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294829

Sigma-Aldrich

2-Methyl-1-propanol

anhydrous, 99.5%

Synonym(e):

Isobutanol, Isobutylalkohol

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About This Item

Lineare Formel:
(CH3)2CHCH2OH
CAS-Nummer:
78-83-1
Molekulargewicht:
74.12
Beilstein:
1730878
EG-Nummer:
201-148-0
MDL-Nummer:
MFCD00004740
UNSPSC-Code:
12352001
PubChem Substanz-ID:
57648375
NACRES:
NA.21
bp:
108 °C (lit.)
Preise und Verfügbarkeit sind derzeit nicht verfügbar.

Qualität

anhydrous

Qualitätsniveau

100

Dampfdichte

2.55 (vs air)

Dampfdruck

8 mmHg ( 20 °C)
8.8 mmHg ( 0 °C)

Assay

99.5%

Form

liquid

Selbstzündungstemp.

801 °F

Expl.-Gr.

10.6 %

Verunreinigungen

<0.003% water
<0.005% water (100 mL pkg)

Abdampfrückstand

<0.0005%

Brechungsindex

n20/D 1.396 (lit.)

bp

108 °C (lit.)

mp (Schmelzpunkt)

−108 °C (lit.)

Dichte

0.803 g/mL at 25 °C (lit.)

SMILES String

CC(C)CO

InChI

1S/C4H10O/c1-4(2)3-5/h4-5H,3H2,1-2H3

InChIKey

ZXEKIIBDNHEJCQ-UHFFFAOYSA-N

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Anwendung

Isobutyl alcohol is a water-soluble aliphatic alcohol that is widely used as a solvent in organic synthesis. It is used in the preparation of vanadium phosphate catalysts for the efficient dehydration of xylose into furfural and selective oxidation of n-butane to maleic anhydride.

Signalwort

Danger

Gefahreneinstufungen

Eye Dam. 1 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

Zielorgane

Central nervous system, Respiratory system

Lagerklassenschlüssel

3 - Flammable liquids

WGK

WGK 1

Flammpunkt (°F)

82.4 °F - closed cup

Flammpunkt (°C)

28 °C - closed cup

Persönliche Schutzausrüstung

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
SHBR1206
SHBQ8289
SHBP7066
SHBM4836
SHBL4318

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Die Dokumentenbibliothek aufrufen

Diffusion in the Three Component Liquid System Methyl Alcohol-n-Propyl Alcohol-Isobutyl Alcohol.
Shuck FO and Toor HL.
The Journal of Physical Chemistry, 67(3), 540-545 (1963)
Determination of inorganic phosphate.
Martin JB and Doty DM.
Analytical Chemistry, 21(8), 965-967 (1949)
Arul M Varman et al.
Applied and environmental microbiology, 79(3), 908-914 (2012-11-28)
Global warming and decreasing fossil fuel reserves have prompted great interest in the synthesis of advanced biofuels from renewable resources. In an effort to address these concerns, we performed metabolic engineering of the cyanobacterium Synechocystis sp. strain PCC 6803 to
Jan-Karl Guterl et al.
ChemSusChem, 5(11), 2165-2172 (2012-10-23)
The limited supply of fossil resources demands the development of renewable alternatives to petroleum-based products. Here, biobased higher alcohols such as isobutanol are versatile platform molecules for the synthesis of chemical commodities and fuels. Currently, their fermentation-based production is limited
Aiqin Shi et al.
Metabolic engineering, 16, 1-10 (2012-12-19)
Isobutanol is an excellent alternative biofuel. Fermentative production of isobutanol had been realized in several microorganisms by combining branched-chain amino acids synthetic pathway and Ehrlich pathway. In contrast to using plasmid overexpression and inducible promoters, genetically stable Escherichia coli strains
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Questions

1–2 of 2 Questions  

  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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