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Merck

95660

Supelco

邻二甲苯

analytical standard

别名:

1,2-二甲苯

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$177.00
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5 ML
$177.00
50 ML
$981.00

About This Item

线性分子式:
C6H4(CH3)2
CAS号:
分子量:
106.17
Beilstein:
1815558
EC 号:
MDL编号:
UNSPSC代码:
41116107
PubChem化学物质编号:
NACRES:
NA.24

$177.00


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等级

analytical standard

质量水平

蒸汽密度

3.7 (vs air)

蒸汽压

<0.1 atm ( 21.1 °C)
16 mmHg ( 37.7 °C)
7 mmHg ( 20 °C)

方案

≥99.0% (GC)

自燃温度

867 °F

保质期

limited shelf life, expiry date on the label

expl. lim.

7 %

技术

HPLC: suitable
gas chromatography (GC): suitable

折射率

n20/D 1.505 (lit.)
n20/D 1.505

沸点

143-145 °C (lit.)

mp

-26--23 °C (lit.)

密度

0.879 g/mL at 20 °C (lit.)

应用

environmental

包装形式

neat

SMILES字符串

Cc1ccccc1C

InChI

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

InChI key

CTQNGGLPUBDAKN-UHFFFAOYSA-N

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一般描述

o-邻二甲苯是一种环境污染物,属于挥发性有机化合物类。它的排放来源多种多样,包括粘合剂、脱脂剂、木材和燃料的燃烧产物、工业涂料、气溶胶等。[1]

应用

-二甲苯可用作模型污染物,通过测量纤维材料对它的吸收并评估它在tenax上的迁移行为,研究基于与食品接触的回收纤维的产品的安全使用。[2]
O-邻二甲苯可作用分析参考标准,用于量化职业环境样本和水样中的分析物,采用气相-邻二甲苯可作用分析参考标准,用于量化职业环境样本[3]和水样中的分析物[4][5],采用气相色谱技术和不同的检测模式。
有关合适仪器技术的更多信息,请参考产品的分析证书。如需进一步支持,请联系技术服务。

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警示用语:

Danger

危险分类

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

靶器官

Respiratory system

储存分类代码

3 - Flammable liquids

WGK

WGK 2

闪点(°F)

89.6 °F - closed cup

闪点(°C)

32.0 °C - closed cup

个人防护装备

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


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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顶空级溶剂在有机挥发性杂质分析之中的应用

Learn about analyzing organic volatile impurities (OVIs) in pharmaceuticals using SH-GC, focusing on suitable solvents and ensuring compliance.

Questions

1–2 of 2 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

      Helpful?

  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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