo dopo evaporazione

≤0.01%

Colore

APHA: ≤25

Indice di rifrazione

n20/D 1.367 (lit.)

P. ebollizione

68-69 °C (lit.)

Punto di fusione

−85 °C (lit.)

Densità

0.725 g/mL at 25 °C (lit.)

Stringa SMILE

CC(C)OC(C)C

InChI

1S/C6H14O/c1-5(2)7-6(3)4/h5-6H,1-4H3
ZAFNJMIOTHYJRJ-UHFFFAOYSA-N

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Descrizione generale

Diisopropyl ether (DIPE) is branched ether.[1] It is a peroxide forming solvent. This process is catalyzed by heat, light and oxygen. For such solvents small amount of stabilizers like BHT (butylated hydroxytoluene) or hydroquinone is added which removes the free radicals that form peroxides. DIPE has been proposed as a potential alternative oxygenated fuel additive.[1][2] Several methods have been proposed for its synthesis using acetone as starting material.[2][3] The molecular structure and conformation has been studied using gas-phase electron diffusion.[4] Its potential carcinogenicity has been studied in Sprague-Dawley rats.[5]

Applicazioni

Diisopropyl ether may be used as a solvent in the following processes:
  • Resolution of secondary alcohols.[6]
  • Enantioselective acylation of 1-phenethylamine.[7]
  • Synthesis of aliphatic and aromatic cyanohydrins.[8]

Pittogrammi

FlameExclamation mark
GHS02,GHS07

Avvertenze

Danger

Indicazioni di pericolo

H225,H336

Classi di pericolo

Flam. Liq. 2 - STOT SE 3

Organi bersaglio

Central nervous system

Rischi supp

EUH019,EUH066

Codice della classe di stoccaggio

3 - Flammable liquids

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

-20.2 °F - closed cup

Punto d’infiammabilità (°C)

-29 °C - closed cup

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Certificati d'analisi (COA)

Lot/Batch Number
SHBM3291
SHBM2950
SHBM2949
SHBM2951
SHBL8899

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Resolution of secondary alcohols using lipase in diisopropyl ether.
Bevinakatti HS, et al.
The Journal of Organic Chemistry, 54(10), 2453-2455 (1989)
Diisopropyl ether one-step generation from acetone-rich feedstocks.
Taylor RJ, et al.
Catalysis Letters, 68(1-2), 1-5 (2000)
Diisopropyl ether syntheses from crude acetone.
Knifton JF and D PSE.
Catalysis Letters, 57(4), 193-197 (1999)
Molecular structure and conformation of diisopropyl ether: a gas electron diffraction investigation.
Takeuchi H, et al.
The Journal of Physical Chemistry, 91(5), 1015-1019 (1987)
Cross-linked enzyme aggregates (CLEAs): stable and recyclable biocatalysts.
Sheldon RA.
Biochemical Society Transactions, 35(6) (2007)
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Protocolli

Solvent Systems for Thin-layer Chromatography of Novabiochem Products

A guide to create solvent systems used for the thin-layer chromatography assay of Novabiochem products.

Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. 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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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. 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

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