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Key Documents

695092

Sigma-Aldrich

乙酸

glacial, ACS reagent, ≥99.7%

同義詞:

冰乙酸

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About This Item

線性公式:
CH3CO2H
CAS號碼:
分子量::
60.05
Beilstein:
506007
EC號碼:
MDL號碼:
分類程式碼代碼:
12352106
PubChem物質ID:
NACRES:
NA.21

等級

ACS reagent

品質等級

蒸汽密度

2.07 (vs air)

蒸汽壓力

11.4 mmHg ( 20 °C)

化驗

≥99.7%

形狀

liquid

自燃溫度

800 °F

expl. lim.

16 %, 92 °F
4 %, 59 °F

技術

mass spectrometry (MS): suitable

雜質

Cr2O72- reducers, passes test
MnO4- reducers, passes test
≤0.0004 meq/g Titr. base
≤0.01% acetic anhydride

蒸發殘留物

≤0.001%

顏色

APHA: ≤10

折射率

n20/D 1.371 (lit.)

pH值

2.5 (20 °C, 50 g/L)

bp

117-118 °C (lit.)

mp

16.2 °C (lit.)

密度

1.04 g/mL at 25 °C (lit.)

負離子痕跡

chloride (Cl-): ≤1 ppm
sulfate (SO42-): ≤1 ppm

正離子痕跡

Fe: ≤0.2 ppm
heavy metals: ≤0.5 ppm (by ICP)

SMILES 字串

[F2C(F2C)13F3C]C(O)=O

InChI

1S/C2H4O2/c1-2(3)4/h1H3,(H,3,4)

InChI 密鑰

QTBSBXVTEAMEQO-UHFFFAOYSA-N

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一般說明

乙酸是一种有机羧酸。这是一种有刺激性气味的易吸潮的液体。冰醋酸是无水乙酸。它通过溶液中的氢键和通常称为相的气体形成二聚体。它呈弱酸性。

應用

乙酸被广泛地用作各种氧化反应的溶剂。它可用于电子转移(ETD)离解串联质谱(MS/MS)分析合成多肽。它可与过氧化氢(30%过氧化氢)反应制备过氧乙酸(消毒剂)。

其他說明

4L和4X4L为塑料瓶包装

象形圖

FlameCorrosion

訊號詞

Danger

危險聲明

危險分類

Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1A

儲存類別代碼

3 - Flammable liquids

水污染物質分類(WGK)

WGK 1

閃點(°F)

102.2 °F - closed cup

閃點(°C)

39 °C - closed cup


分析證明 (COA)

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