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360597

Sigma-Aldrich

2,2,4-Triméthylpentane

ACS reagent, ≥99.0%

Synonyme(s) :

Isooctane

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About This Item

Formule linéaire :
(CH3)2CHCH2C(CH3)3
Numéro CAS:
540-84-1
Poids moléculaire :
114.23
Beilstein:
1696876
Numéro CE :
208-759-1
Numéro MDL:
MFCD00008943
Code UNSPSC :
12191502
ID de substance PubChem :
329755268
Nomenclature NACRES :
NA.21
Le tarif et la disponibilité ne sont pas disponibles actuellement.

Qualité

ACS reagent

Niveau de qualité

200

Densité de vapeur

3.9 (vs air)

Pression de vapeur

41 mmHg ( 21 °C)

Essai

≥99.0%

Forme

liquid

Température d'inflammation spontanée

745 °F

Limite d'explosivité

6 %

dilution

(for analytical testing)

Impuretés

≤0.0003 meq/g Water-soluble titr. acid
≤0.005% S compounds

Résidus d'évap.

≤0.001%

Couleur

APHA: ≤10

Indice de réfraction

n20/D 1.391 (lit.)

pb

98-99 °C (lit.)

Pf

−107 °C (lit.)

Solubilité

water: insoluble

Densité

0.692 g/mL at 25 °C (lit.)

Chaîne SMILES 

CC(C)CC(C)(C)C

InChI

1S/C8H18/c1-7(2)6-8(3,4)5/h7H,6H2,1-5H3

Clé InChI

NHTMVDHEPJAVLT-UHFFFAOYSA-N

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Catégories apparentées

Description générale

2,2,4-Trimethylpentane (TMP, isooctane), a volatile organic solvent[1] is used to improve the octane rating of combustion fuels.[2] TMP is a primary reference fuel with an arbitrary octane number of 100 as it burns smoothly without resulting in any knocking.[3] It also a component of gasoline.[1] The physical characteristics of the binary mixtures of n-heptane and 2,2,4-trimethylpentane has been studied that helps in understanding the combustion process of mixtures of primary reference fuels.[4]

Application

2,2,4-Trimethylpentane (TMP, isooctane) may be used in the following studies:
  • Synthesis of polyethyleneimine /silica hybrid nanoparticles.[5]
  • Amino acid quantification process.[6]
  • To dissolve di(2-ethylhexyl) phosphoric acid(DEHPA) to form a solution that is used in the extraction and back extraction of methylene blue.[7]

Mention d'avertissement

Danger

Classification des risques

Aquatic Acute 1 - Aquatic Chronic 1 - Asp. Tox. 1 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3

Organes cibles

Central nervous system

Code de la classe de stockage

3 - Flammable liquids

Classe de danger pour l'eau (WGK)

WGK 2

Point d'éclair (°F)

10.4 °F - closed cup

Point d'éclair (°C)

-12 °C - closed cup

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Certificats d'analyse (COA)

Lot/Batch Number
SHBS5705
SHBR7271
SHBS2122
SHBR8573
SHBR5175

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Tube en cuivre nettoyé tubing L × O.D. × I.D. 50 ft × 1/8 in. (3.18 mm) × 0.065 in. (1.65 mm)

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Sulforhodamine B-Loaded Polyethyleneimine/Silica Hybrid Nanoparticles.
Blumling III and Silva GA.
American Journal of Neuroprotection and Neuroregeneration, 6.1, 73-77 (2014)
Reversed Micellar Extraction of Methylene Blue by using Di (2-ethylhexyl) Phosphoric Acid.
Kinugasa T, et al.
Solvent Extraction Research and Development, Japan, 22(2), 169-176 (2015)
Rafael Bermúdez et al.
PloS one, 10(5), e0123945-e0123945 (2015-05-15)
The unabated rise in anthropogenic CO₂ emissions is predicted to strongly influence the ocean's environment, increasing the mean sea-surface temperature by 4°C and causing a pH decline of 0.3 units by the year 2100. These changes are likely to affect
Density, Viscosity, Speed of Sound, Bulk Modulus, and Surface Tension of Binary Mixtures of n-Heptane+ 2,2,4-Trimethylpentane at (293.15 to 338.15) K and 0.1 MPa.
Prak DJL, et al.
Journal of Chemical and Engineering Data, 59(11), 3842-3851 (2014)
Paul Hellier et al.
Frontiers in bioengineering and biotechnology, 3, 49-49 (2015-05-06)
The metabolic engineering of photosynthetic microbes for production of novel hydrocarbons presents an opportunity for development of advanced designer biofuels. These can be significantly more sustainable, throughout the production-to-consumption lifecycle, than the fossil fuels and crop-based biofuels they might replace.
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Questions

1–2 of 2 Questions  

  1. 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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  2. 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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