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296325

Sigma-Aldrich

间二甲苯

anhydrous, ≥99%

同義詞:

1,3-二甲苯

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About This Item

線性公式:
C6H4(CH3)2
CAS號碼:
108-38-3
分子量：:
106.17
Beilstein:
605441
EC號碼:
203-576-3
MDL號碼:
MFCD00008536
分類程式碼代碼:
12352002
PubChem物質ID:
57648390
bp:
138-139 °C (lit.)
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等級

anhydrous

品質等級

100

蒸汽密度

3.7 (vs air)

蒸汽壓力

16 mmHg ( 37.7 °C)

化驗

≥99%

形狀

liquid

自燃溫度

982 °F

expl. lim.

7 %

雜質

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

蒸發殘留物

<0.0003%

折射率

n20/D 1.497 (lit.)

bp

138-139 °C (lit.)

mp

−48 °C (lit.)

密度

0.868 g/mL at 25 °C (lit.)

SMILES 字串

Cc1cccc(C)c1

InChI

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

InChI 密鑰

IVSZLXZYQVIEFR-UHFFFAOYSA-N

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相關類別

應用

间二甲苯可以在二氧化钛负载型铁改性钨磷酸上，通过与苯甲酰氯发生Friedel-Craft酰化反应，合成2,4-二甲基二苯甲酮。[1]在有机-水双相条件下，它也能在有机酸存在下发生氯甲基化反应，形成氯甲基-2,4-二甲基苯与1,3-双（氯甲基）-4,6-二甲基苯的混合物。[2]

相關產品

產品號碼
描述
訂價

5.89592

间二甲苯

訊號詞

Danger

危險分類

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

標靶器官

Respiratory system

儲存類別代碼

3 - Flammable liquids

水污染物質分類（WGK）

WGK 2

閃點（°F）

80.6 °F - closed cup

閃點（°C）

27 °C - closed cup

個人防護裝備

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

從最近期的版本中選擇一個：

分析證明 (COA)

Lot/Batch Number
SHBR9430
STBL0685
SHBR3629
SHBQ9117
SHBR3176

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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
Michalis Koutinas et al.
Environmental microbiology, 12(6), 1705-1718 (2010-06-18)
The structure of the extant transcriptional control network of the TOL plasmid pWW0 born by Pseudomonas putida mt-2 for biodegradation of m-xylene is far more complex than one would consider necessary from a mere engineering point of view. In order
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Questions

1–3 of 3 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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  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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