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Merck

74564

Supelco

三氟乙酸

analytical standard

别名:

TFA

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About This Item

线性分子式:
CF3COOH
CAS号:
分子量:
114.02
Beilstein:
742035
EC 号:
MDL编号:
UNSPSC代码:
41116107
PubChem化学物质编号:
NACRES:
NA.24
价格与库存信息目前不能提供

等级

analytical standard

质量水平

蒸汽密度

3.9 (vs air)

蒸汽压

97.5 mmHg ( 20 °C)

方案

≥99.0% (GC)

保质期

limited shelf life, expiry date on the label

技术

HPLC: suitable
gas chromatography (GC): suitable

杂质

≤0.05% water

折射率

n20/D 1.3 (lit.)

沸点

72.4 °C (lit.)

mp

−15.4 °C (lit.)

溶解性

H2O: soluble

密度

1.489 g/mL at 20 °C (lit.)

应用

environmental

包装形式

neat

SMILES字符串

OC(C(F)(F)F)=O

InChI

1S/C2HF3O2/c3-2(4,5)1(6)7/h(H,6,7)

InChI key

DTQVDTLACAAQTR-UHFFFAOYSA-N

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一般描述

三氟乙酸是一种植物性毒素化合物,属于全氟酸类(PFA)。它是一种环境污染物,会造成地表水和地下水中的有机氟的负担。[1]

应用

三氟乙酸由于属性色谱选择性、高挥发性和低紫外截留量等特点,可作为高效液相色谱流动相的改性剂用于蛋白质和多肽的分离。[2]
基于其色谱选择性、强挥发性和低紫外截断等特点,三氟乙酸可作为高效液相色谱流动相的改性剂用于蛋白质和多肽的分离。
三氟乙酸作为分析参考标准品,通过高效液相色谱结合串联质谱测定水基质中的分析物。[1]
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。

象形图

CorrosionExclamation mark

警示用语:

Danger

危险声明

危险分类

Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1A

储存分类代码

8A - Combustible corrosive hazardous materials

WGK

WGK 2

闪点(°F)

>212.0 °F - Pensky-Martens closed cup

闪点(°C)

> 100 °C - Pensky-Martens closed cup

个人防护装备

Faceshields, Gloves, Goggles, 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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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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