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33209

Sigma-Aldrich

乙酸

glacial, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.8%

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
puriss. p.a.

品質等級

agency

USP/NF
reag. ISO
reag. Ph. Eur.

蒸汽密度

2.07 (vs air)

化驗

≥99.8%

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

≤0.0002% acetaldehyde
≤0.0005% non-volatile matter
≤0.002% KMnO4 red. matter (as HCOOH)
≤0.01% acetic anhydride (GC)
≤0.2% water (Karl Fischer)

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.)

轉變溫度

freezing point ≥16.3 °C

密度

1.04 g/mL at 25 °C (lit.)

負離子痕跡

chloride (Cl-): ≤0.5 mg/kg
phosphate (PO43-): ≤0.5 mg/kg
sulfate (SO42-): ≤0.5 mg/kg

正離子痕跡

Ag: ≤0.01 mg/kg
Al: ≤0.05 mg/kg
As: ≤0.01 mg/kg
Ba: ≤0.01 mg/kg
Be: ≤0.01 mg/kg
Bi: ≤0.1 mg/kg
Ca: ≤0.2 mg/kg
Cd: ≤0.02 mg/kg
Co: ≤0.01 mg/kg
Cr: ≤0.05 mg/kg
Cu: ≤0.01 mg/kg
Fe: ≤0.2 mg/kg
Ge: ≤0.05 mg/kg
K: ≤0.1 mg/kg
Li: ≤0.01 mg/kg
Mg: ≤0.1 mg/kg
Mn: ≤0.01 mg/kg
Mo: ≤0.02 mg/kg
Na: ≤0.5 mg/kg
Ni: ≤0.05 mg/kg
Pb: ≤0.02 mg/kg
Sr: ≤0.01 mg/kg
Ti: ≤0.01 mg/kg
Tl: ≤0.05 mg/kg
V: ≤0.01 mg/kg
Zn: ≤0.05 mg/kg
Zr: ≤0.1 mg/kg

SMILES 字串

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

適合性

passes test for indifference to chromic acid

儲存溫度

room temp

InChI

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

InChI 密鑰

QTBSBXVTEAMEQO-UHFFFAOYSA-N

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相關類別

一般說明

乙酸是一种有机羧酸。本品为吸湿性液体,有刺激性气味。其无水形式通常称为冰醋酸。在溶液和气相中通过氢键连接形成二聚体。性质为弱酸性。

應用

乙酸已被用于电子转移解离 (ETD) 串联质谱 (MS/MS) 分析合成肽。可通过与过氧化氢(30% 过氧化氢)反应制备过氧乙酸(消毒剂)。
用作高氯酸滴定的溶剂

包裝

PE 瓶包装;同时提供玻璃瓶(物料编号以 *-GL结尾)

其他說明

货号 33209-4X2.5L的产品即将停产。请订购33209-2.5L单瓶装,因为其具体参数与上述产品本质相同。
货号为33209-4X2.5L-M 的产品即将停产。请订购33209-2.5L-M单瓶装,因为其物理参数与上述产品本质相同。
货号33209-6X1L-M的产品即将停产。请订购33209-1L-M单瓶装,因为其物理参数与上述产品本质相同。

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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