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重要文件

371696

Sigma-Aldrich

四氯乙烯

anhydrous, ≥99%

同義詞:

PCE, 全氯乙烯

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About This Item

線性公式:
CCl2=CCl2
CAS號碼:
分子量::
165.83
Beilstein:
1361721
EC號碼:
MDL號碼:
分類程式碼代碼:
12352101
PubChem物質ID:
NACRES:
NA.04
bp:
121 °C (lit.)
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等級

anhydrous

品質等級

蒸汽密度

5.83 (vs air)

蒸汽壓力

13 mmHg ( 20 °C)
19 mmHg ( 25 °C)

化驗

≥99%

形狀

liquid

技術

FTIR: suitable

雜質

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

蒸發殘留物

<0.0005%

折射率

n20/D 1.505 (lit.)

bp

121 °C (lit.)

mp

−22 °C (lit.)

溶解度

water: soluble 0.15 g/L at 25 °C

密度

1.623 g/mL at 25 °C (lit.)

SMILES 字串

Cl\C(Cl)=C(\Cl)Cl

InChI

1S/C2Cl4/c3-1(4)2(5)6

InChI 密鑰

CYTYCFOTNPOANT-UHFFFAOYSA-N

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一般說明

四氯乙烯(全氯乙烯,PCE)是一种氯化乙烯化合物,通常用作干洗和脱脂溶剂。[1]它因为没有C–H键而具有红外透明度,使其成为一种理想的红外光谱溶剂。[2][3]PCE是一种难以降解的人为污染物。[4]它是一种地下水污染物[5],因其潜在的毒性和致癌性而会对人体健康产生不利影响。[6]已经提出对其进行降解的方法包括芬顿氧化处理[7]、产甲烷条件下的还原性脱卤化[6]以及使用零价金属离子的还原。[5]已报道的合成方法之一是来自于二氯乙烷和氯气。[8]

應用

四氯乙烯可用作非对称七氯丙烷合成的起始材料。[9]它也可以作为溶剂,用于从四氯环丙烯和乙烯制备1-氯-1-(三氯乙烯基)环丙烷。[10]
四氯乙烯可用作锂离子电池制造中的成膜电解质添加剂。[11]它还可作为萃取剂用于通过傅立叶变换红外光谱(FT-IR)对水中的油脂进行估算。[2]

訊號詞

Warning

危險分類

Aquatic Chronic 2 - Carc. 2 - Eye Irrit. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

標靶器官

Central nervous system

儲存類別代碼

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

水污染物質分類(WGK)

WGK 3

閃點(°F)

No data available

閃點(°C)

No data available

個人防護裝備

Eyeshields, Gloves, type ABEK (EN14387) respirator filter


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分析證明 (COA)

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存取文件庫

1-Chloro-1-(trichloroethenyl)cyclopropane
Liese T, et al.
Organic Syntheses, 69, 144-144 (1990)
unsym.-heptachloropropane
Farlow MW
Organic Syntheses, 17, 58-58 (1937)
Jenn-Shing Chen et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 60(10), 2287-2293 (2004-07-14)
The dimerization of 2,2-dimethyl-3-ethyl-3-pentanol in tetrachloroethylene in the diluted region has been studied at four temperatures by IR spectroscopy. The aforementioned solute compound is chosen because self-association beyond dimerization is hampered by the steric hindrance generated by the bulky sidechains.
Sorption of trichloroethylene and tetrachloroethylene in a batch reactive metallic iron-water system.
D R Burris et al.
Environmental science & technology, 29(11), 2850-2855 (1995-11-01)
Tetrachloroethylene as new film-forming additive to propylene carbonate-based electrolytes for lithium ion batteries with graphitic anode.
Hu Y, et al.
Solid State Ionics, 176(1), 53-56 (2005)

Questions

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  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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