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Merck

296325

m-Xylene

anhydrous, ≥99%

Synonim(y):

1,3-Dimethylbenzene

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Informacje o tej pozycji

Wzór liniowy:
C6H4(CH3)2
Numer CAS:
Masa cząsteczkowa:
106.17
EC Number:
203-576-3
UNSPSC Code:
12352002
PubChem Substance ID:
Beilstein/REAXYS Number:
605441
MDL number:
Assay:
≥99%
Grade:
anhydrous
Bp:
138-139 °C (lit.)
Vapor pressure:
16 mmHg ( 37.7 °C)

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InChI key

IVSZLXZYQVIEFR-UHFFFAOYSA-N

InChI

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

SMILES string

Cc1cccc(C)c1

grade

anhydrous

vapor density

3.7 (vs air)

vapor pressure

16 mmHg ( 37.7 °C)

assay

≥99%

form

liquid

autoignition temp.

982 °F

expl. lim.

7 %

impurities

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

evapn. residue

<0.0003%

Quality Level

refractive index

n20/D 1.497 (lit.)

bp

138-139 °C (lit.)

mp

−48 °C (lit.)

density

0.868 g/mL at 25 °C (lit.)

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Application

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. 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.
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Opis
Cennik

signalword

Danger

Hazard Classifications

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

target_organs

Respiratory system

Klasa składowania

3 - Flammable liquids

wgk

WGK 2

flash_point_f

80.6 °F - closed cup

flash_point_c

27 °C - closed cup

ppe

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


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Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.

Odwiedź Bibliotekę dokumentów

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)
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
Sulak Sumitsawan et al.
Environmental science & technology, 45(16), 6970-6977 (2011-07-19)
Titanium dioxide (TiO(2)) is a preferred catalyst for photocatalytic oxidation of many air pollutants. In an effort to enhance its photocatalytic activity, TiO(2) was modified by pulsed plasma treatment. In this work, TiO(2) nanoparticles, coated on a glass plate, were
Dragana Bozinovski et al.
FEMS microbiology ecology, 81(1), 134-144 (2012-03-01)
A sulfate-reducing consortium maintained for several years in the laboratory with m-xylene as sole source of carbon and energy was characterized by terminal restriction fragment length polymorphism (T-RFLP) fingerprinting of PCR-amplified 16S rRNA genes and stable isotope probing of proteins

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/418/501/product-dating-information-06-25-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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  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

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