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重要文件

443808

Sigma-Aldrich

丁基甲基醚

ACS reagent, ≥99.0%

同義詞:

MTBE, 甲基叔丁基醚

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About This Item

線性公式:
(CH3)3COCH3
CAS號碼:
分子量::
88.15
Beilstein:
1730942
EC號碼:
MDL號碼:
分類程式碼代碼:
12352112
PubChem物質ID:
NACRES:
NA.07
bp:
55-56 °C (lit.)
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等級

ACS reagent

品質等級

蒸汽密度

3.1 (vs air)

蒸汽壓力

4.05 psi

化驗

≥99.0%

形狀

liquid

自燃溫度

705 °F

expl. lim.

15.1 %

dilution

(for analytical testing)

雜質

≤0.05% water
<1 ppm H2O2

蒸發殘留物

≤0.001%

顏色

APHA: ≤10

折射率

n20/D 1.369 (lit.)

bp

55-56 °C (lit.)

mp

-110 °C

密度

0.74 g/mL at 25 °C (lit.)

應用

microbiology

SMILES 字串

COC(C)(C)C

InChI

1S/C5H12O/c1-5(2,3)6-4/h1-4H3

InChI 密鑰

BZLVMXJERCGZMT-UHFFFAOYSA-N

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一般說明

丁基甲基醚(甲基丁醚,MTBE)是一种汽油添加剂。丙烷氧化细菌菌株对其进行氧化降解已经过测定。[1]其热介导的生物降解的动力学已经在多种反应条件下进行了研究。其生物降解遵循伪一级衰变模型,并且其伪一级速率常数已经过测定。[2]其水中的提取物已通过使用有机聚合化合物Nafion进行研究。[3]MTBE可以通过甲醇和异丁烯之间的酸催化反应合成。[4]一项研究表明,MTBE的加入通过停流法增加了丙烯聚合过程中活性位点的数量。[5]该溶剂符合ACS(美国化学学会)规范,可用于需要严格质量条件的工艺,如分析测试。

應用

甲基醚(甲基丁醚,MTBE)可用于:
  • 作为混合微生物菌群中的唯一碳和能量来源。[6]
  • 从生物液体中提取脂质用于鸟枪法谱分析。[7]
  • 在超临界条件下,在不存在催化剂的情况下通过菜籽油的酯交换,合成脂肪酸甲酯(FAME)和甘油丁醚。[8]

象形圖

FlameExclamation mark

訊號詞

Danger

危險聲明

危險分類

Flam. Liq. 2 - Skin Irrit. 2

儲存類別代碼

3 - Flammable liquids

水污染物質分類(WGK)

WGK 1

閃點(°F)

-18.4 °F - closed cup

閃點(°C)

-28 °C - closed cup


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分析證明 (COA)

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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

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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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