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296325

Sigma-Aldrich

m-Xylol

anhydrous, ≥99%

Synonym(e):

1,3-Dimethylbenzen

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About This Item

Lineare Formel:
C6H4(CH3)2
CAS-Nummer:
108-38-3
Molekulargewicht:
106.17
Beilstein:
605441
EG-Nummer:
203-576-3
MDL-Nummer:
MFCD00008536
UNSPSC-Code:
12352002
PubChem Substanz-ID:
57648390
bp:
138-139 °C (lit.)
Preise und Verfügbarkeit sind derzeit nicht verfügbar.

Qualität

anhydrous

Qualitätsniveau

100

Dampfdichte

3.7 (vs air)

Dampfdruck

16 mmHg ( 37.7 °C)

Assay

≥99%

Form

liquid

Selbstzündungstemp.

982 °F

Expl.-Gr.

7 %

Verunreinigungen

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

Abdampfrückstand

<0.0003%

Brechungsindex

n20/D 1.497 (lit.)

bp

138-139 °C (lit.)

mp (Schmelzpunkt)

−48 °C (lit.)

Dichte

0.868 g/mL at 25 °C (lit.)

SMILES String

Cc1cccc(C)c1

InChI

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

InChIKey

IVSZLXZYQVIEFR-UHFFFAOYSA-N

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Anwendung

m-Xylene may be used in the synthesis of 2,4-dimethylbenzophenone via Friedel–Craft acylation with benzoyl chloride over iron-modified tungstophosphoric acid supported on titania.[1] It may also undergo chloromethylation in the presence of organic acids under organic-aqueous biphasic conditions to form a mixture of chloromethyl-2,4-dimethylbenzene and 1,3-bis(chloromethyl)-4,6-dimethylbenzene.[2]

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Produkt-Nr.
Beschreibung
Preisangaben

5.89592

m-Xylol

Signalwort

Danger

Gefahreneinstufungen

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

Zielorgane

Respiratory system

Lagerklassenschlüssel

3 - Flammable liquids

WGK

WGK 2

Flammpunkt (°F)

80.6 °F - closed cup

Flammpunkt (°C)

27 °C - closed cup

Persönliche Schutzausrüstung

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

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
SHBR9430
STBL0685
SHBR3629
SHBQ9117
SHBR3176

Die passende Version wird nicht angezeigt?

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Xylole histological grade

Sigma-Aldrich

534056

Xylole

Xylole Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

Supelco

XX0055

Xylole

o-Xylen analytical standard

Supelco

95660

o-Xylen

p-Xylen for synthesis

Sigma-Aldrich

8.08691

p-Xylen

Xylole Histology

Supelco

XX0060

Xylole

Iron (III)-Modified Tungstophosphoric Acid Supported on Titania Catalyst: Synthesis, Characterization, and Friedel?Craft Acylation of m-Xylene.
Mu M, et al.
Industrial & Engineering Chemistry Research, 54(36), 8893-8899 (2015)
Strong organic acids as efficient catalysts for the chloromethylation of m-xylene: the synthesis of 1, 3-bis (chloromethyl)-4, 6-dimethylbenzene.
Kishida T, et al.
Industrial & Engineering Chemistry Research, 48(4), 1831-1839 (2009)
Fei Yu et al.
Journal of hazardous materials, 192(3), 1370-1379 (2011-08-13)
The purified and oxidized multi-walled carbon nanotubes (MWCNTs) with different oxygen contents are employed as adsorbents to study their physicochemical properties and adsorption behaviors of toluene, ethylbenzene and m-xylene (TEX) in aqueous solutions. The results demonstrate that adsorption capacity is
Rafael Silva-Rocha et al.
Environmental microbiology, 13(9), 2389-2402 (2011-03-18)
The regulatory and metabolic networks that rule biodegradation of pollutants by environmental bacteria are wired to the rest of the cellular physiology through both transcriptional factors and intermediary signal molecules. In this review, we examine some formalisms for describing catalytic/regulatory
Riccardo Salvio et al.
The Journal of organic chemistry, 76(13), 5438-5443 (2011-05-27)
Artificial phosphodiesterases that combine a guanidinium unit with a general base connected by a m-xylylene linker catalyze the transesterification of the RNA model compound 2-hydroxypropyl p-nitrophenyl phosphate (HPNP). The bifunctional catalysts presented in this work show varying extents of cooperation
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Questions

1–3 of 3 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

      Helpful?

  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

      Helpful?

  3. What amount can I buy of m-xylene "296325"? I would like to buy less than 100 ml.

    1 answer

    1. Unfortunately, this product is not currently offered in package sizes of less than 100mL. While not anhydrous, there are two analytical standards that are available in smaller sizes. Please see the links below to review these product options:

      PHR1313-1G
      https://www.sigmaaldrich.com/product/sial/phr1313

      95670-5ML
      https://www.sigmaaldrich.com/US/en/product/sial/95670

      Helpful?

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