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MilliporeSigma

296333

Sigma-Aldrich

p-Xylene

anhydrous, ≥99%

Sinónimos:

1,4-Dimethylbenzene

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About This Item

Fórmula lineal:
C6H4(CH3)2
Número de CAS:
Peso molecular:
106.17
Beilstein:
1901563
Número CE:
Número MDL:
Código UNSPSC:
12352002
ID de la sustancia en PubChem:
NACRES:
NA.21
bp:
138 °C (lit.)
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grado

anhydrous

Nivel de calidad

densidad de vapor

3.7 (vs air)

presión de vapor

9 mmHg ( 20 °C)

Ensayo

≥99%

Formulario

liquid

temp. de autoignición

984 °F

lim. expl.

7 %

impurezas

<0.002% water
<0.005% water (100 mL pkg)

residuo de evap.

<0.0003%

índice de refracción

n20/D 1.495 (lit.)

bp

138 °C (lit.)

mp

12-13 °C (lit.)

solubilidad

water: soluble 0.2 g/L

densidad

0.861 g/mL at 20 °C (lit.)

cadena SMILES

Cc1ccc(C)cc1

InChI

1S/C8H10/c1-7-3-5-8(2)6-4-7/h3-6H,1-2H3

Clave InChI

URLKBWYHVLBVBO-UHFFFAOYSA-N

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Descripción general

p-Xylene is an isomer xylene mainly used in the polyester industry as a raw material for synthesizing 5,6-terephthalic acid.[1]

Aplicación

p-Xylene may be used in the synthesis of ethyl 2,5-dimethylphenylhydroxymalonate by reacting with ethyl oxomalonate in the presence of anhydrous stannic chloride.[2]

Palabra de señalización

Danger

Clasificaciones de peligro

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Asp. Tox. 1 - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

Órganos de actuación

Respiratory system

Código de clase de almacenamiento

3 - Flammable liquids

Clase de riesgo para el agua (WGK)

WGK 2

Punto de inflamabilidad (°F)

80.6 °F - closed cup

Punto de inflamabilidad (°C)

27 °C - closed cup

Equipo de protección personal

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


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Certificados de análisis (COA)

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Riebsomer JL and Irvine J
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Physical chemistry chemical physics : PCCP, 20(24), 16592-16603 (2018-06-07)
Lamellar liquid crystals comprising oil, water and surfactant(s) were formulated and analysed in order to examine how these materials responded to the inclusion of inorganic nanoparticles, in terms of their structural and rheological characteristics. Lamellar phases were formed from mixtures
Ultra-selective cycloaddition of dimethylfuran for renewable p-xylene with H-BEA.
Chang CC, et al.
Green Chemistry, 16(2), 585-588 (2014)
Cycloaddition of biomass-derived furans for catalytic production of renewable p-xylene.
Williams CL, et al.
ACS Catalysis, 2(6), 935-939 (2012)
Friedel-Crafts acylation of toluene and p-xylene with carboxylic acids catalyzed by zeolites.
Chiche B, et al.
The Journal of Organic Chemistry, 51(11), 2128-2130 (1986)

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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